ESP32 with an MQ-135 gas sensor

ESP32 with an MQ_135

Hardware Setup:Gather the necessary components:ESP32 development boardMQ-135 gas sensor moduleJumper wiresBreadboard (optional)Power supply (3.3V or 5V)Resistor (e.g., 10kΩ)Connect the MQ-135 sensor to the ESP32:Connect the VCC pin of the sensor to the 3.3V or 5V output of the ESP32.Connect the GND pin of the sensor to the ground pin of the ESP32.Connect the output pin of the sensor (usually labeled "OUT") to an analog input pin on the ESP32...

Read more...