Published August 26, 2020

Home appliances control with Indicator button using Bolt IoT

This project is mainly concentrated on the button called an indicator button which can be used in Home Automation.

IntermediateProtip2 hours416

Home appliances control with Indicator button using Bolt IoT

Things used in this project

Hardware components

Bolt IoT Bolt WiFi Module

ControlEverything.com 4-CHANNEL RELAY CONTROLLER FOR I2C

Jumper wires (generic)

Software apps and online services

Bolt IoT Bolt Cloud

Bolt IoT Android App

Story

About the project:

In this project an indicator button is designed, using HTML and JavaScript. The button indicates the switching status by changing its status from "ON" to "OFF" and visa versa when it is pressed. Also, one main switch is designed to control all the respective buttons. It behaves like the main switch, we have in our home which controls the main supply. The virtual block diagram of switches are given below:

1.Initial stage:

2. Lable changed when the switches are pressed to turn on the connected device :

3. If the main switch is pressed, it will cut the supply of all the switches with the initial status as given:

OFF to ON with power off

This entire project is implemented using the Bolt IoT and 4 channel relay module. Hence first we should learn what is Bolt IoT and relay.

What is Bolt IoT?

Please refer this link https://docs.boltiot.com/ to know about Bolt and Bolt cloud.

What is the relay?

Relay is a switch that controls (open and close) circuits electromechanically. The main operation of this device is to make or break contact with the help of a signal without any human involvement in order to switch it ON or OFF. It is mainly used to control a high powered circuit using a low power signal.

Getting started:

It is exciting to see the button on the web page or in Bolt App which can control our home appliances and changes its status or label when it is pressed in order to make the device turn on or off.

The explanation of this project is divided into two parts which are given below.

Hardware connections
Configuration of Bolt IoT module with Programming Code

1. Hardware connections:

Step 1: Assemble all the required material which will be used in the project.

Step 2: Let's start with the connection of the relay module to the Bolt IoT device.

Connect GND of Relay to GND of Bolt
Connect VCC of Relay to 5V of Bolt
Connect IN1, IN2, IN3, and IN4 of Relay to pin 1, 2, 3, and 4 of Bolt respectively.

1 / 2 • Circuit connection on both the side

In order to demonstrate the model I have used LEDs with the Relay however, we can use the home appliances like Fan, Light, etc.

As you can see in the picture below, every relay has 3 terminal NC(normally close), NO(normally open), and Common.

+5 volt is given to the Common terminal of the relay and NO is connected with Anode of Led and Cathode of Led is connected to the ground.
Connect all the relays respectively, refer below figure.

Bluewire indicates signal line

Final schematic looks like this :

1 / 2 • Circuit connection

2. Configuration of Bolt IoT module:

Step 1: Connect the Bolt device with a 5 volt supply and open the BoltCloud https://cloud.boltiot.com/

Check whether the board is online or not. The green dot represents Bolt is connected with Bolt cloud through the Internet.

Step 2: Refer this link to know how to create a new product(project) on Bolt cloud https://docs.boltiot.com/docs/adding-a-product

Step 3: In this project, I have created a project named HomeAutomation

Step4: Configure your product as shown in the figure:

Step5: Click on the code and enter the details as shown in the figure:

Step6: Finally, Link the product to the device and upload the configuration visit https://docs.boltiot.com/docs/link-device-to-a-product

Code & Working:

In the given code I have designed input buttons that can call the specific functions when they are pressed.

When the button is pressed, it sends a logic '0' to the relay which turns on the respective relay and changes its status according to logic. This way it works as an indicator button.

This project can be a good example for a beginner who wants to understand how to use HTML and Javascript together to design automation projects related to Bolt IoT.

Future scope:

Based on this project an automation panel can be designed which can show the energy consumption and utilization time of each appliance are connected.

Code

Code

 <html>
<head>
    <h1> <center> Appliences control for Home Automation with real time status button using BOLT-IoT  </center> </h1>
    <style>
        .OFF {
            background-color: #555555;
            border: none;
            color: white;
            padding: 15px 32px;
            text-align: center;
            text-decoration: none;
            display: block;
            font-size: 16px;
            margin: 4px 2px;
            cursor: pointer;
            border-radius: 12px;
        }

        .fan {
            background-color: #008CBA;
            border: none;
            color: white;
            padding: 15px 32px;
            text-align: center;
            text-decoration: none;
            display: block;
            font-size: 16px;
            margin: 4px 2px;
            cursor: pointer;
            border-radius: 12px;
        }

        .light {
            background-color: #4CAF50;
            border: none;
            color: white;
            padding: 15px 32px;
            text-align: center;
            text-decoration: none;
            display: block;
            font-size: 16px;
            margin: 4px 2px;
            cursor: pointer;
            border-radius: 12px;
        }

        .AC {
            background-color: #00ffff;
            border: none;
            color: black;
            padding: 15px 32px;
            text-align: center;
            text-decoration: none;
            display: block;
            font-size: 16px;
            margin: 4px 2px;
            cursor: pointer;
            border-radius: 12px;
        }

        .TV {
            background-color: #f44336;
            border: none;
            color: white;
            padding: 15px 32px;
            text-align: center;
            text-decoration: none;
            display: block;
            font-size: 16px;
            margin: 4px 2px;
            cursor: pointer;
            border-radius: 12px;
        }
    </style>

    <script type="text/javascript" src="https://cloud.boltiot.com/static/js/boltCommands.js">
    </script>

    <script type="text/javascript">

    setKey('{{ApiKey}}','{{Name}}');
    setDebug(false);

    function OFF()
    {
    var elem = document.getElementById("btn1");
     if (elem.value=="OFF")
      {
        digitalWrite(1,'HIGH');
      digitalWrite(2,'HIGH');
      digitalWrite(3,'HIGH');
      digitalWrite(4,'HIGH');
     
        elem.value = "ALL OFF";

        var elem = document.getElementById("btn2").value = "ON";
        var elem = document.getElementById("btn3").value = "ON";
        var elem = document.getElementById("btn4").value = "ON";
        var elem = document.getElementById("btn5").value = "ON"; 
      }
   else
     { 
        elem.value = "OFF";
      digitalWrite(1,'HIGH');
      digitalWrite(2,'HIGH');
      digitalWrite(3,'HIGH');
      digitalWrite(4,'HIGH');
        
      }


    }
    function fan()
    {
    var elem = document.getElementById("btn2");
    if (elem.value=="ON")
    {digitalWrite(1,'LOW');
       elem.value = "OFF";
     }
    else
      { elem.value = "ON"
        digitalWrite(1,'HIGH');
      }
    }
     function light()
      {
    var elem = document.getElementById("btn3");
    if (elem.value=="ON")
    {digitalWrite(2,'LOW');
       elem.value = "OFF";}
    else
      { elem.value = "ON"
        digitalWrite(2,'HIGH');
      }
    }
    function AC() {
    var elem = document.getElementById("btn4");
    if (elem.value=="ON")
    {digitalWrite(3,'LOW');
       elem.value = "OFF";}
    else
      { elem.value = "ON"
        digitalWrite(3,'HIGH');
      }
    }

    function TV() {
    var elem = document.getElementById("btn5");
    if (elem.value=="ON")
    {digitalWrite(4,'LOW');
       elem.value = "OFF";}
    else
      { elem.value = "ON"
        digitalWrite(4,'HIGH');
      }
    }

    </script>
    
    <div class="background">
        <center>

            <h2> <center> Press this button to switch off all the appliences </center> </h2>

            <input type="button" id="btn1" value="OFF" class="OFF" onClick='OFF()' />

            <h3> <center> Fan control</center> </h3>
            <input type="button" id="btn2" value="ON" class="fan" onClick='fan()' />
            <h3> <center> light control </center> </h3>
            <input type="button" id="btn3" value="ON" class="light" onClick='light()' />
            <h3> <center> AC control</center> </h3>
            <input type="button" id="btn4" value="ON" class="AC" onClick='AC()' />
            <h3> <center> TV control </center> </h3>
            <input type="button" id="btn5" value="ON" class="TV" onClick='TV()' />

        </center>

    </div>
</body>
</html>

Home appliances control with Indicator button using Bolt IoT

Things used in this project

Hardware components

Software apps and online services

Story

About the project:

What is Bolt IoT?

What is the relay?

Getting started:

1. Hardware connections:

2. Configuration of Bolt IoT module:

Code & Working:

Future scope:

Schematics

Circuit diagram

Code

Code

Credits

Bhavikkumar jogani

Comments

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Home appliances control with Indicator button using Bolt IoT

Home appliances control with Indicator button using Bolt IoT

Things used in this project

Hardware components

Software apps and online services

Story

About the project:

What is Bolt IoT?

What is the relay?

Getting started:

1. Hardware connections:

2. Configuration of Bolt IoT module:

Code & Working:

Future scope:

Schematics

Circuit diagram

Code

Code

Credits

Bhavikkumar jogani

Comments

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