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Grove - Alcohol Sensor

4 years ago 1181
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How to choose a gas sensor ?

Alcohol sensor is semiconductor sensor for alcohol detection. It has good sensitivity and fast response to alcohol, suitable for portable alcohol detector.

Specifications Power requirements: 5 VDC @ ~120 mA (heater on) Detection Gas: Alcohol Concentration: 20-1000ppm Alcohol Interface: 1 TTL compatible input (SEL), 1 TTL compatible output (DAT) Dimension: 40×20×12mm Heater Voltage: 0.9V ± 0.1V AC or DC Heater Current: 120±20mA

Application Ideas Alcohol level over-limit alarm Stand-alone/background sensing device Environmental monitoring equipment


Please visit our wiki page for more info about this product. It will be appreciated if you can help us improve the documents, add more demo code or tutorials. For technical support, please post your questions to our forum.

More information about gas sensor, please refer to this manual.

For more detail, please visit:


Grove - Alcohol Sensor v1.2


ID Name Designator Footprint Quantity
1 Si2305DS Q1 SOT23 1
2 1k R13 R0603 1
3 TPS62200 U5 SOT23-5 1
4 4.7uF C22 C0805 1
5 10uH L4 PIO73 1
6 16k 1% R14 R0603 1
7 20k R15 R0603 1
8 100nF C23,C24 C0603 2
9 10uF C25 C0805 1
10 NO U6 MQ303A 1
11 10k R16 R0603 1
12 SMD Grove J2 4P-SMD-2.0 1
13 NO TP5,TP4,TP3,TP2,TP1 TP_4545 5


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