Feinstaub-Sensor connected with LoRaWan by RFM95

based on the ESP8266 version of the community Stuttgart (Open Data Stuttgart) http://codefor.de/stuttgart/ build: http://luftdaten.info/feinstaubsensor-bauen/

used hardware

• microcontroller: ESP32 (DOIT)
• Feinstaubsensor: SDS011 http://inovafitness.com/en/Laser-PM2-5-Sensor-SDS011-35.html
• Temp/Hum: DHT22 (no resistor between Vcc & Data when powered by 3.3V!)
• LoRa Module: RFM95 on breadboard
• Battery Power Pack (10000mAh)

power supply

• powered via USB: 5V, Vin on board connected to SDS011

power measurement

running: 110 - 130mA waiting: 70mA (no sleep mode implemented)

remarks

• please read carefully the changes made in lmic/config.h
• and the compiling selections made for the board
• you need to install ESP32 in the Arduino IDE (link in code)
• Keys for ABP were separeted, structure explained
• at the end of the code the decoder for the TTN console is shown