
This simple dust sensor is a great way to add basic particulate sensing to your next project. It's not as fully featured as our PM2.5 I2C/UART-based sensors, with just a single analog voltage output.
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.
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 |
Analog · 5V through 150 ohm resistor · 0V / GND
Confirm the data interface matches your host board.
Module pins: Blue wire, Red wire, Yellow wire, Green wire, Black wire. Schematik maps them to your board in the app.
MQ-2 Gas Sensor visual preview
MQ-3 Gas Sensor visual preview
MQ-135 Gas Sensor visual preview
Grove - Air quality sensor visual previewChoose between MQ gas sensors, VOC/eCO2 indoor-air sensors, true CO2 modules and particulate sensors without treating every air-quality breakout as the same detector.
Sensors · Gas & air-quality sensors · 31 parts
Gravity: DHT11 Temperature & Humidity Sensor For Arduino visual preview
MIKROE DHT22 2 Click visual preview
MIKROE DHT22 Click visual preview
DHT20 - AHT20 Pin Module - I2C Temperature and Humidity Sensor visual previewDHT11, DHT22/AM2302, and DHT20/AHT20 sensors solve the same broad job, but only some are acceptable substitutes in the same circuit.
Sensors · Environment sensors · 19 parts
Gravity: DHT11 Temperature & Humidity Sensor For Arduino visual preview
Fermion: ENS160+BME280 Environmental Sensor - TVOC, eCO2, Temp & Humidity (Breakout) visual preview
MIKROE DHT22 2 Click visual preview
MIKROE DHT22 Click visual previewChoose between temperature-only, temperature/humidity, pressure and indoor air-quality modules without treating every environmental sensor as a drop-in substitute.
Sensors · Environment sensors · 8 parts
Photo cell (CdS photoresistor) visual preview
TCS3200 Color Sensor visual preview
Adafruit APDS9999 Proximity, Lux Light & Color Sensor visual preview
Adafruit AS7341 10-Channel Light / Color Sensor Breakout visual previewPhotoresistors and color sensors both respond to light, but they expose very different signals and are not sensible drop-in substitutes.
Sensors · Light & color sensors · 7 parts