Hi I am currently creating an alarm system. I know that the best practice would make me assign every sensor to a dedicated pin, and this would also let me know which sensor is triggered, but when it comes to cost killing, is it a good idea to put something like 10 magnetic door opening sensors on …

Putting several sensors on the same input

Wawa June 20, 2018, 10:50pm 2

Google "Arduino port expander".
Leo..

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