Dmitry Shalnoff's Git Repository - 433Utils_NP/blob - xPi_utils/433rx.cpp

   1 /*
   2         433mHz module reader
   3
   4         Created by Dmitry Shalnov (c) 2019 for Interplay Medium™ project.
   5
   6         Based on RFSniffer.cpp http://code.google.com/p/rc-switch/ by @justy
   7         License: MIT
   8 */
   9
  10 #include "../rc-switch/RCSwitch.h"
  11 #include <stdlib.h>
  12 #include <stdio.h>
  13 #include <unistd.h>
  14
  15 RCSwitch mySwitch;
  16
  17 void usage(void)
  18 {
  19         printf("433mHz module reader. Created by Dmitry Shalnoff [interplaymedium.org] © 2019, Ver 0.0.2.\n");
  20         printf("Usage:\n");
  21         printf(" -l     pulse length (optional)\n");
  22         printf(" -p     GPIO pin\n");
  23         exit (8);
  24 }
  25
  26
  27 int main(int argc, char *argv[]) {
  28
  29         int pulseLength = 0;
  30         int PIN = 0; // default
  31
  32         // commandline parser
  33
  34         int argCnt = argc;
  35
  36         if ( argCnt > 2 && argv[1][0] == '-' && argv[ argCnt - 1 ][0] != '-' ){
  37
  38                 argCnt--;
  39
  40                 while (argCnt > 0) {
  41
  42                         if ( argv[ argCnt ][0] == '-' && argv[ argCnt + 1 ][0] != '-' ) {
  43
  44                                 switch (argv[ argCnt ][1])
  45                                 {
  46                                         case 'l':
  47                                                 pulseLength = atoi( argv[ argCnt + 1 ] );
  48                                                 printf("Pulse length: %d\n",pulseLength);
  49                                                 break;
  50
  51                                         case 'p':
  52                                                 PIN = atoi( argv[ argCnt + 1 ] );
  53                                                 printf("GPIO: %d\n", PIN);;
  54                                                 break;
  55
  56                                         default:
  57                                                 printf("Wrong Argument: %s\n", argv[ argCnt ]);
  58                                                 usage();
  59                                 }
  60                         }
  61
  62                         argCnt--;
  63                 }
  64         } else {
  65                 usage();
  66         }
  67
  68         // ---------------------
  69
  70         if(wiringPiSetup() == -1) {
  71                 printf("wiringPiSetup failed, exiting...");
  72                 return 0;
  73         }
  74
  75         pinMode (PIN, INPUT);
  76         mySwitch = RCSwitch();
  77         if (pulseLength != 0) mySwitch.setPulseLength(pulseLength);
  78         mySwitch.enableReceive( PIN );
  79
  80         while(1) {
  81
  82 #ifdef NANOPI
  83                 mySwitch.handleNoInterrupt( PIN ); // polling handler, nanoPi WiringNP (no interrupts supported)
  84 #endif
  85
  86                 if (mySwitch.available()) {
  87
  88                         int value = mySwitch.getReceivedValue();
  89
  90                         if (value == 0) {
  91                                 printf("Unknown encoding\n");
  92                         } else {
  93                                 printf("Received %i\n", mySwitch.getReceivedValue() );
  94                         }
  95
  96                         fflush(stdout);
  97                         mySwitch.resetAvailable();
  98                 }
  99 #ifndef NANOPI
 100                 usleep(100);
 101 #endif
 102
 103         }
 104
 105         exit(0);
 106
 107
 108 }
 109