Gravity: Analog Alcohol Sensor (MQ3) Category_Robot Kits/BEAM Independent axis current limiting adjustments

Independent axis current limiting adjustments

Four mounting holes make for a secure connection

Warning: It is important to be aware that while this board has three power inputs

5V in and 4A out where the current is just under the limit and the regulator might not shut off before damage occurs

Gravity: Analog Alcohol Sensor (MQ3) Category_Robot Kits/BEAM Independent axis current limiting adjustmentsThis is an Arduino Alcohol sensor. It uses a MQ3 probe which can be used in a Breathalyser. It has a high sensitivity to alcohol and less sensitivity to Petrol. The sensitivity is able to be adjusted by the potentiometer. The output is proportional to the density of gas. You can use analog reading to read the data from this sensor. To ease the difficulty of using this sensor, a Gravity Interface is adapted to allow plug&play. The Arduino IO expansion