PlatformIO example project showing how to use RC522 Mini in i2c mode. To set the breakout board in i2c mode you need to cut the connection grounding pin 1 as discussed in this thread on the arduino ...

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 ...

┌────────────────┐ ┌──────────────┐ │ Arduino Uno │ │ MFRC522 RFID │ │ │ │ Module │ │ 3.3V ───────── │ VCC │ │ GND ...

[Johngineer] found himself in need of an I2C sniffer, but didn’t have one available. Necessity is the mother of invention, so he put together this I2C sniffer sketch for Arduino. The arduino will ...

Abstract: Identification of corrosion in the tool industry is very important because it minimizes the impacts and losses due to damage to the tools used. Although there is already a corrosion ...