The two modules are installed on the same building, one on the East side and one on the West side. Location: Athens, Greece. Hardware: ESP8266 running on nodeMCU firmware with DS18D20 sensor.

Esp8266 temprature sensor on Ioannina Greece

Biotopio temp sensor. Ierapetra - Greece

In this project, I use the microcontroller Arduino Uno Rev3 and the sensor DHT11. The results of the sensor (temperature and humidity) are sent to my ThingSpeak channel via the ESP8266 module which is connected with my WIFI network.

Environment temperature, humidity, atmospheric pressure, dew point, heat index @ Dionysos Greece + room temperature, humidity