apps/shell/shell-sensortweet.c

   1 /*
   2  * Copyright (c) 2009, Swedish Institute of Computer Science.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the Institute nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * This file is part of the Contiki operating system.
  30  *
  31  * $Id: shell-sensortweet.c,v 1.2 2009/09/09 21:06:51 adamdunkels Exp $
  32  */
  33
  34 /**
  35  * \file
  36  *         Shell command that posts sensor data to Twitter
  37  * \author
  38  *         Adam Dunkels <adam@sics.se>
  39  */
  40
  41 #include "contiki.h"
  42 #include "contiki-net.h"
  43 #include "cfs/cfs.h"
  44 #include "dev/sht11.h"
  45 #include "shell.h"
  46 #include "twitter.h"
  47
  48 #include <stdio.h>
  49 #include <string.h>
  50
  51 #define MAX_USERNAME_PASSWORD  32
  52
  53 /*---------------------------------------------------------------------------*/
  54 PROCESS(sensortweet_process, "sensortweet");
  55 SHELL_COMMAND(sensortweet_command,
  56               "sensortweet",
  57               "sensortweet <username:password>: post sensor data to Twitter",
  58               &sensortweet_process);
  59 /*---------------------------------------------------------------------------*/
  60 PROCESS_THREAD(sensortweet_process, ev, data)
  61 {
  62   char message[140];
  63   char username_password[MAX_USERNAME_PASSWORD];
  64   int temp;
  65   uint16_t humidity;
  66   uint16_t battery_indicator;
  67   int humidity_converted;
  68   PROCESS_BEGIN();
  69
  70   /* Open the username/password file. */
  71   if(data == NULL) {
  72     PROCESS_EXIT();
  73   }
  74   strncpy(username_password, data, MAX_USERNAME_PASSWORD);
  75   /*  username_password[len] = 0;*/
  76
  77   temp = sht11_temp();
  78   humidity = sht11_humidity();
  79   battery_indicator = sht11_sreg() & 0x40? 1: 0;
  80
  81   humidity_converted = (int)(-4L + 405L * humidity / 10000L);
  82   if(humidity_converted > 100) {
  83     humidity_converted = 100;
  84   }
  85   if(humidity_converted < 0) {
  86     humidity_converted = 0;
  87   }
  88
  89   if(!battery_indicator) {
  90     snprintf(message, sizeof(message), "Contiki #sensortweet %d.%d: Temperature %d.%d C, humidity %d%%",
  91              rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1],
  92              (temp / 10 - 396) / 10,
  93              (temp / 10 - 396) % 10,
  94              humidity_converted);
  95   } else {
  96     snprintf(message, sizeof(message), "Contiki #sensortweet %d.%d: Battery low",
  97              rimeaddr_node_addr.u8[0], rimeaddr_node_addr.u8[1]);
  98   }
  99
 100   twitter_post((uint8_t *)username_password, message);
 101
 102   PROCESS_END();
 103 }
 104 /*---------------------------------------------------------------------------*/
 105 void
 106 shell_sensortweet_init(void)
 107 {
 108   shell_register_command(&sensortweet_command);
 109 }
 110 /*---------------------------------------------------------------------------*/