projects:firefly:fhalp-2
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Table of Contents
FHALP-2
Components
- GM862-GPS - got
- Radio
- Circuit Design Module - (Morse Beacon) - got
- Radiometrix NX2 Module - (RTTY Transmitter) radiometrix
- Premier DS-5080 - got
- Cutdown Circuit (based on a Mosfet) - got and built circuit
- 3.7v Lipo Battery - sparkfun UK Supplier
- GPS antenna
- GSM antenna
Plan
- Downward facing camera
- Similar design to FHALP-1 with balsa wood cross struts however won't be in a square to accommodate the camera.
Things to do
- Design Payload
Order new parts from RS- Rig Camera
Build Cutdown circuit- Build Morse Beacon
- Build Rtty Module
Setup GM862- Get Battery
- Sort out code especially cutdown code
Finish RubyCocoa software- Design Payload
- Build Payload Casing
Radio
So the plan is to make a morse beacon that pulses on and off at 1Hz and then every minute the gm862-gps takes over and pulses out the time,lat,long and alt. To achieve this without using a complicated PIC I've got hold of some CMOS 555 ICs which will be set up to pulse the radio at 1Hz and the GM862 will pull the reset to ground and toggle the pin itself.
Links
- uALFAT-TF Data Logger - UART, I2c or SPI
projects/firefly/fhalp-2.1197848271.txt.gz · Last modified: 2008/07/19 23:31 (external edit)