Introduction: Interfacing RF Transmitter and Receiver Module With Arduino

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In this project, we will employ RF Transmitter and Receiver Module with Arduino Uno to send the data from RF transmitter to RF Receiver.

Step 1: About RF Module(FS1000A 433mHz):

This RF module comprises of an RF Transmitter and an RF Receiver. The transmitter/receiver (Tx/Rx) pair operates at a frequency of 433 MHz. An RF transmitter receives serial data and transmits it wirelessly through RF through its antenna connected at pin4. The transmission occurs at the rate of 1Kbps – 10Kbps. The transmitted data is received by an RF receiver operating at the same frequency as that of the transmitter.

Step 2: Components Required:

- Arduino board with cable 2

- RF Module 1

- Jumper wires

- Breadboard 1

- LED 1

You can buy these components from elegocart.

Step 3: Transmitter Setup:

Step 4: Receiver Setup:

Step 5: Code:

RF Module Transmitter Code:

#include
const int ledPin = 13; char *data; void setup() { pinMode(ledPin,OUTPUT); vw_set_ptt_inverted(true); vw_set_tx_pin(12); vw_setup(2000); }

void loop() { data="1"; vw_send((uint8_t *)data, strlen(data)); vw_wait_tx(); digitalWrite(ledPin,HIGH); delay(2000); data="0"; vw_send((uint8_t *)data, strlen(data)); vw_wait_tx(); digitalWrite(ledPin,LOW); delay(2000); }

RF Module Receiver Code:

#include
const int ledPin = 13; const int datain = 11; void setup() { Serial.begin(9600); vw_set_ptt_inverted(true); vw_set_rx_pin(datain); vw_setup(2000); pinMode(ledPin, OUTPUT); vw_rx_start(); } void loop() { uint8_t buf[VW_MAX_MESSAGE_LEN]; uint8_t buflen = VW_MAX_MESSAGE_LEN; if (vw_get_message(buf, &buflen)) { Serial.print(buf[0]); if(buf[0]=='1') { digitalWrite(ledPin,HIGH); Serial.print(buf[0]); } if(buf[0]=='0') { digitalWrite(ledPin,LOW); Serial.print(buf[0]); } } }


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