+[[!meta title="TeleMega"]]
# TeleMega
This is a high-end recording dual-deploy altimeter for high power model
from vertical.
For the latest TeleMega firmware and related ground station software, please
-visit the [AltOS](../AltOS) page on this site. TeleMega requires AltOS
-version 1.3 or later.
+visit the [AltOS](../AltOS) page on this site. TeleMega v4.0 requires AltOS
+version 1.9.2 or later.
-These are photos of the current production version 1.0:
+These are photos of production version 1.0 .. maybe someday we'll take photos
+of a newer version (?) .. but they look similar:
<a href="v1.0/telemega-v1.0-top.jpg"> <img src="v1.0/telemega-v1.0-top-thumb.jpg"></a>
<a href="v1.0/telemega-v1.0-bottom.jpg"> <img src="v1.0/telemega-v1.0-bottom-thumb.jpg"></a>
including angle from vertical (for safety in staging and air start flights).
* 70cm ham-band transceiver for telemetry downlink
* Barometric pressure sensor good to 100k feet MSL
-* 1-axis 105-g accelerometer for motor characterization
+* 1-axis 200-g accelerometer for motor characterization
* 3-axis 16-g accelerometer for gyro calibration
* 3-axis 2000 deg/sec gyros
* 3-axis magnetic sensor
* On-board, integrated GPS receiver
* On-board non-volatile memory for flight data storage
+* Can drive up to 4 RC-style servos
* USB for power, configuration, and data recovery
* Integrated support for LiPo rechargeable batteries
* User choice of pyro battery configuration, can use primary LiPo or any
### Developer View ###
-* Hardware Features of v0.3
+* Hardware Features of v2.0
* ST Micros [STM32L151](http://www.st.com/internet/mcu/product/248821.jsp) ARM Cortex M3 based Microcontroller
- * TI [CC1120](http://www.ti.com/product/cc1120) High Performance RF Transceiver for Narrowband Systems
+ * TI [CC1200](http://www.ti.com/product/cc1200) High Performance RF Transceiver for Narrowband Systems
* 150mA 3.3V LDO regulator
- * [Winbond W25Q64CV](http://www.winbond.com/hq/enu/ProductAndSales/ProductLines/FlashMemory/SerialFlash/W25Q64CV.htm) serial flash memory
- * [u-blox](http://www.u-blox.com/) MAX-7Q GPS receiver
+ * [Winbond W25Q64FV](http://www.winbond.com/hq/product/code-storage-flash-memory/serial-nor-flash/?__locale=en&partNo=W25Q64FV) serial flash memory
+ * [u-blox](http://www.u-blox.com/) MAX-8Q GPS receiver
* on-board TaoGlas passive patch antenna
* async serial interface
* Measurement Specialties [MS5607](http://www.meas-spec.com/product/t_product.aspx?id=8499) Micro Altimeter Module
* Wide range — 120kPa to 1kPa (approximately -1500m to 31000m)
* High precision — 2.4Pa resolution (approximately 20cm at sea level)
* Factory calibrated.
- * Freescale [MMA6555](http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MMA65xx&fsrch=1&sr=1) Single Axis SPI Intertial Sensor
- * +- 105g full-scale
- * on-chip 12-bit digitizer
- * Invensense [MPU-6000](http://invensense.com/mems/gyro/mpu6050.html) Six-Axis MEMS Motion Tracking Device
+ * Analog Devices [ADXL375](https://www.analog.com/en/products/adxl375.html) 3-Axis Digital MEMS Accelerometer
+ * +- 200g full-scale
+ * on-chip digitizer
+ * Bosch [BMX160](https://www.bosch-sensortec.com/products/motion-sensors/absolute-orientation-sensors/absolute-orientation-sensors-bmx160.html) Absolute Orientation Sensor
* tri-axis angular rate sensor up to 2000 degrees/second
* tri-axis accelerometer with +- 16g range
- * three on-chip ADCs for true simultaneous sampling of all axes
- * Honeywell HMC5883L 3-axis magnetic (compass) sensor
+ * tri-axis magnetic sensor
* Software Features
* Written mostly in C with some ARM assembler
* Runs from on-chip flash, uses on-chip RAM, stores flight data to serial flash
* USB serial emulation for "console" interface
* Tools Used
- * [gEDA](http://www.gpleda.org/) for schematic capture and PCB layout
+ * [lepton-eda](https://github.com/lepton-eda/lepton-eda) for schematic capture
+ * [pcb-rnd](http://repo.hu/projects/pcb-rnd/) for PCB layout
* Licenses
* The hardware is licensed under the [TAPR](http://www.tapr.org) [Open Hardware License](http://www.tapr.org/ohl.html)
* The software is licensed [GPL version 2](http://www.gnu.org/licenses/old-licenses/gpl-2.0.html)
[pdf](../AltOS/doc/altusmetrum.pdf) formats.
An outline of the board with drill hole locations is available in
-[pdf](../Documents/telemega-outline.pdf] format.
+[pdf](../Documents/telemega-outline.pdf) format.
-The hardware design current gEDA files are available from
+The current hardware design files are available from
[git.gag.com](http://git.gag.com) in the project
[hw/telemega](http://git.gag.com/?p=hw/telemega;a=summary).
For those who don't have ready access to the gEDA suite, here are pdf snapshots
-of the files for Production PCB version 1.0 in more easily readable form:
+of the files for Production PCB version 3.0 in more easily readable form:
-* [schematic](v1.0/telemega-sch.pdf)
-* [pcb artwork](v1.0/telemega-pcb.pdf)
-* [bill of materials](v1.0/partslist.csv)
+* [schematic](v3.0/telemega-sch.pdf)
+* [pcb artwork](v3.0/telemega-pcb.pdf)
+* [bill of materials](v3.0/partslist.csv)
-## Future Plans ##
+## [History of TeleMega](history) ##
-Version 1.0 is now available for purchase.
projects / web / altusmetrum / blobdiff