Please select other codes for this lecture from the links below.
Related or required files and link to this lesson
This is lesson 2 of 5 lessons. In this lesson we learn how to capture and decode infrared code from Infrared Remote Controller. Either Black Remote
, white remote or your TV remote.
Using this code we can turn ON/OFF a relay to control any load like AC bulb.
We need the IRremote library to be installed first. Full details is shown in the video. We will use VS1838B IR or infrared receiver. The receiver
is sold just a bare part of installed on PCB. This tutorial will show you to use both.
/*
* Original library from - http://arcfn.com
*
* Lesson 101 code 2
* This Arduino code decoes any remotes code and then you can control AC load using relay
* sold on eBay for Arduino.
* You have to select the type of your remote as Black or White in the code bellow
* and also select your receiver 1838 either as PCB or bare module. See video for details
*
* Modefied/Written by Ahmad Shamshiri
* on July 31, 2018 at 20:33 in Ajax, Ontario, Canada
* for Robojax.com
* Watch video instruction for this code:https://youtu.be/LVd9_i-BQcg
* Get other Arduino codes from Robojax.com
This video is part of Arduino Step by Step Course which starts here: https://youtu.be/-6qSrDUA5a8
If you found this tutorial helpful, please support me so I can continue creating
content like this. You can make donation using PayPal https://bit.ly/donate-robojax
* * This code is "AS IS" without warranty or liability. Free to be used as long as you keep this note intact.*
* This code has been download from Robojax.com
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
#include <IRremote.h>
int RECV_PIN = 11;
const char type ='W';// W for white, B for black. Must keep single quotes like 'B' or 'W'
const boolean PCB = 1;// if receiver is PCB set to 1, if not set to 0. See video for details
boolean displayCode = true;// to display remote code. if not, set to false
//***** Relay settings begins
const int RELAY_PIN = 2;//
const String ON="3";// turn relay ON with + key on remote
const String OFF="1";// turn relay OFF with - key on remote
//**** Relay settings ends
IRrecv irrecv(RECV_PIN);
// this is array holding codes for White Remote when used with PCB verion of receiver
unsigned int whiteRemotePCB[] ={
0xE318261B, // CH-
0x511DBB, // CH
0xEE886D7F, // CH+
0x52A3D41F, // |<<
0xD7E84B1B, // >>|
0x20FE4DBB, // >||
0xF076C13B, // -
0xA3C8EDDB, // +
0x12CEA6E6, // EQ
0xC101E57B, // 0
0x97483BFB, // 100+
0xF0C41643, // 200+
0x9716BE3F, // 1
0x3D9AE3F7, // 2
0x6182021B, // 3
0x8C22657B, // 4
0x488F3CBB, // 5
0x449E79F, // 6
0x32C6FDF7, // 7
0x1BC0157B, // 8
0x3EC3FC1B // 9
};
// this is array holding codes for White Remote when used with non-PCB verion of receiver
unsigned int whiteRemote[] ={
0xFFA25D, // CH-
0xFF629D, // CH
0xFFE21D, // CH+
0xFF22DD, // |<<
0xFF02FD, // >>|
0xFFC23D, // >||
0xFFE01F, // -
0xFFA857, // +
0xFF906F, // EQ
0xFF6897, // 0
0xFF9867, // 100+
0xFFB04F, // 200+
0xFF30CF, // 1
0xFF18E7, // 2
0xFF7A85, // 3
0xFF10EF, // 4
0xFF38C7, // 5
0xFF5AA5, // 6
0xFF42BD, // 7
0xFF4AB5, // 8
0xFF52AD // 9
};
// key lables of white remote
String whiteRemoteKey[] ={
"CH-",
"CH",
"CH+",
"|<<",
">>|",
">||",
"-",
"+",
"EQ",
"0",
"100+",
"200+",
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"8",
"9"
};
// this is array holding codes for Black Remote when used with non-PCB verion of receiver
unsigned int blackRemote[] ={
0xFF629D, // ^
0xFF22DD, // <
0xFF02FD, // OK
0xFFC23D, // >
0xFFA857, // v
0xFF6897, // 1
0xFF9867, // 2
0xF0C41643, // 3
0xFF30CF, // 4
0xFF18E7, // 5
0xFF7A85, // 6
0xFF10EF, // 7
0xFF38C7, // 8
0xFF5AA5, // 9
0xFF42BD, // *
0xFF4AB5, // 0
0xFF52AD // #
};
// this is array holding codes for Black Remote when used with PCB verion of receiver
unsigned int blackRemotePCB[] ={
0x511DBB, // ^
0x52A3D41F, // <
0xD7E84B1B, // OK
0x20FE4DBB, // >
0xA3C8EDDB, // v
0xC101E57B, // 1
0x97483BFB, // 2
0xF0C41643, // 3
0x9716BE3F, // 4
0x3D9AE3F7, // 5
0x6182021B, // 6
0x8C22657B, // 7
0x488F3CBB, // 8
0x449E79F, // 9
0x32C6FDF7, // *
0x1BC0157B, // 0
0x3EC3FC1B // #
};
// Black remote key names
String blackRemoteKey[] ={
"^",
"<",
"OK",
">",
"v",
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"8",
"9",
"*",
"0",
"#"
};
decode_results results;
void setup()
{
Serial.begin(9600);
// In case the interrupt driver crashes on setup, give a clue
// to the user what's going on.
Serial.println("Robojax IR Decode");
Serial.println("Control Relay with Remote");
irrecv.enableIRIn(); // Start the receiver
pinMode(RELAY_PIN,OUTPUT);// define a pin for relay as OUTPUT
digitalWrite(RELAY_PIN, HIGH);// set relay to OFF at the begining
}
void loop() {
if (irrecv.decode(&results)) {
if(displayCode)Serial.println(results.value, HEX);
robojaxValidateCode(results.value);// used the "robojaxValidateCode" bellow
irrecv.resume(); // Receive the next value
}
delay(100);
}
/*
* function: robojaxValidateCode
* validates the remote code and prints correct key name
* cd is code poassed from the loop
* Written by A. S. for Robojax
*/
void robojaxValidateCode(int cd)
{
// Robojax IR Remote decoder
int found=0;
if(type =='W' && !PCB)
{
// Robojax IR White Remote decoder
// if tyepe is set to 'W' (white remote) and PCB=0 then check Black remote code
for(int i=0; i< sizeof(whiteRemote)/sizeof(int); i++)
{
if(whiteRemote[i] ==cd)
{
Serial.print("Key pressed:");
Serial.println(whiteRemoteKey[i]);
relayAction(whiteRemoteKey[i]);// take action
found=1;
}// if matched
}// for
}else if(type =='W' && PCB){
// Robojax IR White Remote decoder
// if tyepe is set to 'W' (white remote) and PCB=1 then check Black remote code
for(int i=0; i< sizeof(whiteRemotePCB)/sizeof(int); i++)
{
if(whiteRemotePCB[i] ==cd)
{
Serial.print("Key pressed:");
Serial.println(whiteRemoteKey[i]);
relayAction(whiteRemoteKey[i]);// take action
found=1;
}// if matched
}// for
}else if(type =='B' && PCB){
// Robojax IR White Remote decoder
// if tyepe is set to 'B' (black remote) and PCB=1 then check Black remote code
for(int i=0; i< sizeof(blackRemotePCB)/sizeof(int); i++)
{
// Robojax IR black Remote decoder
if(blackRemotePCB[i] ==cd)
{
Serial.print("Key pressed:");
Serial.println(blackRemoteKey[i]);
relayAction(blackRemoteKey[i]);// take action
found=1;
}// if matched
}// for
}else{
// if tyepe is set to 'B' (black remote) and PCB =0 then check Black remote code
for(int i=0; i< sizeof(blackRemote)/sizeof(int); i++)
{
// Robojax IR black Remote decoder
if(blackRemote[i] ==cd)
{
Serial.print("Key pressed:");
Serial.println(blackRemoteKey[i]);
relayAction(blackRemoteKey[i]);// take action
found=1;
}// if matched
}// for
}// else
if(!found){
if(cd !=0xFFFFFFFF)
{
Serial.println("Key unkown");
}
}// found
}// robojaxValidateCode end
/*
*
* relayAction()
* receives string "value" as input and based on the settings,
* turns relya pin HIGH or LOW
*/
void relayAction(String value)
{
// Robojax IR Relay control
if(value == ON)
{
digitalWrite(RELAY_PIN, LOW);// Turn relay ON
Serial.println("Relay Turned ON");
}
if(value == OFF)
{
digitalWrite(RELAY_PIN, HIGH);// Turn relay OFF
Serial.println("Relay Turned OFF");
}
}//relayAction end