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, ...
Dica: se não tiver conversor, use pull-ups a 3.3V no barramento I²C (ou um conversor). Evite forçar 5V no ESP32. Como ligar os fios (sem segredo) 2.1 RC522 → ESP32 (protocolo SPI) RC522 ESP32 SDA / SS ...
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 ...
The venerable I²C bus has never been more popular. Most modern microcontrollers either have a hardware I²C interface or are capable of bit-banging one in software. Many sensors, AD and DA converters, ...
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 ...
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