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Member #898076

Member Since: February 1, 2017

Country: United States

  • I made a set of experiments using this sensor and wrote an instructable with schematics, code and calibration procedure that can be, with some complications, performed at home: https://www.instructables.com/id/Arduino-CO-Monitor-Using-MQ-7-Sensor/ . Code is relatively complicated since we need to drive transistor with PWM in order to create 1.4V on the sensor - we must use 5V / 1.4V cycles for heating and measuring data. But my results are quite similar to manufacturer's datasheet, so I believe I did it mostly right

No public wish lists :(