87 lines
2.2 KiB
C
87 lines
2.2 KiB
C
/*
|
|
* rht03.c:
|
|
* Driver for the MaxDetect series sensors
|
|
*
|
|
* Copyright (c) 2012-2013 Gordon Henderson. <projects@drogon.net>
|
|
***********************************************************************
|
|
* This file is part of wiringPi:
|
|
* https://projects.drogon.net/raspberry-pi/wiringpi/
|
|
*
|
|
* wiringPi is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* wiringPi 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 Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
|
|
***********************************************************************
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <wiringPi.h>
|
|
#include <maxdetect.h>
|
|
|
|
#define RHT03_PIN 7
|
|
|
|
/*
|
|
***********************************************************************
|
|
* The main program
|
|
***********************************************************************
|
|
*/
|
|
|
|
int main (void)
|
|
{
|
|
int result, temp, rh ;
|
|
int minT, maxT, minRH, maxRH ;
|
|
|
|
int numGood, numBad ;
|
|
|
|
wiringPiSetup () ;
|
|
piHiPri (55) ;
|
|
|
|
minT = 1000 ;
|
|
maxT = -1000 ;
|
|
|
|
minRH = 1000 ;
|
|
maxRH = -1000 ;
|
|
|
|
numGood = numBad = 0 ;
|
|
|
|
for (;;)
|
|
{
|
|
delay (100) ;
|
|
|
|
result = readRHT03 (RHT03_PIN, &temp, &rh) ;
|
|
|
|
if (!result)
|
|
{
|
|
printf (".") ;
|
|
fflush (stdout) ;
|
|
++numBad ;
|
|
continue ;
|
|
}
|
|
|
|
++numGood ;
|
|
|
|
if (temp < minT) minT = temp ;
|
|
if (temp > maxT) maxT = temp ;
|
|
if (rh < minRH) minRH = rh ;
|
|
if (rh > maxRH) maxRH = rh ;
|
|
|
|
printf ("\r%6d, %6d: ", numGood, numBad) ;
|
|
printf ("Temp: %5.1f, RH: %5.1f%%", temp / 10.0, rh / 10.0) ;
|
|
printf (" Max/Min Temp: %5.1f:%5.1f", maxT / 10.0, minT / 10.0) ;
|
|
printf (" Max/Min RH: %5.1f:%5.1f", maxRH / 10.0, minRH / 10.0) ;
|
|
|
|
printf ("\n") ;
|
|
}
|
|
|
|
return 0 ;
|
|
}
|