Introduction
Watch YouTube Video
Circuit Schematics
How does the 12 Channel transfer Board work to control room lights
Blocks
‌How does the Wireless Connectivity work to Control Your Room Lights With Your Phone
Note
Application
Download Links
Conclusion

Published April 13, 2020 © CC BY

Control Room Lights with Android Phone Project

Today right now will Discuss the Relay module. Here I will make a 12 Channel Board. This hand-off board interfaces through Bluetooth.

IntermediateFull instructions provided3 hours3,420

Control Room Lights with Android Phone Project

Things used in this project

Hardware components

Arduino Nano UTSOURCE:

HC-05 Bluetooth UTSOURCE:

Relay UTSOURCE:

12V Adapte UTSOURCE:

Resistors UTSOURCE:

Capacitor UTSOURCE:

Screw Terminal Block UTSOURCE:

Female Header UTSOURCE:

5MM Green LED UTSOURCE:

5MM Red LED UTSOURCE:

Push Button UTSOURCE:

LED Bulbs UTSOURCE:

Wires UTSOURCE:

BC547 Transistor UTSOURCE:

1N4007 Diode UTSOURCE:

Soldering Iron UTSOURCE:

Arduino Uno R3 Board UTSOURCE:

Hand tools and fabrication machines

Soldering Iron UTSOURCE:

Iron Stand UTSOURCE:

Nose Pliers UTSOURCE:

Flux UTSOURCE:

Story

Introduction:

Today right now will Discuss the Relay module. Here I will make a 12 Channel transfer Board. This hand-off board interfaces through Bluetooth. What's more, in particular, you can control room lights/all heaps with a solitary pinch of your Phone. along these lines, likely numerous clients will like it on the off chance that they don't have any substantial IR sensor in the Phone. The Brain of this Project is Arduino. Along these lines, fundamentally, you will figure out how to compose a straightforward Arduino code.

For the components section, I have gone with UTSOURCE. They are one of the largest component suppliers in China. They offer different types of components such as Resistors, Capacitors, ICs and many other things. You will get exclusive discounts If you order from them. So, why you are waiting for? Place your first order from UTSOURCE.

0 Profit selling KN95 masks and Infrared Thermometer from UTSOURCE.net: https://www.utsource.net/home/healthcare

Watch YouTube Video:

Here is the video about the 12 Channel Bluetooth Controlled Relay Module with Arduino Nano. Watch the video till the End you will get Everything. It is anything but difficult to control the room lights.

Circuit Schematics:

I have made the circuit outline on Online free Software EasyEDA. I have likewise utilized a few hubs for making the associations straightforward.

There are numerous parts in the circuit. Keeping everything in my psyche I have additionally made an appropriate PCB for the circuit. I requested it from JLCPCB. Here is the PCB Front Layout.

How does the 12 Channel transfer Board work to control room lights?

‌The fundamental heart of this venture is Arduino Nano. What's more, for the remote correspondence, I am utilizing an HC05 Bluetooth Module. What's more, for dealing with the High loads I am utilizing 12 Relays couple with some driving transistors.

‌And ultimately, for controlling the circuit we will require an application. BTW I have planned an application from MITApp Inventer for this venture.

Blocks:

Here are largely the individual squares for making the application. On the off chance that you are structuring the application for yourself, at that point, this may support you. Here I utilized Toggle Button So the Code is somewhat long I think as I would see it. You can likewise utilize some straightforward press fastens in the application. The Pushbuttons will limit the Code. Yet, For my situation, I find that the Toggle Buttons look progressively noticeable from Pushbuttons.

‌At next Let's Talk about the circuit. I mean How the 12 Channel transfer module functions? The Arduino has advanced pins just as simple pins. Here I have utilized every computerized pin which are I think altogether is 12. I utilized every one of them.

‌The Digital pins give High or Low Pulses. High methods 1 and Low methods 0. The High heartbeats turn the Driver Transistor on and afterward the Driver Transistor turns the transfers on for loads.

‌How does the Wireless Connectivity work to Control Your Room Lights With Your Phone?

The remote association is done through HC05 Bluetooth Module. At the point when you divert the Switch on from the telephone then the application sends a Massage to the Arduino through HC05. At that point, we have included two or three 'It-Else' conditions. Presently for a solitary back rub, A solitary line will be executed. On the off chance that this doesn't fulfill the condition, at that point it will naturally change to straightaway 'If-Else' condition. Right now, condition fulfills and the transfers will be on for loads.

Note:

I have utilized Sticky Tape for fixing all the segments in its place. Thus, the parts won't move from its place. After the Soldering procedure finishes, we can evacuate the Sticky Tape.

In the wake of expelling all the Sticky Tabe, the PCB looks extraordinary. Here is the closeup of the PCB. The welding process is simple due to Prebound copper follows.

Application:

At present, My application is just accessible for Android clients. On the off chance that I plan the application for iOS, at that point I will refresh this later.

For the time being open Bluetooth in your Android Device. At that point search for HC05 Bluetooth. The default secret key for the Bluetooth is 1234 or 0000. More often than not, the secret word is 1234.

Presently give the secret phrase and associate it with your Bluetooth.

Download Links:

Schematics: Download
PCB Image: Download
Home Automation PCB Garber: Download
App Inventor Block Image: Download
Arduino Bluetooth Home Automation Code: Download
Home Automation App: Download

Conclusion:

Along these lines, all things considered, I can say it is an enjoyable venture, in any case. Be that as it may, I confronted a few troubles while making the undertaking. For example, making the application. I am not an application engineer from my experience. In this way, it took a great deal of time. Be that as it may, finally, I thought of a completely working 12 channel hand-off module circuit with Bluetooth. I will express gratitude toward JLCPCB for making this video conceivable. Something else, there are such a large number of associations. Appending this circuit in a breadboard resembles genuine annoyance. So we can pronounce the task an extraordinary achievement. All schematics, PCB structure, PCB creation record, Arduino Code, application Inventor hinders all are given in the portrayal. I trust you folks like my interpretation of the 12 channel transfer module Board with Arduino Nano.

You can likewise peruse our different articles about Arduino.

Step 6

Next, download the application from the depiction. What's more, introduce it to your Android Phone. You may need to give consent from Unknown Sources. Simply permit the settings and Install the application.
Presently open the application and snap on the Connect Button. Presently from the given menus select the HC05 Bluetooth.

Just because when you have not associated with the Bluetooth then the Bar shading will be Red. After you associate the Bar will be Green.

Right now, we can distinguish if the HC05 Bluetooth module is associated or not.

Beneath the "Interface with Bluetooth" Button, you will discover 12 Toggle catches. These flip catches are utilized for turning On/Off the Relays.
Finally yet not least I have likewise included at the same time switch. On the off chance that you press the switch, at that point all transfers will be turned on all at once.

There are largely the details of the application. Obviously, you can include more switches by including not many more Functions. In any case, I need to make the task as straightforward as could reasonably be expected.

Step 7

Burden Connection: Now how about we append loads with the circuit. As you folks realize the PCB contains 12 Relays in this way, we can without much of a stretch associate 12 Loads with the circuit.

First I took 12 Holders for 12 lights. At that point, I have associated the Holders with arrangement with the hand-off. Furthermore, the association terminal will go to the mains voltage.

Right now, I have associated all the Light Holders with the transfers. Presently for the AC power Input, I have utilized one 2 pin plug and associated each of the 12 sets of wires in equal.

Code

Control Room Lights With Android Phone Project Arduino Code

/*
Code Name: 12 Channel Bluetooth App Controlled Home Automation
Code URI: https://circuitbest.com/category/arduino-projects/
Author: Creative Creator
Author URI: https://www.youtube.com/channel/UCJoXoKcfAo4j9XWDlxCWMyg 
Description: 12 Channel Bluetooth Home Automation with Arduino Nano and Android App
PCB Gerber URI: http://bit.ly/2UnIFFb
App URI: http://bit.ly/2OvxeaG
Version: 1.0
License: Remixing or Changing this Thing is allowed. Commercial use is not allowed.
*/

String readString;
#define relay_1 2      //Connect relay_1  to pin 2
#define relay_2 3      //Connect relay_2  to pin 3
#define relay_3 4      //Connect relay_3  to pin 4
#define relay_4 5      //Connect relay_4  to pin 5
#define relay_5 6      //Connect relay_5  to pin 6
#define relay_6 7      //Connect relay_6  to pin 7
#define relay_7 8      //Connect relay_7  to pin 8
#define relay_8 9      //Connect relay_8  to pin 9
#define relay_9 10     //Connect relay_9  to pin 10
#define relay_10 11    //Connect relay_10 to pin 10
#define relay_11 12    //Connect relay_11 to pin 10
#define relay_12 13    //Connect relay_12 to pin 13

void setup()
{
  Serial.begin(9600);             //Set rate for communicating with phone
  pinMode(relay_1, OUTPUT);       //Set relay_1  as an output
  pinMode(relay_2, OUTPUT);       //Set relay_2  as an output
  pinMode(relay_3, OUTPUT);       //Set relay_3  as an output
  pinMode(relay_4, OUTPUT);       //Set relay_4  as an output
  pinMode(relay_5, OUTPUT);       //Set relay_5  as an output
  pinMode(relay_6, OUTPUT);       //Set relay_6  as an output
  pinMode(relay_7, OUTPUT);       //Set relay_7  as an output
  pinMode(relay_8, OUTPUT);       //Set relay_8  as an output
  pinMode(relay_9, OUTPUT);       //Set relay_9  as an output
  pinMode(relay_10, OUTPUT);      //Set relay_10 as an output
  pinMode(relay_11, OUTPUT);      //Set relay_11 as an output
  pinMode(relay_12, OUTPUT);      //Set relay_12 as an output

  
  digitalWrite(relay_1, LOW);     //Switch relay_1  off
  digitalWrite(relay_2, LOW);     //Swtich relay_2  off
  digitalWrite(relay_3, LOW);     //Switch relay_3  off
  digitalWrite(relay_4, LOW);     //Swtich relay_4  off
  digitalWrite(relay_5, LOW);     //Swtich relay_5  off
  digitalWrite(relay_6, LOW);     //Swtich relay_6  off
  digitalWrite(relay_7, LOW);     //Swtich relay_7  off
  digitalWrite(relay_8, LOW);     //Swtich relay_8  off
  digitalWrite(relay_9, LOW);     //Swtich relay_9  off
  digitalWrite(relay_10, LOW);    //Swtich relay_10 off
  digitalWrite(relay_11, LOW);    //Switch relay_11 off
  digitalWrite(relay_12, LOW);    //Swtich relay_12 off
  
}
void loop()
{
  while(Serial.available())             //Check if there are available bytes to read
  {
    delay(10);                          //Delay to make it stable
    char c = Serial.read();             //Conduct a serial read
    if (c == '#'){
      break;                            //Stop the loop once # is detected after a word
    }
    readString += c;                    //Means readString = readString + c
  }
    if (readString.length() >0)
    {
      Serial.println(readString);
      if(readString == "switch all on"){
        allSwitchesOn();
      }               
      else if(readString == "switch all off"){
        allSwitchesOff();
      }             
      else if(readString == "relay_1 on"){   
        digitalWrite(relay_1, HIGH);
      }
      else if(readString == "relay_1 off"){
        digitalWrite(relay_1, LOW);
      }
       else if(readString == "relay_2 on"){   
        digitalWrite(relay_2, HIGH);
      }
      else if(readString == "relay_2 off"){
        digitalWrite(relay_2, LOW);
      }
       else if(readString == "relay_3 on"){   
        digitalWrite(relay_3, HIGH);
      }
      else if(readString == "relay_3 off"){
        digitalWrite(relay_3, LOW);
      }
      else if(readString == "relay_4 on"){
        digitalWrite(relay_4, HIGH);
      }
      else if(readString == "relay_4 off"){
        digitalWrite(relay_4, LOW);
      }
      else if(readString == "relay_5 on"){
        digitalWrite(relay_5, HIGH);
      }
      else if(readString == "relay_5 off"){
        digitalWrite(relay_5, LOW);
      }
      else if(readString == "relay_6 on"){
        digitalWrite(relay_6, HIGH);
      }
      else if(readString == "relay_6 off"){
        digitalWrite(relay_6, LOW);
      }
      else if(readString == "relay_7 on"){
        digitalWrite(relay_7, HIGH);
      }
      else if(readString == "relay_7 off"){
        digitalWrite(relay_7, LOW);
      }
      else if(readString == "relay_8 on"){
        digitalWrite(relay_8, HIGH);
      }
      else if(readString == "relay_8 off"){
        digitalWrite(relay_8, LOW);
      }
      else if(readString == "relay_9 on"){
        digitalWrite(relay_9, HIGH);
      }
      else if(readString == "relay_9 off"){
        digitalWrite(relay_9, LOW);
      }
      else if(readString == "relay_10 on"){
        digitalWrite(relay_10, HIGH);
      }
      else if(readString == "relay_10 off"){
        digitalWrite(relay_10, LOW);
      } 
      else if(readString == "relay_11 on"){
        digitalWrite(relay_11, HIGH);
      }
      else if(readString == "relay_11 off"){
        digitalWrite(relay_11, LOW);
      }
            else if(readString == "relay_12 on"){
        digitalWrite(relay_12, HIGH);
      }
      else if(readString == "relay_12 off"){
        digitalWrite(relay_12, LOW);
      }
      readString="";
    }
}
void allSwitchesOff()               //Function for turning OFF all relays
{
  digitalWrite(relay_1, LOW);       //Switch relay_1  off
  digitalWrite(relay_2, LOW);       //Swtich relay_2  off
  digitalWrite(relay_3, LOW);       //Switch relay_3  off
  digitalWrite(relay_4, LOW);       //Swtich relay_4  off
  digitalWrite(relay_5, LOW);       //Swtich relay_5  off
  digitalWrite(relay_6, LOW);       //Swtich relay_6  off
  digitalWrite(relay_7, LOW);       //Swtich relay_7  off
  digitalWrite(relay_8, LOW);       //Swtich relay_8  off
  digitalWrite(relay_9, LOW);       //Swtich relay_9  off
  digitalWrite(relay_10, LOW);      //Swtich relay_10 off
  digitalWrite(relay_11, LOW);      //Swtich relay_11 off
  digitalWrite(relay_12, LOW);      //Swtich relay_12 off
}
void allSwitchesOn()                //Function for turning ON all relays
{
  digitalWrite(relay_1, HIGH);      //Swtich relay_1  off
  digitalWrite(relay_2, HIGH);      //Swtich relay_2  off
  digitalWrite(relay_3, HIGH);      //Swtich relay_3  off
  digitalWrite(relay_4, HIGH);      //Swtich relay_4  off
  digitalWrite(relay_5, HIGH);      //Swtich relay_5  off
  digitalWrite(relay_6, HIGH);      //Swtich relay_6  off
  digitalWrite(relay_7, HIGH);      //Swtich relay_7  off
  digitalWrite(relay_8, HIGH);      //Swtich relay_8  off
  digitalWrite(relay_9, HIGH);      //Swtich relay_9  off
  digitalWrite(relay_10, HIGH);     //Swtich relay_10 off
  digitalWrite(relay_11, HIGH);     //Swtich relay_11 off
  digitalWrite(relay_12, HIGH);     //Swtich relay_12 off
}

Credits

Creative creator

22 projects • 8 followers

Control Room Lights with Android Phone Project