README.md
TODO list by priority:
[ ] footprint of RFM96W
[ ] footprint of GPS ]]>https://www.tme.eu/pl/details/org1411-pm04/moduly-gnss-gpsglonassbeidou/...]]>
[ ] GPS supply 1.8V
[ ] UART to AVR connection
[ ] micro USB for STM32 with ESD protection (just copy it from BluePill Schematic)
[ ] NTC - connection and divider
[ ] LiPo step-up
[ ] status LEDs
[ ] main power switch
[ ] estetics