
Sharp GP2Y1014AU0F optical dust sensor with LED and analog voltage output proportional to particulate concentration. Single analog output — not I2C; pair with an ADC-equipped microcontroller.
Sensor LED supply lead. Adafruit product page says connect the blue wire to 5V through the included 150 ohm resistor.
Ground lead. Adafruit product page says connect yellow wire to ground.
Ground lead. Adafruit product page says connect green wire to ground.
LED control input. Adafruit product page says connect the white wire to a digital output to control the LED.
Dust signal output. Adafruit product page says connect the black wire to an analog input, and describes the sensor as giving a single analog voltage output where higher voltage means dustier air.
I2C · Analog · UART · 3.3 – 5 V · Breakout
Waveshare lists MQ-2 for combustible gases and smoke, MQ-3 for alcohol, and MQ-135 for mixed indoor pollutants such as NH3, NOx, alcohol,…
Module pins: Blue wire, Red wire, Yellow wire, Green wire, Black wire. Schematik maps them to your board in the app.
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Sensor power lead. Adafruit product page says connect the red wire to 5V.
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| Blue wire | power | Sensor LED supply lead. Adafruit product page says connect the blue wire to 5V through the included 150 ohm resistor. | 5V through 150 ohm resistor | |
| Yellow wire | ground | Ground lead. Adafruit product page says connect yellow wire to ground. | 0V / GND | |
| Green wire | ground | Ground lead. Adafruit product page says connect green wire to ground. | 0V / GND | |
| White wire | digital | LED control input. Adafruit product page says connect the white wire to a digital output to control the LED. | ||
| Black wire | analog | Dust signal output. Adafruit product page says connect the black wire to an analog input, and describes the sensor as giving a single analog voltage output where higher voltage means dustier air. | analog output maxes out at 3.6V; dust range stated as 0 to 0.5 mg/m3 | |
| Red wire | power | Sensor power lead. Adafruit product page says connect the red wire to 5V. | 5V |
Fermion: ENS160+BME280 Environmental Sensor (Breakout)