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projects:firefly:fhalp-2

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FHALP-2

Components

  • GM862-GPS - got
  • Radio
    • Circuit Design Module - (Morse Beacon) - got
    • Radiometrix NX2 Module - (RTTY Transmitter) radiometrix
  • Premier DS-5080 - got
  • Camera Battery - ebay
  • Cutdown Circuit (based on a Mosfet) - got and built circuit
  • 3.7v Lipo Battery - sparkfun UK Supplier - got
  • GPS antenna - got
  • GSM antenna - Active Robots
  • uALFAT Data Logger - got

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
  • Build Morse Beacon
  • Sort out code especially cutdown code
  • Design Payload
  • Build Payload Casing
  • (Rig Camera)
  • Get Battery
  • Order new parts from RS
  • Finish RubyCocoa software
  • Setup GM862
  • Build Cutdown circuit

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.

Mission Badge

projects/firefly/fhalp-2.1199374021.txt.gz · Last modified: 2008/07/19 23:31 (external edit)

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