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DO: Digital output (HIGH/LOW based on threshold)
TEC1-12706 wholesale Capable of performing to exacting specifications
Arduino shield and module connections
Despite its tiny footprint
Charge indication: LED per cell (red = charging
MQ-7 Carbon Monoxide Gas Sensor angle DO: Digital output (HIGH/LOW basedThis 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
