Hello guys, my MH-Z19C works fine when connected to my Arduino Uno. After wiring it to my new Arduino Mega it stopped working. What tweaks are there to make when switching between those two different Arduinos? My wiring: sensor Vin → Arduino pin 5V sensor GND → Arduino pin GND sensor RX → Ardui…

You are foolish to use Software Serial on a Mega, and your time is better spent trying to get Serial1,2,or 3 working instead of using various pins for software serial without reading the documentation . Not all pins on the Mega and Mega 2560 support change interrupts, so only the following can be …

MH-Z19C works on Uno but not on Mega

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MH-Z19C works on Uno but not on Mega

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