Remote Controlling Home Appliances Using Raspberry PI and Power Platform

01-remote.js

let lirc_node = require('lirc_node');

lirc_node.init();

const remote = (device, command) => {
    lirc_node.irsend.send_once(device, command, () => {
        console.log(command);
    });
}

const remoteControl = {
    onSwitchOn: (device) => {
        remote(device, "SWITCH_ON");
    },

    onSwitchOff: (device) => {
        remote(device, "SWITCH_OFF");
    }
}

module.exports = remoteControl;

02-app.js

let express = require('express');
let remote = require('./remote');

let app = express();

app.get('/remote/switchon', function(req, res) {
    let device = req.query.device;
    remote.onSwitchOn(device);

    let message = {
        "message": device + " turned on"
    }

    res.send(message);
});

app.get('/remote/switchoff', function(req, res) {
  let device = req.query.device;
  remote.onSwitchOff(device);

    let message = {
        "message": device + " turned off"
    }

    res.send(message);
});

app.listen(4000, () => {
  console.log("app started !!");
});

module.export = app;

03-package.json

{
  ...
  "scripts": {
    "start": "node app.js"
  },
  ...
}

04-run-ngrok.sh

./ngrok http 4000

05-function.js

const axios = require('axios');

module.exports = async function (context, req) {
    context.log('JavaScript HTTP trigger function processed a request.');

    let device = (req.query.device || (req.body && req.body.device));
    let power = (req.query.power || (req.body && req.body.power));

    let baseUri = process.env.REMOTE__BASE_URI;
    let switchOnEndpoint = process.env.REMOTE__ENDPOINTS__SWITCHON;
    let switchOffEndpoint = process.env.REMOTE__ENDPOINTS__SWITCHOFF;
    let endpoint = power == 'on' ? switchOnEndpoint : switchOffEndpoint;

    let requestUri = baseUri + endpoint + "?device=" + device;

    let response = await axios.get(requestUri);

    context.res = {
        // status: 200, /* Defaults to 200 */
        body: response.data
    };
}