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by hummel13
Sun Jan 28, 2018 12:09 pm
Forum: General Discussion
Topic: RC522 Wiring
Replies: 2
Views: 6606

RC522 Wiring

Hi, I'm having trouble connecting an RC522 rfid reader to my esp32 module. I have the esp32-Lora module from Heltec with the built-in Oled and lora functionality. Here is the pin diagram for this module: Heltec_WIFI-LoRa-32_DiagramPinoutFromTop.jpg And here is the diagram for the Rc522 NFC-RC522-Mod...