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Xavier c4e0d3f78b first commit
2022-10-08 12:32:56 +02:00
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README.md

RS41HUP (Ham Use Project)

Firmware for RS41 for HAM use
It is possible to recycle RS41-SGP sondes for amateur radio use without any electrical changes! You just have to build a new firmware (this one) and apply it via a cheap adaptor "ST-Linkv2". Modified sonde now transmits on defineable frequenca in 70cm band GPS and telemetry data in FSK RTTY format which is used by HAB projects and additionally it transmits APRS packets on a seperately defineable TX frequency.

Released under GPL v2

Windows:

Use: https://www.wyzbee.com/download/Utilities/Software/CoIDE-1.7.8.exe

And: https://launchpad.net/gcc-arm-embedded/5.0/5-2016-q3-update/+download/gcc-arm-none-eabi-5_4-2016q3-20160926-win32.exe

Linux:

Maybe you have to set correct path to gcc-arm-none-eabi in CMakeLists.txt.

cd into main folder

cmake .

make

Configuration

All configs in config.h

  • SEND_RTTY Optionally send RTTY packet every TX_DELAY ms
  • SEND_RTTY_<value> Include into the RTTY packet
  • RTTY_CALLSIGN RTTY callsign
  • RTTY_COMMENT RTTY comment
  • RTTY_WWL Send WWL instead of the RTTY comment
  • PAIR_COUNT World Wide Locator pairs (precision)
  • RTTY_FREQUENCY RTTY frequency in MHz
  • RTTY_DEVIATION RTTY shift configurable in 270Hz steps
  • RTTY_SPEED RTTY speed in bauds
  • RTTY_7BIT Use 7 bit RTTY
  • RTTY_USE_2_STOP_BITS Use 2 stop bits
  • SEND_APRS Optionally send APRS packet every TX_DELAY * RTTY_TO_APRS_RATIO ms
  • APRS_CALLSIGN APRS callsign, 6 characters. If your callsign is shorter add spaces
  • APRS_SSID APRS SSID
  • APRS_DISPLAY_TABLE APRS Display Table
  • APRS_DISPLAY_SYMBOL APRS Display Symbol
  • APRS_COMMENT APRS comment
  • APRS_FREQUENCY APRS frequency in MHz
  • RTTY_TO_APRS_RATIO Number of RTTY frames between each APRS frame
  • SEND_MORSE Optionally send Morse message every TX_DELAY * RTTY_TO_MORSE_RATIO ms
  • MORSE_PREFIX Start of the Morse message (DE )
  • SEND_MORSE_<value> Include into the Morse message
  • MORSE_SUFFIX Optional end of the Morse message (ar^)
  • MORSE_WPM Morse speed in words per minute
  • RTTY_TO_MORSE_RATIO Number of RTTY frames between each Morse message
  • TX_POWER Power 0-7, (7 means 42.95 mW@434.150 MHz measured on E4406A)
  • ALLOW_DISABLE_BY_BUTTON Allow disabling device using button
  • TX_DELAY Delay between RTTY frames in milliseconds
  • LED_ENABLED Optionally /disable LED blinking (takes effect after approx. 10 minutes)

Have a nice day ;)

Changelog

  • 14.12.2016 - Reverse engineeded connections, initial hard work, resulting in working RTTY by SQ7FJB
  • 07.01.2017 - GPS now using proprietiary UBLOX protocol, more elastic code to set working frequency by SQ5RWU
  • 23.01.2017 - Test APRS code, small fixes in GPS code by SQ5RWU
  • 06.06.2017 - APRS code fix, some code cleanup
  • June 2017 - starting with Linux support, making configuration more flexible by DF8OE
  • November 2018 by OK1TE
    • Optionally alter the RTTY comment with the World Wide Locator
    • Made the RTTY packet content configurable
    • Optionally turn off RTTY or APRS
    • Optionally turn off LED blinking
    • Added Morse (CW) support
  • 10.01.2020 - Configurable APRS Display Symbol

TODO

  • Adding support for EmbiTZ IDE
  • Adding support for platform independent IDE Eclipse
  • More APRS config options
  • Temperature and moisture sensor
  • Pressure sensor
  • implementing protocol for using external devices on extension header
  • Configuration via extension header (serial connection) without need for reflashing firmware
  • Possibly add configuration "wireless" using RFID loop present in sonde