Project features

1) Using Arduino, programmable.

2) Suitable for TV/air conditioner/home automation appliances, etc.

3) There are 11 buttons to perform various operations.

4) Small size

5) Rechargeable

Supply

1) Breadboard

2) Infrared light

3) Tactile buttons

4) 1k resistor x11

5) 220 ohm resistor

6) PCB and wires

7) Battery (3.7V)

Circuit connection diagram

Circuit schematic

Code

//sagar saini : hackster saini_sagar_7294 follow us on instagram, hackaday profile link:https://hackaday.io/project/182316-arduino-based-ir-remote-decoder
//
//Universal IR Remote Controller

#include <IRremote.h>
#include "LowPower.h"

IRsend irsend;

const int b1  = 2;
const int b2  = 4;
const int b3  = 5;
const int b4  = 6;
const int b5  = 7;
const int b6  = 8;
const int b7  = 9;
const int b8  = 10;
const int b9  = 11;
const int b10 = 12;

int timer;
int modeCounter = 0;

void wakeUp() {  timer = 0;
}

void setup() {  pinMode(b1, INPUT);  pinMode(b2, INPUT);  pinMode(b3, INPUT);  pinMode(b4, INPUT);  pinMode(b5, INPUT);  pinMode(b6, INPUT);  pinMode(b7, INPUT);  pinMode(b8, INPUT);  pinMode(b9, INPUT);  pinMode(b10, INPUT);
}

void loop() {  attachInterrupt(0, wakeUp, HIGH);  while (timer < 10000) {    if (digitalRead(b1) == HIGH) {      timer = 0;      delay(50);      irsend.sendNEC(0x0000, 32);     //Enter Remote Hex Value    }
    if (digitalRead(b2) == HIGH) {      timer = 0;      delay(50);      irsend.sendNEC(0x0000, 32);     //Enter Remote Hex Value    }
    if (digitalRead(b3) == HIGH) {      timer = 0;      delay(50);      irsend.sendNEC(0x0000, 32);     //Enter Remote Hex Value    }
    if (digitalRead(b4) == HIGH) {      timer = 0;      delay(50);      irsend.sendNEC(0x0000, 32);     //Enter Remote Hex Value    }
    if (digitalRead(b5) == HIGH) {      timer = 0;      delay(50);      irsend.sendNEC(0x0000, 32);     //Enter Remote Hex Value    }        if (digitalRead(b6) == HIGH) {      timer = 0;      delay(50);      irsend.sendNEC(0x0000, 32);     //Enter Remote Hex Value    }        if (digitalRead(b7) == HIGH) {      timer = 0;      delay(50);      irsend.sendNEC(0x0000, 32);     //Enter Remote Hex Value    }        if (digitalRead(b8) == HIGH) {      timer = 0;      delay(50);      irsend.sendNEC(0x0000, 32);     //Enter Remote Hex Value    }        if (digitalRead(b9) == HIGH) {      timer = 0;      delay(50);      irsend.sendNEC(0x0000, 32);     //Enter Remote Hex Value    }        if (digitalRead(b10) == HIGH) {      timer = 0;      delay(50);      irsend.sendNEC(0x0000, 32);     //Enter Remote Hex Value    }    delay(1);    timer = timer + 1;
  }    LowPower.powerDown(SLEEP_FOREVER, ADC_OFF, BOD_OFF);
}