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TCS34725 Datasheet
External Depth: 8
Fast response and High sensitivity
This cutting edge ultrasonic technology enables small size
Smoke sensor MQ2 (Digital/Analog) data transmission TCS34725 DatasheetThis smoke sensor module with MQ2 Smoke sensor have both digital and analog outputs , you also can adjust the sensitivity with the potentioneter. PIN Connection 4 pins as follows: VCC (5 V) GND (ground) Aout (Analog output) Dout (Digital output) When connect to arduino, use digital pins in digital mode (high or low) and use analog pins for analog mode (diffrenet value for different smoke intensity).
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