MQ-7 CO Module Setup
February 11, 2017, 7:14pm
17 has the answer.. The heater is series with 82 ohm to give 1v4 to heater. A mosfet is used to bypass the resistor..
I'm unsure if PWM (30% on) is OK for the low votage .
June 3, 2019, 6:41am
17 If I want the output of CO data in ppm( i.e. 100ppm in place of 235). what formula has to be used in this code?
May 6, 2021, 10:03am
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