Tomáš
  • ATtiny84A microprocessor
  • BME280 sensor
  • RFM95W LoRa module

Project homepage:

http://www.iot-lab.org/blog/101/

code:

https://gitlab.com/iot-lab-org/ATtiny84_low_power_LoRa_node.git

PCB design:

https://easyeda.com/Leo/ATtiny84_LoRa_Environment_Node-d542dfbcc50d456c80869380bc979266