433Mhz-Receiver-Raspberry/receiver.cpp at master · schattenmann80/433Mhz-Receiver-Raspberry · GitHub

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#include "rcswitch/RCSwitch.h"
#include <stdlib.h>
#include <stdio.h>
#include <wiringPi.h>
#include <iostream>
#include <string>
#include <fstream>

void checkInput();

void receiveMessageAndOutput(int pin, int massage);

RCSwitch mySwitch;

void checkInput(){
	while(1)
	{
		std::string input;
		std::cin >> input;
		if(input == "exit"){
			printf("Stoppe Programm");
			exit(0);
		}
	}
}


void receiveMessageAndOutput(int pin, int massage){

	pinMode (pin, OUTPUT);

	while(1) {

		delay(10);

		if (mySwitch.available()) {

			int value = mySwitch.getReceivedValue();

			if (value == 0) {

			} else if(value == massage) {
				digitalWrite (pin, HIGH) ;	// On
				delay (500) ;		// mS
				digitalWrite (pin, LOW) ;	// Off
			}
			mySwitch.resetAvailable();
		}
	}
}

void decode(int value){
	static int sReturn[12];
	int nReturnPos = 0;

	for (int i = 0; i < 12; i++) {
		sReturn[11 - i] = (value & (3 << (2 * i))) >> (2 * i);
	}
	/*
	for (int i = 0; i < 12; i++) {
		printf("%i", sReturn[i]);
	}

	printf("\n"); */

	static char group[5];
	for (int i = 0; i < 5; i++) {
		group[i] = (sReturn[nReturnPos++] == 0) ? '1' : '0';
	}
	printf("group %s ", group);

	int number = 0;
	for (int i = 1; i < 6; i++) {
		if(sReturn[nReturnPos++] == 0)
		{
			number = i;
		}
	}
	printf("number %i ", number);

	printf("state %s \n \n", sReturn[nReturnPos++] == 0 ? "1" : "0");

}

int main(int argc, char *argv[]) {

	// This pin is not the first pin on the RPi GPIO header!
	// Consult https://projects.drogon.net/raspberry-pi/wiringpi/pins/
	// for more information.
	int PIN = 2;

	if(wiringPiSetup() == -1) {
	    printf("wiringPiSetup failed, exiting...");
	    	return 0;
	}


	mySwitch = RCSwitch();
	mySwitch.enableReceive(PIN);  // Receiver on interrupt 0 => that is pin #2

	if( argc > 2 )
	{
		if(strcmp(argv[1], "-l") == 0)
		{
			printf("Listen mode\n");

			while(1)
			{

				delay(10);

				if ( mySwitch.available() )
				{

					int value = mySwitch.getReceivedValue();

					if (value == 0)
					{
						printf("Unknown encoding\n");
					} else
					{
						printf( "Received message code:%i\n", mySwitch.getReceivedValue() );
						decode( mySwitch.getReceivedValue() );
					}
					mySwitch.resetAvailable();
				}
			}

		}
		else if( strcmp(argv[1], "-s" ) == 0)
		{
			printf("service go \n");
			std::ifstream infile("/home/pi/433Mhz-Receiver-Raspberry/init");

			int outputPin = 1;
			int code = 0;

			std::string line;

			std::getline(infile, line);
			outputPin = atoi( line.c_str() );

			std::getline(infile, line);
			code = atoi( line.c_str() );

			printf("Pin %i\n", outputPin);

			printf("Code %i\n", code);

			receiveMessageAndOutput(outputPin, code);

		}
		else if( argc > 3 )
		{
			int outputPin = 1;
			outputPin = atoi(argv[1]);

			int code = atoi(argv[2]);

			receiveMessageAndOutput(outputPin, code);
		}
	}
	else
	{
		printf( "receiver [-l|-s|<pin><code>]\n" );
	}


	exit(0);


}