PIC APRS Beacon

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Revision as of 22:20, 1 May 2012 by Elijah (talk | contribs) (Created page with "This project was started as a fun experiment to see if an AFSK signal could be generated using only an 8 bit PIC and a resistor ladder network. Since this is now realized, th...")
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This project was started as a fun experiment to see if an AFSK signal could be generated using only an 8 bit PIC and a resistor ladder network. Since this is now realized, the additional features to make it a fully capable beacon will be implemented.

High Level System Requirements

  • Implementation should be simple and inexpensive
  • AX.25 packet capability for data transmission
  • Interface with a GPS using either ASCII NMEA or a binary protocol
  • On-board landing prediction based on wind data gathered during ascent
  • Logging
    • Data to be stored on on-board flash memory.
    • Board temperature
    • Battery voltage
  • Ability to configure volatile parameters via RS232 console
    • Call Sign & SSID
    • Time slotting
    • Status string

Hardware

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