ESP8266 interfacing with RFID RC522 using UART
Posted: Thu Nov 07, 2019 3:19 pm
How RC522 can be connected to ESP8266 using UART instead of using SPI. SPI requires more pin which can be done using nodemcu board. But in case of ESP01 which has only 2 IO pin, cannot be connected to RC522. Please help if anyone has solution.
Note that I made RC522 work with nodemcu using SPI. I also worked with RDM6300 RFID reader with UART. But I need UART for RC522 RFIF module.
Note that I made RC522 work with nodemcu using SPI. I also worked with RDM6300 RFID reader with UART. But I need UART for RC522 RFIF module.