Thu, 08 May 2014 22:36:51 +0200
Added library code to read DHT11 temperature/humidity sensor
/***************************************************************************** * Copyright (C) 2014 * * Michiel Broek <mbroek at mbse dot eu> * * This file is part of the mbsePi-apps * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2, or (at your option) any * later version. * * mbsePi-apps is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with EC-65K; see the file COPYING. If not, write to the Free * Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. *****************************************************************************/ #include "../lib/mbselib.h" #include "dht11.h" #ifdef HAVE_WIRINGPI_H extern int dht11_valid; extern int dht11_temperature; extern int dht11_humidity; int main(int argc, char *argv[]) { int PIN = 3; if (wiringPiSetup() == -1) return 0; dht11Init(PIN, 0, 6); dht11Read(); if (dht11_valid) { fprintf(stdout, "DHT11: temperature %d degrees, humidity %d%%\n", dht11_temperature, dht11_humidity); } else { fprintf(stdout, "DHT11: no valid data or sensor not connected\n"); } exit(0); } #else int main(int argc, char *argv[]) { fprintf(stderr, "This program does nothing without the wiringPi library\n"); return 0; } #endif