For all those times you walk the dog but forget to bring the garage door remote, this is for you! Install a garage door remote keypad outside your house and never get locked out again.
LibUDPard is a robust implementation of the Cyphal/UDP transport layer in C99/C11 for high-integrity real-time systems. Cyphal is an open technology for real-time intravehicular distributed computing ...
The PCB must be mounted floated, otherwise key presses don't work reliable. Connect pins 3 and 4 on connector P1 for 16-pin button mode. Smaller keypads with less pins may work, but are not tested.
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