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Code review is systematic examination of your Arduino sketch. It is intended to find and fix mistakes overlooked in the initial development phase, improving both the overall quality of software and the developers' skills.

3 votes
1 answer
113 views

My Arduino freezes if power removed from the HMI

I have an Arduino (Pro Mini) connected to an HMI display over serial. When the user pushes a button on the HMI screen, it activates a relay attached to one of the digital pins on the Arduino. For saf …
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