Carbon Monoxide Sensor MQ 7 SEN 09403 SparkFun ...
This is a simple to use Carbon Monoxide (CO) sensor, suitable for sensing CO concentrations in the air. The MQ 7 can detect CO gas concentrations anywhere from 20 to 2000ppm.Internet of Things: CO (Carbon Monoxide) Gas Sensor Using ...
The MQ7 requires a heater voltage that cycles between 5v (60s) and 1.4v (90s), drawing approximately 150mA at 5v which exceeds the power capacity of the Uno, so I use the KA278RA05C adjustable voltage regulator to drive this.10 Creative Arduino Projects for Beginners Anyone Can Make
We've listed the 10 basic Arduino projects for beginners that you can make at home. Each projects comes with a full tutorial
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