Easy test remote control module 433 Mhz | transmitter , Receiver and Ardiuno | wireless test

🎯 433 MHz Transmitter & Receiver Arduino Project

Is project me maine RadioHead Library (RH_ASK) ka use karke simple wireless communication banaya hai.
Transmitter “hello” message bhejta hai aur Receiver usse serial monitor me print karta hai.


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⚙️ Important Note:
👉 Before uploading to Arduino IDE, replace [ and ] with 👉 angled brackets.
Otherwise, it will show an error while including libraries.

angled brackets is not used in discription because of YouTube don't allow to use angled brackets in discription

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📡 Transmitter Side Code 👇👇👇

#include [RH_ASK.h]
#include [SPI.h] // Required for RadioHead

RH_ASK driver; // Default TX pin = 12

void setup() {
driver.init();
}

void loop() {
const char *msg = "hello";
driver.send((uint8_t *)msg, strlen(msg));
driver.waitPacketSent();
delay(500);
}


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📡 Receiver Side Code 👇👇👇

#include [RH_ASK.h]
#include [SPI.h]

RH_ASK driver; // Default RX pin = 11

void setup() {
Serial.begin(9600);
if (!driver.init())
Serial.println("init failed");
}

void loop() {
uint8_t buf[RH_ASK_MAX_MESSAGE_LEN];
uint8_t buflen = sizeof(buf);

if (driver.recv(buf, &buflen)) {
Serial.print("Received: ");
Serial.write(buf, buflen);
Serial.println();
}
}


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📦 Required Components:

Arduino UNO (2 pieces)

433 MHz RF Transmitter Module

433 MHz RF Receiver Module

Jumper Wires

Breadboard



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💡 Library Used:
➡️ RadioHead Library (RH_ASK)
You can install it from Arduino IDE → Sketch → Include Library → Manage Libraries → Search “RadioHead”


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