Bresser 5-in-1/6-in-1/7-in-1 868 MHz Weather Sensor Radio Receiver based on ESP32 and RFM95W/SX1276 - sends data to a LoRaWAN Network (e.g. The Things Network)

Battery/solar-powered ESP32 TTN (LoraWAN) sensor for measuring temperature, humidity, air pressure and fine dust.

Bresser 868 MHz Weather Sensor Radio Receiver based on ESP32/RP2040 and SX1262/SX1276 - sends data to a LoRaWAN Network

Dustmap Air Quality Sensor Node based on SDS011

Enchant your rain barrel with LoRaWAN and The Things Network

LoRaWAN Node for Growatt PV-Inverter Modbus Data Interface

Dustnet Mapper Node for ttnmapper.org

An Arduino project to monitor a thermocouple and transmitting the value to The Things Network.