src/devices/inovalley-kw9015b.c

   1 #include "rtl_433.h"
   2 #include "util.h"
   3 /* Inovalley kw9015b rain and Temperature weather station
   4  *
   5  * Copyright (C) 2015 Alexandre Coffignal
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  */
  11
  12 extern uint8_t reverse8(uint8_t x);
  13
  14 static int kw9015b_callback(bitbuffer_t *bitbuffer) {
  15         bitrow_t *bb = bitbuffer->bb;
  16
  17
  18         int i,iRain,device;
  19         unsigned char chksum;
  20         float fTemp;
  21         char buf[255];
  22         for(i=0;i<5;i++){
  23                 if(bitbuffer->bits_per_row[i]!=36){
  24                         /*10 24 bits frame*/
  25                 }else{
  26                         //AAAAAAAA BBBBBBBB BBBBBBBB CCCCCCCC DDDD
  27                         //A : ID
  28                         //B : Temp
  29                         //C : Rain
  30                         //D : checksum
  31
  32                         device=reverse8(bb[i][0]);
  33                         fTemp=(float)((signed short)(reverse8(bb[i][2])*256+reverse8(bb[i][1]))) /160;
  34                         iRain = reverse8(bb[i][3]);
  35                         chksum=((reverse8(bb[i][0])>>4)+(reverse8(bb[i][0])&0x0F)+
  36                                 (reverse8(bb[i][1])>>4)+(reverse8(bb[i][1])&0x0F)+
  37                                 (reverse8(bb[i][2])>>4)+(reverse8(bb[i][2])&0x0F)+
  38                                 (reverse8(bb[i][3])>>4)+(reverse8(bb[i][3])&0x0F));
  39
  40                         if( (chksum&0x0F) == ( reverse8(bb[i][4]) &0x0F)){
  41                                 fprintf(stdout, "\nSensor        = Temperature and rain event\n");
  42                                 fprintf(stdout, "Device        = %d\n", device);
  43                                 fprintf(stdout, "Temp          = %f\n",fTemp);
  44                                 fprintf(stdout, "Rain          = %d\n",iRain);
  45                                 fprintf(stdout, "checksum      = %02x==%02x\n",chksum&0xF,reverse8(bb[i][4]));
  46                                 fprintf(stdout, "Received Data = %02X %02X %02X %02X %02X\n",
  47                                 reverse8(bb[i][0]),
  48                                 reverse8(bb[i][1]),
  49                                 reverse8(bb[i][2]),
  50                                 reverse8(bb[i][3]),
  51                                 reverse8(bb[i][4]));
  52
  53
  54                                 return 1;
  55                         }
  56                 }
  57         }
  58
  59
  60         return 0;
  61
  62 }
  63
  64 r_device kw9015b = {
  65   .name          = "Inovalley kw9015b rain and Temperature weather station",
  66   .modulation    = OOK_PULSE_PPM_RAW,
  67   .short_limit   = 3500,
  68   .long_limit    = 4800,
  69   .reset_limit   = 10000,
  70   .json_callback = &kw9015b_callback,
  71   .disabled      = 1,
  72   .demod_arg     = 0,
  73 };