X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=MicroPeak%2Findex.mdwn;h=248492866f98d2675a6c5125ba38b9e7aaed7356;hb=880f9cd67a0811e71bbfd174abdda6cd7263aef4;hp=bf6e694fa048cdd9b490b8743c01eb129eb49f3d;hpb=603371fe647314b878f788bf10c59a68552b0989;p=web%2Faltusmetrum diff --git a/MicroPeak/index.mdwn b/MicroPeak/index.mdwn index bf6e694..2484928 100644 --- a/MicroPeak/index.mdwn +++ b/MicroPeak/index.mdwn @@ -4,7 +4,95 @@ # Introducing MicroPeak by AltusMetrum # Micropeak is a barometric logging altimeter for precision model -rocketry altitude measurements. +rocketry altitude measurements. -[[!inline pages="./releases/* and !*/Discussion and !*.html and !*.bz2 and !*.zip and !*.exe" show="10" rss="no" raw="yes" ]] + +Data download is available using the [MicroPeak USB adapter](../MicroPeakUSB). + +## Documentation ## + +The MicroPeak manual is available in +[html](../AltOS/doc/micropeak.html) and +[pdf](../AltOS/doc/micropeak.pdf) formats. + +## Software ## + +The MicroPeak application runs on Linux, Mac OS X and Windows. It +communicates with the [MicroPeak USB adapter](../MicroPeakUSB) to download and analyze +flight data. It's written in [Java](http://java.com) and offers the +same functionality and interface on all three platforms. It uses the +FTDI USB Serial drivers to communicate with the hardware. If you're +running Mac OS X or Windows, a compatible version of those drivers is +included with the software. You can also install a different from from +the [FTDI Driver](http://www.ftdichip.com/FTDrivers.htm) page. + +MicroPeak is part of the larger [AltOS](/AltOS) suite of software, which also +includes a dedicated [TeleGPS](/TeleGPS) application. + +### Available Versions ### + +[[!inline pages="./releases/* and !*/Discussion and !*.sh and !*.html and !*.bz2 and !*.zip and !*.exe and !*.dmg" show="10" rss="no" raw="yes" ]] + +## Hardware Features ## + + * Measure ground pressure and peak altitude pressure. + * Logs 48 seconds of flight data + * Orange 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. + + + +## Developer View ## + +Here's a close-up view of the hardware + + + + * 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 more than 40 hours on the pad or in flight + * [OSRAM LO T67K](http://catalog.osram-os.com/catalogue/catalogue.do?favOid=000000000002269f00090023&act=showBookmark) orange LED + * Standard 6-pin AVR programming interface. + + * Software Features + * Written in C + * Samples pressure every 96ms + * Delay 30s after power-on to finish airframe prep + * Detect boost with 30m 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) + +