Introduction
For many projects, we might need to use an IR receiver for remote controlling many aspects of the project using an IR remote.
So while coding we need to hard code the decoded IR signals in our program so to make that job easy we are just going to build a small circuit with an Arduino nano, IR receiver and an OLED to display the decoded signals.
Video
Hardware Used
| Components | AliExpress | Amazon.com | Amazon.in | Banggood | Utsource |
| Arduino Nano |  | | | | |
| IR Receiver | | | | | |
| OLED .96″ 64×128 | | | | | |
Circuit
| Arduino Nano | IR Receiver | OLED |
| D12 | OUT | |
| (A5) SCL | SCL | |
| (A4) SDA | SDA | |
| 5V | VCC | |
| 3.3V | VCC | |
| GND | GND | GND |
Code
//www.diyusthad.com
//www.youtube.com/c/diyusthad
#include <IRremote.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#define OLED_RESET 4
Adafruit_SSD1306 display(128, 64, &Wire, OLED_RESET);
int RECV_PIN = 12;
IRrecv irrecv(RECV_PIN);
decode_results results;
const unsigned char myBitmap [] PROGMEM = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff, 0xff, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xff, 0xff, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff, 0xff, 0xff, 0xff, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xff, 0xff, 0xff, 0xff, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xff, 0xff, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x01, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x80, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x03, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x03, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xfe, 0x3f, 0xe0, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x0f, 0xff, 0xff, 0xff, 0xff, 0xfc, 0x1e, 0x70, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x0f, 0xff, 0xff, 0xff, 0xff, 0xfe, 0x1c, 0x30, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, 0x8c, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xff, 0xff, 0xff, 0xff, 0x8e, 0x3c, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xff, 0xff, 0xff, 0xff, 0x87, 0xfc, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x38, 0x03, 0xf8, 0x21, 0xfc, 0x07, 0xc0, 0x60, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x78, 0x00, 0x78, 0x20, 0xfc, 0x03, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x78, 0x00, 0x38, 0x20, 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x78, 0x00, 0x18, 0x30, 0x70, 0x10, 0x03, 0xfe, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x78, 0x70, 0x0f, 0xf0, 0x30, 0x00, 0x01, 0xfe, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x78, 0x7c, 0x08, 0x38, 0x00, 0x03, 0xf8, 0x60, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x78, 0x7e, 0x08, 0x3c, 0x00, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xf8, 0x7f, 0x08, 0x3c, 0x01, 0xfe, 0x3e, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xf8, 0x7f, 0x08, 0x3e, 0x01, 0xfc, 0x1f, 0xff, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xf8, 0x7f, 0x08, 0x3f, 0x03, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xf8, 0x7f, 0x08, 0x3f, 0x07, 0xf8, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xf8, 0x7e, 0x08, 0x3f, 0x87, 0xfc, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xf8, 0x7c, 0x08, 0x3f, 0x87, 0xfc, 0x3f, 0xff, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x78, 0x70, 0x08, 0x3f, 0x87, 0xff, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x78, 0x00, 0x18, 0x3f, 0x87, 0x8f, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x78, 0x00, 0x78, 0x3f, 0x87, 0x07, 0xe0, 0xfe, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x78, 0x00, 0x78, 0x3f, 0x86, 0x00, 0x03, 0xfe, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x78, 0x03, 0xf8, 0x3f, 0x86, 0x20, 0x07, 0xfe, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x7f, 0xff, 0xff, 0xff, 0xfe, 0x07, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x39, 0x80, 0x02, 0x26, 0x0f, 0x07, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x39, 0x80, 0x02, 0x22, 0x07, 0xff, 0xe1, 0xfc, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x39, 0x80, 0x12, 0x02, 0x43, 0xff, 0x02, 0x7c, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x19, 0x81, 0x10, 0x00, 0x63, 0xfe, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x19, 0x80, 0x10, 0x00, 0x63, 0xfe, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x09, 0x00, 0x12, 0x00, 0x63, 0xfe, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x12, 0x08, 0x03, 0xfe, 0x0e, 0x30, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x12, 0x18, 0x07, 0xff, 0x1f, 0xe0, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x03, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xe0, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x03, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xc0, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x01, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x80, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xff, 0xff, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xf8, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xff, 0xff, 0xff, 0xff, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff, 0xff, 0xff, 0xff, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3f, 0xff, 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xff, 0xff, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff, 0xff, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0xe0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
void setup()
{
Serial.begin(9600);
Serial.println("Enabling IRin");
irrecv.enableIRIn(); // Start the receiver
Serial.println("Enabled IRin");
display.begin(SSD1306_SWITCHCAPVCC, 0x3D); //or 0x3C
display.clearDisplay(); //for Clearing the display
display.drawBitmap(0, 0, myBitmap, 128, 64, WHITE); // display.drawBitmap(x position, y position, bitmap data, bitmap width, bitmap height, color)
display.display();
delay(3000);
display.clearDisplay();
display.setTextSize(2); // Draw 2X-scale text
display.setTextColor(WHITE);
display.setCursor(0, 27);
display.print("IR DECODER");
display.display();
}
void loop() {
if (irrecv.decode(&results)) {
Serial.println(results.value, HEX);
String code = String((results.value,HEX));
display.clearDisplay();
display.setTextSize(2); // Draw 2X-scale text
display.setTextColor(WHITE);
display.setCursor(0, 27);
display.print(results.value,HEX);
display.display();
irrecv.resume(); // Receive the next value
}
delay(100);
}
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