Is a small software that reads and NFC / RFID chip and forwards the UID by emulating an bluetooth keyboard (HID).
This allows for simple RFID scans to many hardware such as tablets or laptops.
- ESP32
- PN532 (or similar)
| ESP32 | PN532 |
|---|---|
| D22 | SCL |
| D21 | SDA |
| GND | GND |
| 3,3V | VCC |
Add 2 pull-up resistors of 3,3kΩ between VCC and both I2C lines.
To compile this I used Platform.io
- PN532 Library ( see lib folder )
- Tutorial: ESP32 and NFC over I2C
- Example: ESP32 as Bluetooth Keyboard