Icetracker firmware for rover and base station 2022/3

see glacsweb.org for more details This mainly circuitpython code is designed to run the icetrackers we produced to monitor glaciers using Ublox M9P GNSS units. It does the following:

• wakes up the units at regular intervals (RTC enables the PSU)
• during GPS fixes the base feeds RTCM messages from the GPS to the radio
• when rovers get a fix they send the data back to the base
• at 12:00 and 24:00 the base sends all unsent data to the server in Southampton

Circuitpython

designed to run on circuitpython - tested on version 8 needs modified GPS library, temperature and DS2131 RTC libraries

Hardware

Uses Thing Plus SAMD51, Sparkfun M9P GPS, Adafruit FONA and XTSD flash/SD, DIGI SX868 radio. Sparkfun SWARM untested

Docs

To make html docs run ./make.bat html. Other formats can be made in a very similar way (run make.bat for options)