Lora-TTNMapper-Heltec-v2

Summary

Code for a TTNMapper node with GPS running on a Heltec "WiFi Lora32 V2" node, based on Heltec-Wifi-Lora-32-TTN-Mapper by sistemasorp

Copyright and sources

Copyright (c) 2015 Thomas Telkamp and Matthijs Kooijman: https://github.com/matthijskooijman/arduino-lmic/blob/master/examples/ttn-abp/ttn-abp.ino
Copyright (c) 2018 sbiermann: https://github.com/sbiermann/Lora-TTNMapper-ESP32
Copyright (c) 2019 sistemasorp: https://github.com/sistemasorp/Heltec-Wifi-Lora-32-TTN-Mapper
Copyright (c) 2020 noppingen: https://github.com/noppingen/Lora-TTNMapper-Heltec-v2/

Modifications

More diag output on serial interface
Stay quiet, LoRa TX only if GPS HDOP is below a certain limit
Vext is initialized during start, you may connect the GPS to Vext
Display of distance to your mapped "home" gateway

Get it running

Add required libraries
Set TTN NWKSKEY, APPKSKEY and DEVADDR
Set GPS_RX and GPS_TX
Set gateway GPS coordinates to get the distance displayed on your way
Set TX_INTERVAL, HDOP_MAX and TX_WAIT_INTERVAL
Change bands if you are not in the EU868 region
Print my case: Thingiverse

TTN

Activation method is set to ABP
TTN decoder script is here

Images