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- Thu Nov 08, 2018 10:26 am
- Forum: General Discussion
- Topic: RC522 Wiring
- Replies: 2
- Views: 6609
Re: RC522 Wiring
I Have tried to connect to I2C bus on Wemos Lolin32 Oled Board that is pin no. 5, 4 (SDA/SCL) which is also shared with Oled as 5 and 4 is dedicated I2C pins on this board. But while I run the code It says MFRC22 in not connected properly. I have also tried to connect the mfrc522 through SPI bus usi...