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This is for questions about the official IDE. The open-source IDE makes it easy to write code and upload it to any Arduino board. It runs on Windows, macOS and Linux.

1 vote
0 answers
153 views

Issue with multiple RC522s connected to Arduino Uno

THIS IS NOT A DUPLICATE QUESTION. My main problem is that whenever I attach the third RC522, the whole system becomes unstable. When I attach the fourth, suddenly one or two of the modules stop worki …
Arman Asgharpoor's user avatar