rpi-433

    2.1.0 • Public • Published

    rpi-433

    npm version

    NPM

    Simple NodeJS module to send and receive decimal codes through 433Mhz device on RaspberryPI 2

    Dependencies

    Building WiringPi

    pi@raspberrypi ~ $ git clone git://git.drogon.net/wiringPi
    ...
    pi@raspberrypi ~ $ cd wiringPi/wiringPi
    pi@raspberrypi ~/wiringPi/wiringPi $ sudo su
    ...
    root@raspberrypi:/home/pi/wiringPi/wiringPi# ./build

    Installation

    npm install rpi-433

    Usage

    Firstly, make sure you are running your application as root or with sudo, else the Raspberry Pi will not let you output/input to the GPIO and you'll get an error.

    sudo node myscript.js

    Please note that there are different and confusing ways to reference a channel. This module supports wPi schema. Once wiringPi is installed, in your CLI you can run gpio readall and check the wPi column or consult https://projects.drogon.net/raspberry-pi/wiringpi/pins/

    gpio readall

    Example

    var rpi433    = require('rpi-433'),
        rfSniffer = rpi433.sniffer({
          pin: 2,                     //Snif on GPIO 2 (or Physical PIN 13)
          debounceDelay: 500          //Wait 500ms before reading another code
        }),
        rfEmitter = rpi433.emitter({
          pin: 0,                     //Send through GPIO 0 (or Physical PIN 11)
          pulseLength: 350            //Send the code with a 350 pulse length
        });
     
    // Receive (data is like {code: xxx, pulseLength: xxx})
    rfSniffer.on('data', function (data) {
      console.log('Code received: '+data.code+' pulse length : '+data.pulseLength);
    });
     
    // Send
    rfEmitter.sendCode(1234, function(error, stdout) {   //Send 1234
      if(!error) console.log(stdout); //Should display 1234
    });
     
    /* Or :
     
    rfEmitter.sendCode(code);
    rfEmitter.sendCode(code, {  //You can overwrite defaults options previously set (only for this sent)
      pin: 2,
      pulseLength: 350
    });
    rfEmitter.sendCode(code, callback);
    rfEmitter.sendCode(code, {
      pin: 2,
      pulseLength: 350
    }, callback);
    */
     
    //rpi-433 uses the kriskowal's implementation of Promises so,
    //if you prefer Promises, you can also use this syntax :
    rfEmitter.sendCode(1234, {pin: 0})
      .then(function(stdout) {
        console.log('Code sent: ', stdout);
      }, function(error) {
        console.log('Code was not sent, reason: ', error);
      });

    Install

    npm i rpi-433

    DownloadsWeekly Downloads

    5

    Version

    2.1.0

    License

    ISC

    Last publish

    Collaborators

    • eroak