Using ESP8266 with Sensirion SCD30 and BME280 to monitor CO2 level, air humidity and temperature.
Monitoring internal and external greenhouse environment with ESP32 and 2 x BME280. ESP32 is running Annex RDS.
Weather station located in Uchaly (Russia). Hardware used: NodeMCU3 (ESP8266) + SHT31 + BME280 sensor.