contribution!</p><p>Have fun using these products, and we hope to meet all of you
out on the rocket flight line somewhere.</p><div class="blockquote"><blockquote class="blockquote"><div class="literallayout"><p>Bdale Garbee, KB0G<br />
NAR #87103, TRA #12201</p></div></blockquote></div><div class="blockquote"><blockquote class="blockquote"><div class="literallayout"><p>Keith Packard, KD7SQG<br />
-NAR #88757, TRA #12200</p></div></blockquote></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="chapter"><a href="#_introduction_and_overview">1. Introduction and Overview</a></span></dt><dt><span class="chapter"><a href="#_getting_started">2. Getting Started</a></span></dt><dd><dl><dt><span class="section"><a href="#_batteries">2.1. Batteries</a></span></dt><dt><span class="section"><a href="#_linux_mac_windows_ground_station_software">2.2. Linux/Mac/Windows Ground Station Software</a></span></dt></dl></dd><dt><span class="chapter"><a href="#_using_altus_metrum_hardware">3. Using Altus Metrum Hardware</a></span></dt><dd><dl><dt><span class="section"><a href="#_wiring_and_electrical_interference">3.1. Wiring and Electrical Interference</a></span></dt><dt><span class="section"><a href="#_hooking_up_lithium_polymer_batteries">3.2. Hooking Up Lithium Polymer Batteries</a></span></dt><dt><span class="section"><a href="#_hooking_up_pyro_charges">3.3. Hooking Up Pyro Charges</a></span></dt><dt><span class="section"><a href="#_hooking_up_a_power_switch">3.4. Hooking Up a Power Switch</a></span></dt><dt><span class="section"><a href="#_understanding_beeps">3.5. Understanding Beeps</a></span></dt><dt><span class="section"><a href="#_turning_on_the_power">3.6. Turning On the Power</a></span></dt><dt><span class="section"><a href="#_using_an_external_active_switch_circuit">3.7. Using an External Active Switch Circuit</a></span></dt><dt><span class="section"><a href="#_using_a_separate_pyro_battery">3.8. Using a Separate Pyro Battery</a></span></dt><dt><span class="section"><a href="#_using_a_different_kind_of_battery">3.9. Using a Different Kind of Battery</a></span></dt></dl></dd><dt><span class="chapter"><a href="#_easymini">4. EasyMini</a></span></dt><dd><dl><dt><span class="section"><a href="#_easymini_screw_terminals">4.1. EasyMini Screw Terminals</a></span></dt><dt><span class="section"><a href="#_connecting_a_battery_to_easymini">4.2. Connecting A Battery To EasyMini</a></span></dt><dt><span class="section"><a href="#_charging_lithium_batteries">4.3. Charging Lithium Batteries</a></span></dt><dt><span class="section"><a href="#_using_a_separate_pyro_battery_with_easymini">4.4. Using a Separate Pyro Battery with EasyMini</a></span></dt><dt><span class="section"><a href="#_using_an_active_switch_with_easymini">4.5. Using an Active Switch with EasyMini</a></span></dt></dl></dd><dt><span class="chapter"><a href="#_installation">5. Installation</a></span></dt><dt><span class="chapter"><a href="#_using_altus_metrum_products">6. Using Altus Metrum Products</a></span></dt><dd><dl><dt><span class="section"><a href="#_in_the_rocket">6.1. In the Rocket</a></span></dt><dt><span class="section"><a href="#_on_the_ground">6.2. On the Ground</a></span></dt><dt><span class="section"><a href="#_data_analysis">6.3. Data Analysis</a></span></dt><dt><span class="section"><a href="#_future_plans">6.4. Future Plans</a></span></dt></dl></dd><dt><span class="chapter"><a href="#_altosui">7. AltosUI</a></span></dt><dd><dl><dt><span class="section"><a href="#_save_flight_data">7.1. Save Flight Data</a></span></dt><dt><span class="section"><a href="#_replay_flight">7.2. Replay Flight</a></span></dt><dt><span class="section"><a href="#_graph_data">7.3. Graph Data</a></span></dt><dd><dl><dt><span class="section"><a href="#_flight_graph">7.3.1. Flight Graph</a></span></dt><dt><span class="section"><a href="#_configure_graph">7.3.2. Configure Graph</a></span></dt><dt><span class="section"><a href="#_flight_statistics">7.3.3. Flight Statistics</a></span></dt></dl></dd><dt><span class="section"><a href="#_export_data">7.4. Export Data</a></span></dt><dd><dl><dt><span class="section"><a href="#_comma_separated_value_format">7.4.1. Comma Separated Value Format</a></span></dt></dl></dd><dt><span class="section"><a href="#_configure_altimeter">7.5. Configure Altimeter</a></span></dt><dd><dl><dt><span class="section"><a href="#_main_deploy_altitude">7.5.1. Main Deploy Altitude</a></span></dt><dt><span class="section"><a href="#_apogee_delay">7.5.2. Apogee Delay</a></span></dt><dt><span class="section"><a href="#_apogee_lockout">7.5.3. Apogee Lockout</a></span></dt><dt><span class="section"><a href="#_maximum_flight_log_size">7.5.4. Maximum Flight Log Size</a></span></dt><dt><span class="section"><a href="#_ignitor_firing_mode">7.5.5. Ignitor Firing Mode</a></span></dt><dt><span class="section"><a href="#_beeper_frequency">7.5.6. Beeper Frequency</a></span></dt></dl></dd><dt><span class="section"><a href="#_configure_altosui">7.6. Configure AltosUI</a></span></dt><dd><dl><dt><span class="section"><a href="#_log_directory">7.6.1. Log Directory</a></span></dt><dt><span class="section"><a href="#_imperial_units">7.6.2. Imperial Units</a></span></dt><dt><span class="section"><a href="#_serial_debug">7.6.3. Serial Debug</a></span></dt><dt><span class="section"><a href="#_font_size">7.6.4. Font size</a></span></dt><dt><span class="section"><a href="#_look_amp_feel">7.6.5. Look & feel</a></span></dt><dt><span class="section"><a href="#_menu_position">7.6.6. Menu position</a></span></dt></dl></dd><dt><span class="section"><a href="#_flash_image">7.7. Flash Image</a></span></dt><dt><span class="section"><a href="#_fire_igniter">7.8. Fire Igniter</a></span></dt></dl></dd><dt><span class="appendix"><a href="#_system_operation">A. System Operation</a></span></dt><dd><dl><dt><span class="section"><a href="#_firmware_modes">A.1. Firmware Modes</a></span></dt><dt><span class="section"><a href="#_ground_testing">A.2. Ground Testing</a></span></dt><dt><span class="section"><a href="#_configurable_parameters">A.3. Configurable Parameters</a></span></dt></dl></dd><dt><span class="appendix"><a href="#_handling_precautions">B. Handling Precautions</a></span></dt><dt><span class="appendix"><a href="#_updating_device_firmware">C. Updating Device Firmware</a></span></dt><dd><dl><dt><span class="section"><a href="#_updating_easymini_firmware">C.1. Updating EasyMini Firmware</a></span></dt><dd><dl><dt><span class="section"><a href="#_recovering_from_self_flashing_failure">C.1.1. Recovering From Self-Flashing Failure</a></span></dt></dl></dd></dl></dd><dt><span class="appendix"><a href="#_flight_data_recording">D. Flight Data Recording</a></span></dt><dt><span class="appendix"><a href="#_altus_metrum_hardware_specifications">E. Altus Metrum Hardware Specifications</a></span></dt><dt><span class="appendix"><a href="#_release_notes">F. Release Notes</a></span></dt><dd><dl><dt><span class="section"><a href="#_release_notes_for_version_1_8_6">F.1. Release Notes for Version 1.8.6</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos">F.1.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_telegps">F.1.2. AltosUI, TeleGPS</a></span></dt><dt><span class="section"><a href="#_micropeak">F.1.3. MicroPeak</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_8_5">F.2. Release Notes for Version 1.8.5</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_2">F.2.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_telegps_2">F.2.2. AltosUI, TeleGPS</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_8_4">F.3. Release Notes for Version 1.8.4</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_3">F.3.1. AltOS</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_8_3">F.4. Release Notes for Version 1.8.3</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_4">F.4.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_and_telegps_applications">F.4.2. AltosUI and TeleGPS Applications</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_8_2">F.5. Release Notes for Version 1.8.2</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_5">F.5.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_and_telegps_applications_2">F.5.2. AltosUI and TeleGPS Applications</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_8_1">F.6. Release Notes for Version 1.8.1</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_6">F.6.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_and_telegps_applications_3">F.6.2. AltosUI and TeleGPS Applications</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_8">F.7. Release Notes for Version 1.8</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_7">F.7.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_and_telegps_applications_4">F.7.2. AltosUI and TeleGPS Applications</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_7">F.8. Release Notes for Version 1.7</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_8">F.8.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_and_telegps_applications_5">F.8.2. AltosUI and TeleGPS Applications</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_6_8">F.9. Release Notes for Version 1.6.8</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_9">F.9.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_telegps_and_altosdroid_applications">F.9.2. AltosUI, TeleGPS and AltosDroid Applications</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_6_5">F.10. Release Notes for Version 1.6.5</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_10">F.10.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_telegps_and_altosdroid_applications_2">F.10.2. AltosUI, TeleGPS and AltosDroid Applications</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_6_4">F.11. Release Notes for Version 1.6.4</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_11">F.11.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_telegps_and_altosdroid_applications_3">F.11.2. AltosUI, TeleGPS and AltosDroid Applications</a></span></dt><dt><span class="section"><a href="#_documentation">F.11.3. Documentation</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_6_3">F.12. Release Notes for Version 1.6.3</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_12">F.12.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_and_telegps_applications_6">F.12.2. AltosUI and TeleGPS Applications</a></span></dt><dt><span class="section"><a href="#_altosdroid">F.12.3. AltosDroid</a></span></dt><dt><span class="section"><a href="#_documentation_2">F.12.4. Documentation</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_6_2">F.13. Release Notes for Version 1.6.2</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_13">F.13.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_and_telegps_applications_7">F.13.2. AltosUI and TeleGPS Applications</a></span></dt><dt><span class="section"><a href="#_documentation_3">F.13.3. Documentation</a></span></dt></dl></dd></dl></dd></dl></div><div class="list-of-figures"><p><strong>List of Figures</strong></p><dl><dt>4.1. <a href="#idm280">EasyMini Board</a></dt><dt>7.1. <a href="#idm411">AltosUI Main Window</a></dt><dt>7.2. <a href="#idm438">Flight Data Graph</a></dt><dt>7.3. <a href="#idm449">Flight Graph Configuration</a></dt><dt>7.4. <a href="#idm468">Flight Statistics</a></dt><dt>7.5. <a href="#idm486">Altimeter Configuration</a></dt><dt>7.6. <a href="#idm558">Configure AltosUI Dialog</a></dt><dt>7.7. <a href="#idm592">Fire Igniter Window</a></dt></dl></div><div class="list-of-tables"><p><strong>List of Tables</strong></p><dl><dt>3.1. <a href="#idm96">AltOS Modes</a></dt><dt>3.2. <a href="#idm204">Pad/Idle Indications</a></dt><dt>4.1. <a href="#idm292">EasyMini Screw Terminals</a></dt><dt>D.1. <a href="#idm692">Data Storage on Altus Metrum altimeters</a></dt><dt>E.1. <a href="#idm723">Altus Metrum Flight Computer Electronics</a></dt><dt>E.2. <a href="#idm763">Altus Metrum Flight Computer Mechanical Components</a></dt></dl></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="_introduction_and_overview"></a>Chapter 1. Introduction and Overview</h1></div></div></div><p>Welcome to the Altus Metrum community! Our circuits and software reflect
+NAR #88757, TRA #12200</p></div></blockquote></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl class="toc"><dt><span class="chapter"><a href="#_introduction_and_overview">1. Introduction and Overview</a></span></dt><dt><span class="chapter"><a href="#_getting_started">2. Getting Started</a></span></dt><dd><dl><dt><span class="section"><a href="#_batteries">2.1. Batteries</a></span></dt><dt><span class="section"><a href="#_linux_mac_windows_ground_station_software">2.2. Linux/Mac/Windows Ground Station Software</a></span></dt></dl></dd><dt><span class="chapter"><a href="#_using_altus_metrum_hardware">3. Using Altus Metrum Hardware</a></span></dt><dd><dl><dt><span class="section"><a href="#_wiring_and_electrical_interference">3.1. Wiring and Electrical Interference</a></span></dt><dt><span class="section"><a href="#_hooking_up_lithium_polymer_batteries">3.2. Hooking Up Lithium Polymer Batteries</a></span></dt><dt><span class="section"><a href="#_hooking_up_pyro_charges">3.3. Hooking Up Pyro Charges</a></span></dt><dt><span class="section"><a href="#_hooking_up_a_power_switch">3.4. Hooking Up a Power Switch</a></span></dt><dt><span class="section"><a href="#_understanding_beeps">3.5. Understanding Beeps</a></span></dt><dt><span class="section"><a href="#_turning_on_the_power">3.6. Turning On the Power</a></span></dt><dt><span class="section"><a href="#_using_an_external_active_switch_circuit">3.7. Using an External Active Switch Circuit</a></span></dt><dt><span class="section"><a href="#_using_a_separate_pyro_battery">3.8. Using a Separate Pyro Battery</a></span></dt><dt><span class="section"><a href="#_using_a_different_kind_of_battery">3.9. Using a Different Kind of Battery</a></span></dt><dt><span class="section"><a href="#_using_packet_link_mode">3.10. Using Packet Link Mode</a></span></dt></dl></dd><dt><span class="chapter"><a href="#_easymini">4. EasyMini</a></span></dt><dd><dl><dt><span class="section"><a href="#_easymini_screw_terminals">4.1. EasyMini Screw Terminals</a></span></dt><dt><span class="section"><a href="#_connecting_a_battery_to_easymini">4.2. Connecting A Battery To EasyMini</a></span></dt><dt><span class="section"><a href="#_charging_lithium_batteries">4.3. Charging Lithium Batteries</a></span></dt><dt><span class="section"><a href="#_using_a_separate_pyro_battery_with_easymini">4.4. Using a Separate Pyro Battery with EasyMini</a></span></dt><dt><span class="section"><a href="#_using_an_active_switch_with_easymini">4.5. Using an Active Switch with EasyMini</a></span></dt></dl></dd><dt><span class="chapter"><a href="#_installation">5. Installation</a></span></dt><dt><span class="chapter"><a href="#_using_altus_metrum_products">6. Using Altus Metrum Products</a></span></dt><dd><dl><dt><span class="section"><a href="#_in_the_rocket">6.1. In the Rocket</a></span></dt><dt><span class="section"><a href="#_on_the_ground">6.2. On the Ground</a></span></dt><dt><span class="section"><a href="#_data_analysis">6.3. Data Analysis</a></span></dt><dt><span class="section"><a href="#_future_plans">6.4. Future Plans</a></span></dt></dl></dd><dt><span class="chapter"><a href="#_altosui">7. AltosUI</a></span></dt><dd><dl><dt><span class="section"><a href="#_save_flight_data">7.1. Save Flight Data</a></span></dt><dt><span class="section"><a href="#_replay_flight">7.2. Replay Flight</a></span></dt><dt><span class="section"><a href="#_graph_data">7.3. Graph Data</a></span></dt><dd><dl><dt><span class="section"><a href="#_flight_graph">7.3.1. Flight Graph</a></span></dt><dt><span class="section"><a href="#_configure_graph">7.3.2. Configure Graph</a></span></dt><dt><span class="section"><a href="#_flight_statistics">7.3.3. Flight Statistics</a></span></dt></dl></dd><dt><span class="section"><a href="#_export_data">7.4. Export Data</a></span></dt><dd><dl><dt><span class="section"><a href="#_comma_separated_value_format">7.4.1. Comma Separated Value Format</a></span></dt></dl></dd><dt><span class="section"><a href="#_configure_altimeter">7.5. Configure Altimeter</a></span></dt><dd><dl><dt><span class="section"><a href="#_main_deploy_altitude">7.5.1. Main Deploy Altitude</a></span></dt><dt><span class="section"><a href="#_apogee_delay">7.5.2. Apogee Delay</a></span></dt><dt><span class="section"><a href="#_apogee_lockout">7.5.3. Apogee Lockout</a></span></dt><dt><span class="section"><a href="#_maximum_flight_log_size">7.5.4. Maximum Flight Log Size</a></span></dt><dt><span class="section"><a href="#_ignitor_firing_mode">7.5.5. Ignitor Firing Mode</a></span></dt><dt><span class="section"><a href="#_beeper_frequency">7.5.6. Beeper Frequency</a></span></dt></dl></dd><dt><span class="section"><a href="#_configure_altosui">7.6. Configure AltosUI</a></span></dt><dd><dl><dt><span class="section"><a href="#_log_directory">7.6.1. Log Directory</a></span></dt><dt><span class="section"><a href="#_imperial_units">7.6.2. Imperial Units</a></span></dt><dt><span class="section"><a href="#_serial_debug">7.6.3. Serial Debug</a></span></dt><dt><span class="section"><a href="#_font_size">7.6.4. Font size</a></span></dt><dt><span class="section"><a href="#_look_amp_feel">7.6.5. Look & feel</a></span></dt><dt><span class="section"><a href="#_menu_position">7.6.6. Menu position</a></span></dt></dl></dd><dt><span class="section"><a href="#_flash_image">7.7. Flash Image</a></span></dt><dt><span class="section"><a href="#_fire_igniter">7.8. Fire Igniter</a></span></dt></dl></dd><dt><span class="appendix"><a href="#_system_operation">A. System Operation</a></span></dt><dd><dl><dt><span class="section"><a href="#_firmware_modes">A.1. Firmware Modes</a></span></dt><dt><span class="section"><a href="#_ground_testing">A.2. Ground Testing</a></span></dt><dt><span class="section"><a href="#_configurable_parameters">A.3. Configurable Parameters</a></span></dt></dl></dd><dt><span class="appendix"><a href="#_handling_precautions">B. Handling Precautions</a></span></dt><dt><span class="appendix"><a href="#_updating_device_firmware">C. Updating Device Firmware</a></span></dt><dd><dl><dt><span class="section"><a href="#_updating_easymini_firmware">C.1. Updating EasyMini Firmware</a></span></dt><dd><dl><dt><span class="section"><a href="#_recovering_from_self_flashing_failure">C.1.1. Recovering From Self-Flashing Failure</a></span></dt></dl></dd></dl></dd><dt><span class="appendix"><a href="#_flight_data_recording">D. Flight Data Recording</a></span></dt><dt><span class="appendix"><a href="#_altus_metrum_hardware_specifications">E. Altus Metrum Hardware Specifications</a></span></dt><dt><span class="appendix"><a href="#_release_notes">F. Release Notes</a></span></dt><dd><dl><dt><span class="section"><a href="#_release_notes_for_version_1_8_6">F.1. Release Notes for Version 1.8.6</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos">F.1.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_telegps">F.1.2. AltosUI, TeleGPS</a></span></dt><dt><span class="section"><a href="#_micropeak">F.1.3. MicroPeak</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_8_5">F.2. Release Notes for Version 1.8.5</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_2">F.2.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_telegps_2">F.2.2. AltosUI, TeleGPS</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_8_4">F.3. Release Notes for Version 1.8.4</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_3">F.3.1. AltOS</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_8_3">F.4. Release Notes for Version 1.8.3</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_4">F.4.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_and_telegps_applications">F.4.2. AltosUI and TeleGPS Applications</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_8_2">F.5. Release Notes for Version 1.8.2</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_5">F.5.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_and_telegps_applications_2">F.5.2. AltosUI and TeleGPS Applications</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_8_1">F.6. Release Notes for Version 1.8.1</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_6">F.6.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_and_telegps_applications_3">F.6.2. AltosUI and TeleGPS Applications</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_8">F.7. Release Notes for Version 1.8</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_7">F.7.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_and_telegps_applications_4">F.7.2. AltosUI and TeleGPS Applications</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_7">F.8. Release Notes for Version 1.7</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_8">F.8.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_and_telegps_applications_5">F.8.2. AltosUI and TeleGPS Applications</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_6_8">F.9. Release Notes for Version 1.6.8</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_9">F.9.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_telegps_and_altosdroid_applications">F.9.2. AltosUI, TeleGPS and AltosDroid Applications</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_6_5">F.10. Release Notes for Version 1.6.5</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_10">F.10.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_telegps_and_altosdroid_applications_2">F.10.2. AltosUI, TeleGPS and AltosDroid Applications</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_6_4">F.11. Release Notes for Version 1.6.4</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_11">F.11.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_telegps_and_altosdroid_applications_3">F.11.2. AltosUI, TeleGPS and AltosDroid Applications</a></span></dt><dt><span class="section"><a href="#_documentation">F.11.3. Documentation</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_6_3">F.12. Release Notes for Version 1.6.3</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_12">F.12.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_and_telegps_applications_6">F.12.2. AltosUI and TeleGPS Applications</a></span></dt><dt><span class="section"><a href="#_altosdroid">F.12.3. AltosDroid</a></span></dt><dt><span class="section"><a href="#_documentation_2">F.12.4. Documentation</a></span></dt></dl></dd><dt><span class="section"><a href="#_release_notes_for_version_1_6_2">F.13. Release Notes for Version 1.6.2</a></span></dt><dd><dl><dt><span class="section"><a href="#_altos_13">F.13.1. AltOS</a></span></dt><dt><span class="section"><a href="#_altosui_and_telegps_applications_7">F.13.2. AltosUI and TeleGPS Applications</a></span></dt><dt><span class="section"><a href="#_documentation_3">F.13.3. Documentation</a></span></dt></dl></dd></dl></dd></dl></div><div class="list-of-figures"><p><strong>List of Figures</strong></p><dl><dt>4.1. <a href="#idm284">EasyMini Board</a></dt><dt>7.1. <a href="#idm415">AltosUI Main Window</a></dt><dt>7.2. <a href="#idm442">Flight Data Graph</a></dt><dt>7.3. <a href="#idm453">Flight Graph Configuration</a></dt><dt>7.4. <a href="#idm472">Flight Statistics</a></dt><dt>7.5. <a href="#idm490">Altimeter Configuration</a></dt><dt>7.6. <a href="#idm562">Configure AltosUI Dialog</a></dt><dt>7.7. <a href="#idm596">Fire Igniter Window</a></dt></dl></div><div class="list-of-tables"><p><strong>List of Tables</strong></p><dl><dt>3.1. <a href="#idm96">AltOS Modes</a></dt><dt>3.2. <a href="#idm204">Pad/Idle Indications</a></dt><dt>4.1. <a href="#idm296">EasyMini Screw Terminals</a></dt><dt>D.1. <a href="#idm696">Data Storage on Altus Metrum altimeters</a></dt><dt>E.1. <a href="#idm727">Altus Metrum Flight Computer Electronics</a></dt><dt>E.2. <a href="#idm784">Altus Metrum Flight Computer Mechanical Components</a></dt></dl></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="_introduction_and_overview"></a>Chapter 1. Introduction and Overview</h1></div></div></div><p>Welcome to the Altus Metrum community! Our circuits and software reflect
our passion for both hobby rocketry and Free Software. We hope their
capabilities and performance will delight you in every way, but by
releasing all of our hardware and software designs under open licenses,
designed to use either a
lithium polymer battery or any other battery producing
between 4 and 12 volts, such as a rectangular 9V
-battery.</p></div></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="_easymini"></a>Chapter 4. EasyMini</h1></div></div></div><div class="figure"><a id="idm280"></a><p class="title"><strong>Figure 4.1. EasyMini Board</strong></p><div class="figure-contents"><div class="mediaobject"><img src="easymini-top.jpg" width="495" alt="easymini-top.jpg" /></div></div></div><br class="figure-break" /><p>EasyMini is built on a 0.8 inch by 1½ inch circuit board. It’s
+battery.</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_using_packet_link_mode"></a>3.10. Using Packet Link Mode</h2></div></div></div><p>All AltusMetrum flight computers that have a radio can
+communicate with the ground station software for
+configuration and other operations using the Packet
+Link mode. This uses radio communication instead of a
+USB cable. To set this up, the ground station software
+must be configured to the correct data rate, frequency
+and callsign.</p><p>You can monitor Packet Link mode from TeleBT or
+TeleDongle by watching the LEDs. Each time the device
+transmits, the red LED will flash. When the link is
+busy, or when the link is not working, the device will
+transmit 10 times per second, so the LED will flash
+rapidly. When the link is working and there is no data
+to send, the link will flash once per second, and the
+LED will flash more slowly.</p></div></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="_easymini"></a>Chapter 4. EasyMini</h1></div></div></div><div class="figure"><a id="idm284"></a><p class="title"><strong>Figure 4.1. EasyMini Board</strong></p><div class="figure-contents"><div class="mediaobject"><img src="easymini-top.jpg" width="495" alt="easymini-top.jpg" /></div></div></div><br class="figure-break" /><p>EasyMini is built on a 0.8 inch by 1½ inch circuit board. It’s
designed to fit in a 24mm coupler tube.</p><p>You usually don’t need to configure EasyMini at all; it’s set
up to do dual-deployment with an event at apogee to separate
the airframe and deploy a drogue and another event at 250m
above, the top four have connections for the main pyro
circuit and an external battery and the bottom four have
connections for the apogee pyro circuit and the power
-switch. Counting from the left, the connections are as follows:</p><div class="table"><a id="idm292"></a><p class="title"><strong>Table 4.1. EasyMini Screw Terminals</strong></p><div class="table-contents"><table class="table" summary="EasyMini Screw Terminals" cellpadding="4px" style="border-collapse: collapse;border-top: 1px solid #78079a; border-bottom: 1px solid #78079a; border-left: 1px solid #78079a; border-right: 1px solid #78079a; "><colgroup><col class="col_1" /><col class="col_2" /><col class="col_3" /></colgroup><thead><tr><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Terminal #</th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Terminal Name</th><th style="border-bottom: 1px solid #78079a; " align="left" valign="top">Description</th></tr></thead><tbody><tr><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Top 1</p></td><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Main -</p></td><td style="border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Main pyro channel connection to pyro circuit</p></td></tr><tr><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Top 2</p></td><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Main</p></td><td style="border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Main pyro channel common connection to battery</p></td></tr><tr><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Top 3</p></td><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Battery</p></td><td style="border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Positive external battery terminal</p></td></tr><tr><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Top 4</p></td><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Battery -</p></td><td style="border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Negative external battery terminal</p></td></tr><tr><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Bottom 1</p></td><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Apogee -</p></td><td style="border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Apogee pyro channel connection to pyro circuit</p></td></tr><tr><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Bottom 2</p></td><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Apogee</p></td><td style="border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Apogee pyro channel common connection to battery</p></td></tr><tr><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Bottom 3</p></td><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Switch Output</p></td><td style="border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Switch connection to flight computer</p></td></tr><tr><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>Bottom 4</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>Switch Input</p></td><td style="" align="left" valign="top"><p>Switch connection to positive battery terminal</p></td></tr></tbody></table></div></div><br class="table-break" /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_connecting_a_battery_to_easymini"></a>4.2. Connecting A Battery To EasyMini</h2></div></div></div><p>There are two possible battery connections on
+switch. Counting from the left, the connections are as follows:</p><div class="table"><a id="idm296"></a><p class="title"><strong>Table 4.1. EasyMini Screw Terminals</strong></p><div class="table-contents"><table class="table" summary="EasyMini Screw Terminals" cellpadding="4px" style="border-collapse: collapse;border-top: 1px solid #78079a; border-bottom: 1px solid #78079a; border-left: 1px solid #78079a; border-right: 1px solid #78079a; "><colgroup><col class="col_1" /><col class="col_2" /><col class="col_3" /></colgroup><thead><tr><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Terminal #</th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Terminal Name</th><th style="border-bottom: 1px solid #78079a; " align="left" valign="top">Description</th></tr></thead><tbody><tr><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Top 1</p></td><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Main -</p></td><td style="border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Main pyro channel connection to pyro circuit</p></td></tr><tr><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Top 2</p></td><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Main</p></td><td style="border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Main pyro channel common connection to battery</p></td></tr><tr><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Top 3</p></td><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Battery</p></td><td style="border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Positive external battery terminal</p></td></tr><tr><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Top 4</p></td><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Battery -</p></td><td style="border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Negative external battery terminal</p></td></tr><tr><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Bottom 1</p></td><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Apogee -</p></td><td style="border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Apogee pyro channel connection to pyro circuit</p></td></tr><tr><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Bottom 2</p></td><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Apogee</p></td><td style="border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Apogee pyro channel common connection to battery</p></td></tr><tr><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Bottom 3</p></td><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Switch Output</p></td><td style="border-bottom: 1px solid #78079a; " align="left" valign="top"><p>Switch connection to flight computer</p></td></tr><tr><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>Bottom 4</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>Switch Input</p></td><td style="" align="left" valign="top"><p>Switch connection to positive battery terminal</p></td></tr></tbody></table></div></div><br class="table-break" /></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_connecting_a_battery_to_easymini"></a>4.2. Connecting A Battery To EasyMini</h2></div></div></div><p>There are two possible battery connections on
EasyMini. You can use either method; both feed
through the power switch terminals.</p><p>One battery connection is the standard Altus Metrum
white JST plug. This mates with single-cell Lithium
you’d like to see that we aren’t already working on,
and maybe we’ll get excited about it too…</p><p>Watch our <a class="ulink" href="http://altusmetrum.org/" target="_top">web site</a> for
more news and information as our family of products
-evolves!</p></div></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="_altosui"></a>Chapter 7. AltosUI</h1></div></div></div><div class="figure"><a id="idm411"></a><p class="title"><strong>Figure 7.1. AltosUI Main Window</strong></p><div class="figure-contents"><div class="mediaobject"><img src="altosui.png" width="414" alt="altosui.png" /></div></div></div><br class="figure-break" /><p>The AltosUI program provides a graphical user interface for
+evolves!</p></div></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a id="_altosui"></a>Chapter 7. AltosUI</h1></div></div></div><div class="figure"><a id="idm415"></a><p class="title"><strong>Figure 7.1. AltosUI Main Window</strong></p><div class="figure-contents"><div class="mediaobject"><img src="altosui.png" width="414" alt="altosui.png" /></div></div></div><br class="figure-break" /><p>The AltosUI program provides a graphical user interface for
interacting with the Altus Metrum product family. AltosUI can
monitor telemetry data, configure devices and many other
tasks. The primary interface window provides a selection of
flash memory.</p><p>Note that telemetry files will generally produce poor graphs
due to the lower sampling rate and missed telemetry packets.
Use saved flight data in .eeprom files for graphing where possible.</p><p>Once a flight record is selected, a window with multiple tabs is
-opened.</p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_flight_graph"></a>7.3.1. Flight Graph</h3></div></div></div><div class="figure"><a id="idm438"></a><p class="title"><strong>Figure 7.2. Flight Data Graph</strong></p><div class="figure-contents"><div class="mediaobject"><img src="graph.png" width="495" alt="graph.png" /></div></div></div><br class="figure-break" /><p>By default, the graph contains acceleration (blue),
+opened.</p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_flight_graph"></a>7.3.1. Flight Graph</h3></div></div></div><div class="figure"><a id="idm442"></a><p class="title"><strong>Figure 7.2. Flight Data Graph</strong></p><div class="figure-contents"><div class="mediaobject"><img src="graph.png" width="495" alt="graph.png" /></div></div></div><br class="figure-break" /><p>By default, the graph contains acceleration (blue),
velocity (green) and altitude (red).</p><p>The graph can be zoomed into a particular area by
clicking and dragging down and to the right. Once
zoomed, the graph can be reset by clicking and
clicking and dragging allows the graph to be panned.
The right mouse button causes a pop-up menu to be
displayed, giving you the option save or print the
-plot.</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_configure_graph"></a>7.3.2. Configure Graph</h3></div></div></div><div class="figure"><a id="idm449"></a><p class="title"><strong>Figure 7.3. Flight Graph Configuration</strong></p><div class="figure-contents"><div class="mediaobject"><img src="graph-configure.png" width="495" alt="graph-configure.png" /></div></div></div><br class="figure-break" /><p>This selects which graph elements to show, and, at the
+plot.</p></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_configure_graph"></a>7.3.2. Configure Graph</h3></div></div></div><div class="figure"><a id="idm453"></a><p class="title"><strong>Figure 7.3. Flight Graph Configuration</strong></p><div class="figure-contents"><div class="mediaobject"><img src="graph-configure.png" width="495" alt="graph-configure.png" /></div></div></div><br class="figure-break" /><p>This selects which graph elements to show, and, at the
very bottom. It also lets you configure how
the graph is drawn:</p><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
Whether to use metric or imperial units
accelerometers always compute both speed and
acceleration from barometric data. A larger
value smooths the data more.
-</li></ul></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_flight_statistics"></a>7.3.3. Flight Statistics</h3></div></div></div><div class="figure"><a id="idm468"></a><p class="title"><strong>Figure 7.4. Flight Statistics</strong></p><div class="figure-contents"><div class="mediaobject"><img src="graph-stats.png" width="495" alt="graph-stats.png" /></div></div></div><br class="figure-break" /><p>Shows overall data computed from the flight.</p></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_export_data"></a>7.4. Export Data</h2></div></div></div><p>This tool takes the raw data files and makes them
+</li></ul></div></div><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_flight_statistics"></a>7.3.3. Flight Statistics</h3></div></div></div><div class="figure"><a id="idm472"></a><p class="title"><strong>Figure 7.4. Flight Statistics</strong></p><div class="figure-contents"><div class="mediaobject"><img src="graph-stats.png" width="495" alt="graph-stats.png" /></div></div></div><br class="figure-break" /><p>Shows overall data computed from the flight.</p></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_export_data"></a>7.4. Export Data</h2></div></div></div><p>This tool takes the raw data files and makes them
available for external analysis. When you select this
button, you are prompted to select a flight data file,
which can be either a .eeprom or .telem. The .eeprom
each field separated by a comma and at least one
space. All of the sensor values are converted to
standard units, with the barometric data reported in
-both pressure, altitude and height above pad units.</p></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_configure_altimeter"></a>7.5. Configure Altimeter</h2></div></div></div><div class="figure"><a id="idm486"></a><p class="title"><strong>Figure 7.5. Altimeter Configuration</strong></p><div class="figure-contents"><div class="mediaobject"><img src="configure-altimeter.png" width="324" alt="configure-altimeter.png" /></div></div></div><br class="figure-break" /><p>Select this button and then select an altimeter.</p><p>The first few lines of the dialog provide information about the
+both pressure, altitude and height above pad units.</p></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_configure_altimeter"></a>7.5. Configure Altimeter</h2></div></div></div><div class="figure"><a id="idm490"></a><p class="title"><strong>Figure 7.5. Altimeter Configuration</strong></p><div class="figure-contents"><div class="mediaobject"><img src="configure-altimeter.png" width="324" alt="configure-altimeter.png" /></div></div></div><br class="figure-break" /><p>Select this button and then select an altimeter.</p><p>The first few lines of the dialog provide information about the
connected device, including the product name,
software version and hardware serial number. Below that are the
individual configuration entries.</p><p>At the bottom of the dialog, there are four buttons:</p><div class="variablelist"><dl class="variablelist"><dt><span class="term">
airframe, having all of them sound at the same
frequency can be confusing. This parameter
lets you adjust the base beeper frequency
-value.</p></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_configure_altosui"></a>7.6. Configure AltosUI</h2></div></div></div><div class="figure"><a id="idm558"></a><p class="title"><strong>Figure 7.6. Configure AltosUI Dialog</strong></p><div class="figure-contents"><div class="mediaobject"><img src="configure-altosui.png" width="216" alt="configure-altosui.png" /></div></div></div><br class="figure-break" /><p>This button presents a dialog so that you can
+value.</p></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_configure_altosui"></a>7.6. Configure AltosUI</h2></div></div></div><div class="figure"><a id="idm562"></a><p class="title"><strong>Figure 7.6. Configure AltosUI Dialog</strong></p><div class="figure-contents"><div class="mediaobject"><img src="configure-altosui.png" width="216" alt="configure-altosui.png" /></div></div></div><br class="figure-break" /><p>This button presents a dialog so that you can
configure the AltosUI global settings.</p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_log_directory"></a>7.6.1. Log Directory</h3></div></div></div><p>AltosUI logs all telemetry data and saves all
flash data to this directory. This
directory is also used as the staring point
programmed directly
over USB (self programming). Please read
the directions for flashing devices in
-<a class="xref" href="#_updating_device_firmware" title="Appendix C. Updating Device Firmware">Appendix C, <em>Updating Device Firmware</em></a>.</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_fire_igniter"></a>7.8. Fire Igniter</h2></div></div></div><div class="figure"><a id="idm592"></a><p class="title"><strong>Figure 7.7. Fire Igniter Window</strong></p><div class="figure-contents"><div class="mediaobject"><img src="fire-igniter.png" width="108" alt="fire-igniter.png" /></div></div></div><br class="figure-break" /><p>This activates the igniter circuits in the flight
+<a class="xref" href="#_updating_device_firmware" title="Appendix C. Updating Device Firmware">Appendix C, <em>Updating Device Firmware</em></a>.</p></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_fire_igniter"></a>7.8. Fire Igniter</h2></div></div></div><div class="figure"><a id="idm596"></a><p class="title"><strong>Figure 7.7. Fire Igniter Window</strong></p><div class="figure-contents"><div class="mediaobject"><img src="fire-igniter.png" width="108" alt="fire-igniter.png" /></div></div></div><br class="figure-break" /><p>This activates the igniter circuits in the flight
computer to help test recovery systems
deployment.</p><p>Selecting the <span class="emphasis"><em>Fire Igniter</em></span> button brings up the
usual device selection dialog. Pick the desired
descent.
Data are logged to
an on-board flash memory part, which can be partitioned into
-several equal-sized blocks, one for each flight.</p><div class="table"><a id="idm692"></a><p class="title"><strong>Table D.1. Data Storage on Altus Metrum altimeters</strong></p><div class="table-contents"><table class="table" summary="Data Storage on Altus Metrum altimeters" cellpadding="4px" style="border-collapse: collapse;border-top: 1px solid #78079a; border-bottom: 1px solid #78079a; border-left: 1px solid #78079a; border-right: 1px solid #78079a; "><colgroup><col class="col_1" /><col class="col_2" /><col class="col_3" /><col class="col_4" /></colgroup><thead><tr><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Device </th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Bytes per Sample </th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Total Storage </th><th style="border-bottom: 1px solid #78079a; " align="left" valign="top">Minutes at Full Rate</th></tr></thead><tbody><tr><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>EasyMini</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>16</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>1MB</p></td><td style="" align="left" valign="top"><p>10</p></td></tr></tbody></table></div></div><br class="table-break" /><p>The on-board flash is partitioned into separate flight logs,
+several equal-sized blocks, one for each flight.</p><div class="table"><a id="idm696"></a><p class="title"><strong>Table D.1. Data Storage on Altus Metrum altimeters</strong></p><div class="table-contents"><table class="table" summary="Data Storage on Altus Metrum altimeters" cellpadding="4px" style="border-collapse: collapse;border-top: 1px solid #78079a; border-bottom: 1px solid #78079a; border-left: 1px solid #78079a; border-right: 1px solid #78079a; "><colgroup><col class="col_1" /><col class="col_2" /><col class="col_3" /><col class="col_4" /></colgroup><thead><tr><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Device </th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Bytes per Sample </th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Total Storage </th><th style="border-bottom: 1px solid #78079a; " align="left" valign="top">Minutes at Full Rate</th></tr></thead><tbody><tr><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>EasyMini</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>16</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>1MB</p></td><td style="" align="left" valign="top"><p>10</p></td></tr></tbody></table></div></div><br class="table-break" /><p>The on-board flash is partitioned into separate flight logs,
each of a fixed maximum size. Increase the maximum size of
each log and you reduce the number of flights that can be
stored. Decrease the size and you can store more flights.</p><p>Configuration data is also stored in the flash memory on
from the flight computer before it fills up. The flight
computer will still successfully control the flight even if it
cannot log data, so the only thing you will lose is the data.</p></div><div class="appendix"><div class="titlepage"><div><div><h1 class="title"><a id="_altus_metrum_hardware_specifications"></a>Appendix E. Altus Metrum Hardware Specifications</h1></div></div></div><p>Here’s the full set of Altus Metrum products, both in
-production and retired.</p><div class="table"><a id="idm723"></a><p class="title"><strong>Table E.1. Altus Metrum Flight Computer Electronics</strong></p><div class="table-contents"><table class="table" summary="Altus Metrum Flight Computer Electronics" cellpadding="4px" style="border-collapse: collapse;border-top: 1px solid #78079a; border-bottom: 1px solid #78079a; border-left: 1px solid #78079a; border-right: 1px solid #78079a; "><colgroup><col class="col_1" /><col class="col_2" /><col class="col_3" /><col class="col_4" /><col class="col_5" /><col class="col_6" /><col class="col_7" /><col class="col_8" /></colgroup><thead><tr><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Device </th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"> Barometer </th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"> Z-axis accel </th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"> GPS </th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"> 3D sensors </th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"> Storage </th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"> RF Output </th><th style="border-bottom: 1px solid #78079a; " align="left" valign="top"> Battery</th></tr></thead><tbody><tr><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>EasyMini v1.0</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>MS5607 30km (100k')</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>-</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>-</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>-</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>1MB</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>-</p></td><td style="" align="left" valign="top"><p>3.7-12V</p></td></tr></tbody></table></div></div><br class="table-break" /><p></p><div class="table"><a id="idm763"></a><p class="title"><strong>Table E.2. Altus Metrum Flight Computer Mechanical Components</strong></p><div class="table-contents"><table class="table" summary="Altus Metrum Flight Computer Mechanical Components" cellpadding="4px" style="border-collapse: collapse;border-top: 1px solid #78079a; border-bottom: 1px solid #78079a; border-left: 1px solid #78079a; border-right: 1px solid #78079a; "><colgroup><col class="col_1" /><col class="col_2" /><col class="col_3" /><col class="col_4" /><col class="col_5" /><col class="col_6" /></colgroup><thead><tr><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Device</th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Connectors</th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Screw Terminals</th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Width</th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Length</th><th style="border-bottom: 1px solid #78079a; " align="left" valign="top">Tube Size</th></tr></thead><tbody><tr><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>EasyMini</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>Debug USB Battery</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>Apogee pyro Main pyro Battery</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>0.8 inch (2.03cm)</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>1½ inch (3.81cm)</p></td><td style="" align="left" valign="top"><p>24mm coupler</p></td></tr></tbody></table></div></div><br class="table-break" /></div><div class="appendix"><div class="titlepage"><div><div><h1 class="title"><a id="_release_notes"></a>Appendix F. Release Notes</h1></div></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_release_notes_for_version_1_8_6"></a>F.1. Release Notes for Version 1.8.6</h2></div></div></div><p>Version 1.8.6</p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_altos"></a>F.1.1. AltOS</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
+production and retired.</p><div class="table"><a id="idm727"></a><p class="title"><strong>Table E.1. Altus Metrum Flight Computer Electronics</strong></p><div class="table-contents"><table class="table" summary="Altus Metrum Flight Computer Electronics" cellpadding="4px" style="border-collapse: collapse;border-top: 1px solid #78079a; border-bottom: 1px solid #78079a; border-left: 1px solid #78079a; border-right: 1px solid #78079a; "><colgroup><col class="col_1" /><col class="col_2" /><col class="col_3" /><col class="col_4" /><col class="col_5" /><col class="col_6" /><col class="col_7" /><col class="col_8" /></colgroup><thead><tr><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Device </th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"> Barometer </th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"> Z-axis accel </th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"> GPS </th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"> 3D sensors </th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"> Storage </th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"> RF Output </th><th style="border-bottom: 1px solid #78079a; " align="left" valign="top"> Battery</th></tr></thead><tbody><tr><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>EasyMini v1.0</p></td><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>MS5607 30km (100k')</p></td><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>-</p></td><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>-</p></td><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>-</p></td><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>1MB</p></td><td style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top"><p>-</p></td><td style="border-bottom: 1px solid #78079a; " align="left" valign="top"><p>3.7-12V</p></td></tr><tr><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>EasyMini v2.0</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>MS5607 30km (100k')</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>-</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>-</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>-</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>1MB</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>-</p></td><td style="" align="left" valign="top"><p>3.7-12V</p></td></tr></tbody></table></div></div><br class="table-break" /><p></p><div class="table"><a id="idm784"></a><p class="title"><strong>Table E.2. Altus Metrum Flight Computer Mechanical Components</strong></p><div class="table-contents"><table class="table" summary="Altus Metrum Flight Computer Mechanical Components" cellpadding="4px" style="border-collapse: collapse;border-top: 1px solid #78079a; border-bottom: 1px solid #78079a; border-left: 1px solid #78079a; border-right: 1px solid #78079a; "><colgroup><col class="col_1" /><col class="col_2" /><col class="col_3" /><col class="col_4" /><col class="col_5" /><col class="col_6" /></colgroup><thead><tr><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Device</th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Connectors</th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Screw Terminals</th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Width</th><th style="border-right: 1px solid #78079a; border-bottom: 1px solid #78079a; " align="left" valign="top">Length</th><th style="border-bottom: 1px solid #78079a; " align="left" valign="top">Tube Size</th></tr></thead><tbody><tr><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>EasyMini</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>Debug USB Battery</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>Apogee pyro Main pyro Battery</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>0.8 inch (2.03cm)</p></td><td style="border-right: 1px solid #78079a; " align="left" valign="top"><p>1½ inch (3.81cm)</p></td><td style="" align="left" valign="top"><p>24mm coupler</p></td></tr></tbody></table></div></div><br class="table-break" /></div><div class="appendix"><div class="titlepage"><div><div><h1 class="title"><a id="_release_notes"></a>Appendix F. Release Notes</h1></div></div></div><div class="section"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="_release_notes_for_version_1_8_6"></a>F.1. Release Notes for Version 1.8.6</h2></div></div></div><p>Version 1.8.6</p><div class="section"><div class="titlepage"><div><div><h3 class="title"><a id="_altos"></a>F.1.1. AltOS</h3></div></div></div><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
Use maximum of 64 previous tilt values in pyro tilt tests
</li><li class="listitem">
Eliminate 100m height requirement for coast detection