Weather condition in Humenne, Slovakia. Measured by BME280. Data sended by IOT LPWAN SigFox Node UART Modem 868MHz
DataLogger based on Arduino with 434MHz radio and BME280 sensor supplied by 3.6V battery for the transmitter and RaspberryPiZeroW & CC1101 with Python program for receiver.
Temperature, pressure and humidity in Weyher in der Pfalz, Germany. Solar powered Wemos with BME280 connected to public Wifi "Freifunk Weyher"
Wemos D1 mini combined with BME280 sensor measuring temperature, relative humidity and air pressure. Location: Saxony, Germany
bme280 -> PIC18F26K22 -> ESP8266 DCDC: Akizuki AE-XCL101C331BR-G 3.3V + 1000uF