1、Transmitter Module

Technical Parameter

Frequency : 315Mhz

Working Voltage : 3～12V DC

Working current：3～45 (mA)

Frequency stability : 0.037ppm/℃

Temperature range：-10℃ ~ 70℃

Transmission rate : ≤10Kbps

Receiver Sensibility: -105dbm

2、Receiver Module

Technical Parameters

Operating Voltage: DC 5V

Operating Frequency: 315 Mhz

Operating Current: 2.5mA

Quiescent Current: ≤5mA (5.0VDC)

Transmission rate:≤9.6Kbps

Receiver Sensitivity:-107dBm (50Ω)

Encoding: Fixed Code
   
Modulation: ASK-OOK

Operating Temperature: -30 ℃ ~ +80 ℃


This 315MHz RF Module Kit including one 315MHz RF Receiver Module and one 315MHz RF Transmitter Module. This is the update version of this module kit, and the useage is the same as old versin as below:

 

This group RF modules contain: transmitter and receiver module, it can supply 4 channels to communicate, that's to say if you use them to control mini car, they have just four direction key.

This is transmitter module :

This is cooresponding receiver :

If you want to experiment these two module, only need to connect them to sensor shield by cables, for example you can connect the first channel of the transmitter module with the Arduino digital I/O pin 7, and the receiver to Arduino digital I/O pin 8 :

I wish once push one button, RF transmitter module send the signal, and after the receiver module receive the signal, light the Arduino's LED.

So you can connect Arduino digital I/O pin 2 with a digital button module, in order to receive the signal :

Copy the test code into Arduino:

int ledPin = 13;
int switchPin = 2;
int sendPin = 7;
int recvPin = 8;
int value = 0;

void setup() {
  pinMode(switchPin, INPUT);
  pinMode(recvPin, INPUT);
  pinMode(ledPin, OUTPUT);
  pinMode(sendPin, OUTPUT);   

}

void loop() {
  value = digitalRead(switchPin);
  if (HIGH == value) {
    digitalWrite(sendPin, HIGH);
  } else {
    digitalWrite(sendPin, LOW);
  }

  value = digitalRead(recvPin);
  if (HIGH == value) {
    digitalWrite(ledPin, HIGH);
  } else {
    digitalWrite(ledPin, LOW);
  }

}

Once push one button, RF transmitter module send the signal, and receiver module receive the signal, at last light the LED of pin 13.




 

Click to download the schematic diagram and test code

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