Simple Node-RED node for the Jetson Nano to read NFC tags via a RC522 NFC reader. It can return the UID and optionaly a text from card.
npm install node-red-contrib-jetson-mfrc522
A [Node-Red][1] node that allows you to read NFC tags with an RC522 card reader.
Tested the node on a Jetson Nano.
Requirements
------------
- [Python3][2]
- [Jetson.GPIO][3]
- [Jetson-MFRC522][4]
------------
Enable SPI
------------
- Next, configure the Jetso for SPI, use the command
``
sudo /opt/nvidia/jetson-io/jetson-io.py
- Select Configure Jetson 40pin Header
- Then, Select Configure Header pins manually
- Select spi1 and then select exit
- Select Save pin changes
- Select Save and reboot to reconfigure pins
- Last, use the following command to enable spidev
sudo modprobe spidev
-----
WIRING
---
You need to connect to RC522 card reader to the following pins:
`
| | PIN |
|------|-----|
| SDA | 24 |
| SCK | 23 |
| MOSI | 19 |
| MISO | 21 |
| GND | 6 |
| RST | 22 |
| 3.3V | 1 |
NOTES
----
Currently this project only support reading tags on SPI bus 0.0. Also, the node only supports reading tags, not writing tags.
[1]: https://nodered.org
[2]: https://www.python.org
[3]: https://github.com/NVIDIA/jetson-gpio
[4]: https://github.com/SantaCRC/Jetson-MFRC522