Moduł z czujnikiem mierzącym poziom alkoholu w powietrzu, może zostać użyty do budowy alkomatu. Zestaw zawiera również przewody połączeniowe. Overview * Sensitive for alcohol, ethanol * Output voltage boosts along with the concentration of the measured gases increases * Fast response and recovery * Adjustable sensitivity * Signal output indicator Specifications * Power: 2.5V ~ 5.0V * Dimension: 40.0mm * 21.0mm * Mounting holes size: 2.0mm Applications * Car alcohol alarm * Breathalyser How to Use In the case of working with a MCU: * VCC ↔ 2.5V ~ 5.0V * GND ↔ power supply ground * AOUT ↔ MCU.IO (analog output) * DOUT ↔ MCU.IO (digital output) Package Contains * MQ-3 Gas Sensor × 1 * 4-pin custom connector jumper wire × 1 Downloads Development resources: demo codes, schematic, datasheets, etc. Click here to download Selection Guide Part Number Sensitive Gas Application MQ-135 Gas Sensor benzene, alcohol, smoke Air quality monitor MQ-2 Gas Sensor LPG, propane, hydrogen Gas leakage detector MQ-3 Gas Sensor alcohol, ethanol Car alcohol alarm, breathalyser MQ-5 Gas Sensor LPG, natural gas, coal gas Gas leakage detector MQ-7 Gas Sensor carbon monoxide Carbon monoxide monitor https://elecena.pl/product/5231555/modul-z-czujnikiem-alkoholu-mq-3 2015-07-07 https://elecena.pl/product/5231555/modul-z-czujnikiem-alkoholu-mq-3 2015-09-07 https://elecena.pl/product/5231555/modul-z-czujnikiem-alkoholu-mq-3 2020-12-27