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node-red-contrib-jetson-mfrc522

v1.0.1

Published

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.

Downloads

26

Vulnerabilities

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Links

Git

Maintainers

marchelzimarchelzi

Keywords

node-rednodenfcrc522mfrc522jetsonnano

Readme

A Node-Red node that allows you to read NFC tags with an RC522 card reader. Tested the node on a Jetson Nano.

Requirements

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.