PCB size: 33.0mm X 14.0mm X 1.6mm Working voltage: 5V DC Operating voltage: 5V DC Compatible interfaces: 2.54 3-pin interface and 4-pin Grove interface(1)
Note: S for analog output port, V and G for voltage at the common collector and ground respectively
Parameter Min. Typical Max. Unit Working voltage 4.5 5 5.5 VDC Analog output voltage ( VCC=5V ): 0 - 5 V Working current( VCC=5V ): - 122 - mA Brick Type Sensor Brick Brick Interface 3PIN Brick Power Supply 5V Board Size 33 14 1.6mm The sensitive characteristics of MQ-2 to various gases DEMO Connect S port of electronic brick of gas sensor to A0 port of Arduino board, and we will use the following program to read the analog value. When the analog value exceeds the threshold, LED lamp will flash.