node-rc522
v16.0.4
Published
Module to access an rfid reader with rc522 chipset connected to a raspberry pi. Using promises.
Downloads
7
Readme
node-rc522
Module to access an rfid reader with rc522 chipset connected to a raspberry pi. Using promises.
Fork of
This is a fork with added functionality. For a nice and simpler module please see the original https://www.npmjs.com/package/rc522-rfid
Purpose
This node module is to access RFID reader with a rc522 chipset (e.g. http://amzn.com/B00GYR1KJ8) via SPI interface of the raspberry pi.
Functionality
The module is currently only able to read the serial number of the tag which is hold onto the reader.
Requirements
- The RFID reader is plugged onto the raspberry pi like it is described over here http://geraintw.blogspot.de/2014/01/rfid-and-raspberry-pi.html
- The GCC compiler is installed
sudo apt-get install build-essential
- node-gyp is installed
npm install -g node-gyp
Installation
First of all we have to install the C library for Broadcom BCM 2835 as it describe` here
wget http://www.airspayce.com/mikem/bcm2835/bcm2835-1.35.tar.gz
tar -zxf bcm2835-1.35.tar.gz
cd bcm2835-1.35
./configure
sudo make install
Then we can install the rc522 rfid nodejs module
npm install --save rc522-rfid-promise
Api
startListening(timeout)
// timeout is optional
// returns a promise
stopListening()
// closes the child process and rejects the promise if still unresolved
Usage
var rc522 = require("rc522-rfid-promise");
rc522.startListening(5000)
.then(function(rfidTag){
console.log(rfidTag);
});