[[!meta title="MicroPeak"]]
-<center><img src="../logos/altusmetrum-oneline.svg" width="320"/></center>
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-- - -
<img src="../logos/micropeak-oneline.svg" height="100"/>
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# Introducing MicroPeak by AltusMetrum #
-Micropeak is a peak-recording barometric altimeter for precision model
+Micropeak is a barometric logging altimeter for precision model
rocketry altitude measurements.
-<a href="v0.1/micropeak-dime.jpg"><img
-src="v0.1/micropeak-dime-640.jpg"></a>
-
-Production units will be available from the
-[Garbee and Garbee](http://auric.gag.com) web
-store.
-
-## Documentation ##
-
-The MicroPeak manual is available in
-[html](../AltOS/doc/micropeak.html) and
-[pdf](../AltOS/doc/micropeak.pdf) formats.
-
-## Hardware Features ##
-
- * Measure ground pressure and peak altitude pressure.
- * Blue LED blinks out maximum height in decimeters.
- * 18mm x 14mm. 1.9g including battery.
- * Power switch.
-
-The CR1025 battery holder is mounted on the back side of the board, so there are no external wires or batteries to manage.
-
-## Software features ##
-
- * Saves last flight data to non-volatile memory.
- * Reports previous flight on power-on.
- * Automatically shuts down on landing to preserve battery.
-
-## Battery Holder ##
-
-MicroPeak includes an integrated battery holder on the back side of
-the circuit board.
-
-<a href="v0.1/micro-peak-back.jpg"><img
-src="v0.1/micro-peak-back-640.jpg"></a>
-
-## Developer View ##
-
-Here's a close-up view of the hardware
-
-<a href="v0.1/micropeak.jpg"><img src="v0.1/micropeak-640.jpg"></a>
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- * Hardware Features
- * [ATMEL ATtiny85](http://www.atmel.com/devices/attiny85.aspx) Microcontroller
- * 8K flash
- * 512B RAM
- * 512B EEPROM
- * SPI/I2C 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.
- * CR1025 Lithium Battery
- * 30mAh. Runs MicroPeak for 15 hours on the pad or in flight
- * Standard 6-pin AVR programming interface.
-
- * Software Features
- * Written in C
- * Samples pressure every 96ms
- * Detect boost with 4m altitude change
- * Exponential averaging filter to minimize transient effects.
-
- * Tools Used
- * [gEDA](http://www.gpleda.org/) for schematic capture and PCB layout
- * [GCC](http://gcc.gnu.org) as an AVR cross-compiler
-
- * 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)
-
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projects / web / altusmetrum / blobdiff