Please select other codes for this lecture from the links below.
Related or required files and link to this lesson
This is lesson 4 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 control a DC Motor with IR remote.
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 infrared library from - http://arcfn.com
* Lesson 101 code 4
* This is the Arduino code for L293d DC motor Driver
Using IR remote control DC motor rotating it CW and CCW and STOP it.
*
// Writeen by Ahmad S. for Robojax.com on
// on Aug 10, 2018 at 22:03 at city of Ajax, Ontario, Canada
// This code is AS is witout warranty. You can share if you keep this note with the code
* 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/>.
*/
// DC motor control
#define P1A 2 // define pin 2 as for P1A
#define P2A 7 // define pin 7 as for P2A
#define EN12 8 // define pin 8 as for 1,2EN enable
// remote settings start
#include <IRremote.h>
int RECV_PIN = 11;
const char type ='B';// W for white, B for black. Must keep single quotes like 'B' or 'W'
const boolean PCB = 0;// if receiver is PCB set to 1, if not set to 0. See video for details
boolean displayCode = false;// to display remote code. if not, set to false
// IR remote settings
const String RIGHT=">";// move motor to the right (CW) with this key on remote
const String LEFT ="<";// move motor to the left (CCW) with this key on remote
const String STOP ="OK";// stop motor with this key on remote
// remote settings end
IRrecv irrecv(RECV_PIN);
// this is array holding codes for White Remote when used with PCB version 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 version 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 version 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 version 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;
/*
* Permission granted to share this code given that this
* note is kept with the code.
* Disclaimer: this code is "AS IS" and for educational purpose only.
*
*/
void setup() {
// L293 Motor Contro Code by Robojax.com 2018025
Serial.begin(9600);// setup Serial Monitor to display information
pinMode(P1A, OUTPUT);// define pin as OUTPUT for P1A
pinMode(P2A, OUTPUT);// define pin as OUTPUT for P2A
pinMode(EN12, OUTPUT);// define pin as OUTPUT for 1,2EN
Serial.println("Robojax IR Decode");
Serial.println("Motor Control with Remote");
irrecv.enableIRIn(); // Start the receiver
// L293 Motor Contro Code by Robojax.com 20180810
}
void loop() {
// L293d Motor Contro Code with IR by Robojax.com 20180810
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(50);// 50 millisecond delay
// L293d Motor Contro Code with IR by Robojax.com 20180810
}//loop end
/*
* 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]);
motorAction(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]);
motorAction(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]);
motorAction(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]);
motorAction(blackRemoteKey[i]);// take action
found=1;
}// if matched
}// for
}// else
if(!found){
if(cd !=0xFFFFFFFF)
{
Serial.println("Key unkown");
}
}// found
}// robojaxValidateCode end
/*
*
* motorAction()
* receives string "value" as input and based on the settings,
* turns motor CW, CCW or STOP
*/
void motorAction(String value)
{
// Robojax IR motor control
if(value == RIGHT)
{
L293D('R',1);// rotate motor to the right (CCW)
}
if(value == LEFT)
{
L293D('L',1);// rotate motor to the left (CW)
}
if(value == STOP)
{
L293D('R',0);// stop motor
}
}//motorAction end
/*
* L293D(char dir, int en)
* dir is character either L for CW direction
* or R for CCW direction
* en is integer 1 to totate, 0 for stop
*/
void L293D(char dir, int en)
{
if(dir =='L')
{
if(en ==0){
Serial.println(" CW Motor Stopped");
}else{
Serial.println(" Rotating CW");
}
digitalWrite(EN12 ,en);// Enable 1A and 2A
digitalWrite(P1A,HIGH);// send + or HIGH singal to P1A
digitalWrite(P2A,LOW);// send - or LOW singal to P2A
}else{
if(en ==0){
Serial.println(" CCW Motor Stopped");
}else{
Serial.println(" Rotating CCW");
}
digitalWrite(EN12 ,en);// Disable 1A and 2A
digitalWrite(P1A,LOW);// send + or HIGH singal to P1A
digitalWrite(P2A,HIGH);// send - or LOW singal to P2A
}
}//L293D end