Read and Write NDEF messages on Mifare Ultralight NFC Tags with Arduino connected to MFRC522 RFID card. NFC Data Exchange Format (NDEF) is a common data format that operates across all NFC devices, ...

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 ...

[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 ...

This articles describes how you can use I2C (TWI) communication, Arduino and temperature sensors to measure 3 different temperatures. It can be very helpful when you want to measure the outside, ...