See PCINT pin table at the bottom for more details. Arduino Uno/Nano/Mini: All pins are usable Arduino Mega: 10, 11, 12, 13, 50, 51, 52, 53, A8 (62), A9 (63), A10 (64 ...
This library is designed to control an MT8816 analog crosspoint switch using an MCP23017 GPIO expander. The MT8816 is a 16x8 crosspoint switch array, and this library provides an interface to connect ...
I just received my RC522 RFID reader and made this simple Arduino access control system that uses the reader, a buzzer for the alarm and a relay shield for the security system. The relay can be used ...
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