MQ2 Gas Sensor Module-UART

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UART  - MQ-2 Gas Sensor Module Smoke Methane Butane Detection

UART  - MQ-2 Gas Sensor Module Smoke Methane Butane Detection
Chip: LM393, ZYMQ-2 gas sensors
Working voltage: DC 5V
Detection of gas: combustible gases, fumes
Detectable concentration: 300-10000ppm (flammable gas)
Input voltage: DC5V
Power consumption (current): 150mA
DO output: TTL digital 0 and 1 (0.1 and 5V)
AO output: 0.1 - 0.3V (relative to pollution), the maximum concentration of a voltage of about 4V
   1- VCC: positive power supply (5V)
   2 -GND: power supply is negative
  3- DO: TTL switching signal output
  4- AO: analog signal output
Product dimensions: 32 x 20 x 15 (L x W x H)

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