RF SNIFFER – Rx433 Tx433
https://github.com/sui77/rc-switch
/*
* RF Sniffer (C) Elia Yehuda 2014
*
* This program was coded.
*
* No warranty whatsoever.
* Using this program will cause something, most likely problems.
*
*/
#include <RCSwitch.h>
// number of times to resend sniffed value. use 0 to disable.
#define RESEND_SNIFFED_VALUES 10
// ye, thats the led pin #
#define LED_PIN 13
// class for 315 receiver & transmitter
RCSwitch rf315Switch = RCSwitch();
// class for 434 receiver & transmitter
RCSwitch rf434Switch = RCSwitch();
void setup()
{
// print fast to console
Serial.begin(115200);
// 315 receiver on interrupt #0 (pin #2)
rf315Switch.enableReceive(0);
// 315 transmitter on pin #4
rf315Switch.enableTransmit(4);
// how many resends
rf315Switch.setRepeatTransmit(RESEND_SNIFFED_VALUES);
// 434 receiver on interrupt #1 (pin #3)
rf434Switch.enableReceive(1);
// 434 transmitter on pin #5
rf434Switch.enableTransmit(5);
// how many resends
rf434Switch.setRepeatTransmit(RESEND_SNIFFED_VALUES);
Serial.println("[+] Listening");
}
// simple decimal-to-binary-ascii procedure
char *tobin32(unsigned long x)
{
static char b[33];
b[32] = '\0';
for ( int z = 0; z < 32; z++) {
b[31 - z] = ((x >> z) & 0x1) ? '1' : '0';
}
return b;
}
void process_rf_value(RCSwitch rfswitch, int rf)
{
char str[120];
unsigned long value;
// flash a light to show transmission
digitalWrite(LED_PIN, true);
value = rfswitch.getReceivedValue();
if (value) {
sprintf(str, "[+] %d Received: %s / %010lu / %02d bit / Protocol = %d",
rf, tobin32(value), value, rfswitch.getReceivedBitlength(), rfswitch.getReceivedProtocol() );
} else {
sprintf(str, "[-] %d Received: Unknown encoding (0)", rf);
}
Serial.println(str);
// resend the sniffed value (RESEND_SNIFFED_VALUES times)
rfswitch.send(value, rfswitch.getReceivedBitlength());
// reset the switch to allow more data to come
rfswitch.resetAvailable();
// stop light to show end of transmission
digitalWrite(LED_PIN, false);
}
void loop()
{
if (rf315Switch.available()) {
process_rf_value(rf315Switch, 315);
}
if (rf434Switch.available()) {
process_rf_value(rf434Switch, 434);
}
}