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Arduino shield and module connections
Output ON/OFF control
Compact module with onboard decoupling capacitors
Despite its tiny footprint
MQ-7 Carbon Monoxide Gas Sensor angle Arduino shield and module connectionsThis is a simple to use MQ7 Gas Sensor Carbon Monoxide Sensor , suitable for sensing CO concentrations in the air. The MQ 7 can detect CO gas concentrations anywhere from 20 to 2000 ppm. This sensor has a high sensitivity and fast response time. The sensors output is an analog resistance. The drive circuit is very simple; all you need to do is power the heater coil with 5V, add a load resistance, and connect the output to an ADC. This sensor comes in
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