Puck.js with SMS control

This video shows you how use Puck.js and a GSM modem to control devices via SMS text messages.

The video further down shows how to read data from BLE devices within range and then send that as an SMS text message response.

Note: You'll need the latest firmware as of Sept 2017 on your Puck.js device for this. That means at least 1v95 (when released) or a 'cutting edge' build (http://www.espruino.com/Download).

You'll need

• A Puck.js device (or other Espruino board if you don't need Bluetooth LE
• A SIM800 or SIM900 module. The one I'm using is designed for a 5v input (if yours isn't you'll need to change the wiring accordingly)
• A 3.3v voltage regulator (LD1117AV33) if you're not going to use Puck.js's battery
• A 5v power source
• A Breadboard and patch wires if you're planning on assembling as in the video

Wiring Up

Connect as follows:

LD1117AV33

Pin	Connection
1 (GND)	GND on everything else
2 (Output)	Puck.js 3V
3 (Input)	5v Input

Puck.js

Pin	Connection
GND	GND on everything else
3V	Puck.js 3V
D28	SIM800 RXD
D29	SIM800 TXD

SIM800

Pin	Connection
GND	GND on everything else
5V	5v Input
SIM800 RXD	Puck.js D28
SIM800 TXD	Puck.js D29

Software

Controlling Puck.js's LED from an SMS

Bluetooth.setConsole(1);
Serial1.setup(115200, { rx: D29, tx : D28 });
var ATSMS = require("ATSMS");
var sms = new ATSMS(Serial1);

sms.init(function(err) {
  if (err) throw err;
  console.log("Initialised!");

  sms.list("ALL", function(err,list) {
    if (err) throw err;
    if (list.length)
      console.log(list);
    else
      console.log("No Messages");
  });

  // and to send a message:
  //sms.send('+441234567890','Hello world!', callback)
});

sms.on('message', function(msgIndex) {
  console.log("Got message #",msgIndex);
  sms.get(msgIndex, function(err, msg) {
    if (err) throw err;
    print("Read message", msg);
    var txt = msg.text.toLowerCase();
    if (txt=="on") LED1.set();
    if (txt=="off") LED1.reset();
    // delete all messages to stop us overflowing
    sms.delete("ALL");
  });
});

Controlling an Awox BLE Lightbulb

Bluetooth.setConsole(1);
Serial1.setup(115200, { rx: D29, tx : D28 });
var ATSMS = require("ATSMS");
var sms = new ATSMS(Serial1);

sms.init(function(err) {
  if (err) throw err;
  console.log("Initialised!");

  sms.list("ALL", function(err,list) {
    if (err) throw err;
    if (list.length)
      console.log(list);
    else
      console.log("No Messages");
  });

  // and to send a message:
  //sms.send('+441234567890','Hello world!', callback)
});

sms.on('message', function(msgIndex) {
  console.log("Got message #",msgIndex);
  sms.get(msgIndex, function(err, msg) {
    if (err) throw err;
    print("Read message");
    var txt = msg.text.toLowerCase();
    if (txt=="on") setLight(1);
    if (txt=="off") setLight(0);
    // delete all messages to stop us overflowing
    sms.delete("ALL");
  });
});

function setLight(isOn) {
  var gatt;
  NRF.connect("98:7b:f3:61:1c:22").then(function(g) {
    //         ^^^^^^^^^^^^^^^^^  your light's address here
    gatt = g;
    return gatt.getPrimaryService("33160fb9-5b27-4e70-b0f8-ff411e3ae078");
  }).then(function(service) {
    return service.getCharacteristic("217887f8-0af2-4002-9c05-24c9ecf71600");
  }).then(function(characteristic) {
    return characteristic.writeValue(isOn ? 1 : 0);
  }).then(function() {
    gatt.disconnect();
    console.log("Done!");
  });
}

Returning temperature

The code on the Puck.js sending the temperature is:

setInterval(function() {
  NRF.setAdvertising({
    0x1809 : [Math.round(E.getTemperature())]
  });
}, 30000);

and the full source is:

Bluetooth.setConsole(1);
Serial1.setup(115200, { rx: D29, tx : D28 });
var ATSMS = require("ATSMS");
var sms = new ATSMS(Serial1);

sms.init(function(err) {
  if (err) throw err;
  console.log("Initialised!");

  sms.list("ALL", function(err,list) {
    if (err) throw err;
    if (list.length)
      console.log(list);
    else
      console.log("No Messages");
  });

  // and to send a message:
  //sms.send('+441234567890','Hello world!', callback)
});

sms.on('message', function(msgIndex) {
  console.log("Got message #",msgIndex);
  sms.get(msgIndex, function(err, msg) {
    if (err) throw err;
    print("Read message", msg);
    var txt = msg.text.toLowerCase();
    if (txt=="on") LED1.set();
    if (txt=="off") LED1.reset();
    if (txt=="get") getTemp(msg.oaddr);
    // delete all messages to stop us overflowing
    sms.delete("ALL");
  });
});

function getTemp(number) {
  console.log("Getting temp");
  NRF.findDevices(function(devs) {
    devs.forEach(function(dev) {
      if (dev.name=="Puck.js 5736") { // <--- change this to the name of your Puck.js
        console.log("Got temp");
        var message = "Temp is "+dev.serviceData["1809"][0];
        sms.send(number,message, function() {
          print("Sent text!");
        });
      }
    });
  });
}

Buying

See the Puck.js Lightbulb page for links to where to find the Awox lights for sale.

The SIM900 page has links to where to find the SIM900 module.

Puck.js devices can be ordered from here