Product description: Grove - alcohol sensor - MQ3 - semiconductor.
Module with sensor MQ3 for detecting alcohol vapour and its concentration. The sensor iscompatible withArduinoand Raspberry,thanks toGrove connector it is possible toconnectdirectlytoGrove-Pi+ andGrove BaseShield.The sensorcommunicates through the analog interface, so in orderto use it with Raspberry it is required to use Grove-Pi+ overlay orADC.There is a potentiometer on the board to adjust the sensitivity.
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Arduino compatible product The manufacturer providesa user guideshowing its connection and programming. |
Alcohol sensor connection - MQ3
The PCB is equipped witha 7-pin bracketso that the replacement of the sensor itself is non-invasive and can be simply removed. The board has a built-in Grove socket that allows direct connection of the sensor to Grove-Pi+or GroveBase Shieldcovers.Due to the analogue communication interface, the sensor cannot be connected to the Raspberry without using the Grove-Pi+ overlayorthe ADC.
| Pin | Description |
|---|---|
| GND | The weight of the system. |
| VCC | The supply voltage is 5 V. |
| NC | Not connected. |
| SIG | Sensor output signal. |
Alcohol sensor specification - MQ3
- Power supply voltage: 5 V
- Potentiometer adjustment range: 1 MΩto 8 MΩ
- Measurement range: 0.05 mg/L to 10mg/L
- Type: solid-state
- Dimensions: 40 mm x20 mm x 25 mm
- Weight: 7,8 g
The kit includes:
- Alcohol sensor - MQ3
- Grove cable
Useful links |
