This project uses the ESP8266 WiFi microcontroller (NodeMCU) to implement a temperature monitoring and control system. A DHT-11 temperature + humidity sensor is used to monitor temperature conditions in an environment. Depending on the current conditions, a fan or heater will be switched on to maintain the desired temperature setpoint. Temperature/setpoint data is displayed locally on an OLED dispay as well as being sent to a cloud-based dashboard (Ubidots) over MQTT where it can be monitored remotely. The cloud dashboard also allows users to remotely change the desired setpoint and switch the fan or heater on/off manually.
