Circuit Diagram. The circuit diagram for interfacing DHT11 temperature and humidity sensor with ESP32 is given below. Interfacing the DHT11 sensor with ESP32 is very simple as it has only three pins.

IoT-based Smart Home Automation using the new Blynk 2.0 ESP32 LDR & temperature sensor to control an 8-channel relay module from the manual switch, ... After that, I have soldered all the components ...