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UART interface
For nRF24L01 datasheet
There are a ton of nice coin-operated projects just waiting to be built
Cable is about 20cm long
you can monitor changes in the weather
Alcohol Sensor MQ3 (Analog/Digital) aluminum extrusion UART interfaceThe analog gas sensor MQ3 is suitable for detecting alcohol, this sensor can be used in a Breathalyser. It has a high sensitivity to alcohol and small sensitivity to Benzine. The sensitivity can be adjusted by the potentiometer. Specification Support both the output digital value and the output analog value. Power supply: 5V Interface type: Analog Digital High sensitivity to alcohol and small sensitivity to Benzine Fast response and High sensitivity
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