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'''Documentation notice:''' This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.<br />
<br />
== Summary ==<br />
The Waveshare Dust Sensor uses an onboard GP2Y1010AU0F and provides an analog output that is proportional to dust density. The module supports a wide supply range via an embedded voltage boost circuit.<br />
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== Related products at JW Tech ==<br />
* [https://shop.jw-tech.eu/p/WSAL10500 WSAL10500 – Dust Sensor]<br />
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== Technical overview ==<br />
* Sensitivity: 0.5 V per 100 µg/m³; measurement range up to 500 µg/m³.<br />
* Supply voltage: 2.5 V to 5.5 V; maximum operating current 20 mA.<br />
* Operating temperature: −10 °C to 65 °C; storage temperature: −20 °C to 80 °C.<br />
* Dimensions: 46 mm × 45.5 mm × 21 mm; mounting hole diameter 2.0 mm; air hole 9.0 mm.<br />
* Control principle: set ILED HIGH, wait 0.28 ms, then sample AOUT because the output reaches steady state after 0.28 ms.<br />
* Raspberry Pi Pico connection example: VCC to 3.3 V, GND to GND, AOUT to GP26, ILED to GP22.<br />
* Arduino UNO connection example: VCC to 5 V, GND to GND, AOUT to A0, ILED to D7.<br />
* STM32F103R example: AOUT to GPIOA.6, ILED to GPIOA.7; USART2 serial at 115200 baud, 8 data bits, 1 stop bit, no parity.<br />
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'''Commands and examples – verify before use:''' <br />
<syntaxhighlight lang="text"><br />
sudo apt-get install p7zip-full<br />
cd ~<br />
sudo wget https://files.waveshare.com/upload/2/2a/Dust-Sensor-code.7z<br />
7z x Dust-Sensor-code.7z -o./Dust-Sensor-code<br />
cd ~/Dust-Sensor-code/Pico/c/build/<br />
export PICO_SDK_PATH=../../pico-sdk<br />
cmake ..<br />
make -j9<br />
cp main.uf2 /media/pi/RPI-RP2/<br />
</syntaxhighlight><br />
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== Notes and version constraints ==<br />
* The shown pin mappings apply to the listed example boards; other boards require modified wiring and code.<br />
* The provided Pico MicroPython firmware (v1.15) may cause abnormal runtime behavior with different firmware; the supplied firmware is recommended for testing.<br />
* The STM32 examples are based on STM32F103RBT6 and STM32H743; other STM32 boards need custom adaptation.<br />
* The Arduino examples target the Arduino UNO; other Arduino boards require changed connections.<br />
* The PM2.5 AQI reference table in the source contains obvious typos (“Serious pullution”); exact thresholds should be verified by a specialist before publication.<br />
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== Source and revision record ==<br />
* [https://www.waveshare.com/wiki/Dust_Sensor Dust Sensor - Waveshare Wiki]<br />
* Source revision: 110852<br />
* Captured: 2026-08-29T10:04:10+00:00<br />
* SHA-256: <code>9e33459b8b48df353b3c01da3bc90f1076845d4c485afc8e2740cb0741d6fb92</code></div>JWTechPublisher