Connect the AOUT line of the MQ-3 sensor to the Analog pin of the UNO as shown in this diagram. Step 3: Connect the LED Indicator By monitoring the analog input, you can adjust the brightness of the LED to reflect the concentration of the alcohol detected by the sensor. This allows fo...
upm1.6.0 Sensor/Actuator repository for libmraa (v1.9.0) Public Member Functions synchronized voiddelete() MQ3(int gasPin) Stringname() Public Member Functions inherited fromGas Protected Member Functions MQ3(long cPtr, boolean cMemoryOwn) ...