구차니의 잡동사니 모음

$ cat temp_ss.c

/*

 *  dht11.c:

 *      Simple test program to test the wiringPi functions

 *      DHT11 test

 */

#include <wiringpi.h>

#include <stdio.h>

#include <stdlib.h>

#include <stdint.h>

#include <sys/time.h>

#define TRIG_PIN        4

#define ECHO_PIN        5

float mach = 34300.0;

void read_sr04_dat()

{

        int counter = 0;

        struct timeval start_point, end_point;

        double operating_time;

        double len;

        pinMode(TRIG_PIN, OUTPUT);

        pinMode(ECHO_PIN, INPUT);

        digitalWrite(TRIG_PIN, LOW);

//      delay(500); // 500 msec

        digitalWrite(TRIG_PIN, HIGH);

        delayMicroseconds( 10 );

        digitalWrite(TRIG_PIN, LOW);

        while ( digitalRead(ECHO_PIN) == LOW)

        {

                counter++;

                delayMicroseconds( 1 );

                if ( counter == 38000 )

                {

                        return;

                }

        }

        gettimeofday(&start_point, NULL);

        while ( digitalRead(ECHO_PIN) == HIGH)

        {

                counter++;

                delayMicroseconds( 1 );

                if ( counter == 38000 )

                {

                        return;

                }

        }

        gettimeofday(&end_point, NULL);

        operating_time = (double)(end_point.tv_sec)+(double)(end_point.tv_usec)/1000000.0-(double)(start_point.tv_sec)-(double)(start_point.tv_usec)/1000000.0;

        len = operating_time * mach / 2;

        printf("%f sec %4.2f cm %d\n",operating_time, len, counter);

}

#define MAXTIMINGS      85

#define DHTPIN          7

int dht11_dat[5] = { 0, 0, 0, 0, 0 };

void read_dht11_dat()

{

        uint8_t laststate       = HIGH;

        uint8_t counter         = 0;

        uint8_t j               = 0, i;

        float   f; /* fahrenheit */

        dht11_dat[0] = dht11_dat[1] = dht11_dat[2] = dht11_dat[3] = dht11_dat[4] = 0;

        /* pull pin down for 18 milliseconds */

        pinMode( DHTPIN, OUTPUT );

        digitalWrite( DHTPIN, LOW );

        delay( 18 );

        /* then pull it up for 40 microseconds */

        digitalWrite( DHTPIN, HIGH );

        delayMicroseconds( 40 );

        /* prepare to read the pin */

        pinMode( DHTPIN, INPUT );

        /* detect change and read data */

        for ( i = 0; i < MAXTIMINGS; i++ )

        {

                counter = 0;

                while ( digitalRead( DHTPIN ) == laststate )

                {

                        counter++;

                        delayMicroseconds( 1 );

                        if ( counter == 255 )

                        {

                                break;

                        }

                }

                laststate = digitalRead( DHTPIN );

                if ( counter == 255 )

                        break;

                /* ignore first 3 transitions */

                if ( (i >= 4) && (i % 2 == 0) )

                {

                        /* shove each bit into the storage bytes */

                        dht11_dat[j / 8] <<= 1;

                        if ( counter > 16 )

                                dht11_dat[j / 8] |= 1;

                        j++;

                }

        }

        /*

         * check we read 40 bits (8bit x 5 ) + verify checksum in the last byte

         * print it out if data is good

         */

        if ( (j >= 40) &&

             (dht11_dat[4] == ( (dht11_dat[0] + dht11_dat[1] + dht11_dat[2] + dht11_dat[3]) & 0xFF) ) )

        {

                f = dht11_dat[2] * 9. / 5. + 32;

                printf( "Humidity = %d.%d %% Temperature = %d.%d *C (%.1f *F)\n",

                        dht11_dat[0], dht11_dat[1], dht11_dat[2], dht11_dat[3], f );

                printf("%f -> ",mach);

                mach = 33150 + (60 * dht11_dat[2]);

                printf("%f\n",mach);

        }else  {

                f = dht11_dat[2] * 9. / 5. + 32;

                printf( "Humidity = %d.%d %% Temperature = %d.%d *C (%.1f *F) ",

                                                dht11_dat[0], dht11_dat[1], dht11_dat[2], dht11_dat[3], f );

                printf( "- Data not good, skip j[%d] par[%d] calc[%d]\n",

                j, dht11_dat[4], (dht11_dat[0] + dht11_dat[1] + dht11_dat[2] + dht11_dat[3]) & 0xFF

                 );

        }

}

int main( void )

{

        unsigned char tempcount = 0;

        if ( wiringPiSetup() == -1 )

                exit( 1 );

        while ( 1 )

        {

                        if(tempcount % 10 == 0)

                                read_dht11_dat();

                        tempcount++;

                        read_sr04_dat();

                delay( 1000 ); /* wait 1sec to refresh */

        }

        return(0);

}  

$ cat sr04.c

/*

 *  dht11.c:

 *      Simple test program to test the wiringPi functions

 *      DHT11 test

 */

#include <wiringPi.h>

#include <stdio.h>

#include <stdlib.h>

#include <stdint.h>

#include <sys/time.h>

#define TRIG_PIN        4

#define ECHO_PIN        5

void read_sr04_dat()

{

        int counter = 0;

        struct timeval start_point, end_point;

        double operating_time;

        double len;

        pinMode(TRIG_PIN, OUTPUT);

        pinMode(ECHO_PIN, INPUT);

        digitalWrite(TRIG_PIN, LOW);

//      delay(500); // 500 msec

        digitalWrite(TRIG_PIN, HIGH);

        delayMicroseconds( 10 );

        digitalWrite(TRIG_PIN, LOW);

        while ( digitalRead(ECHO_PIN) == LOW)

        {

                counter++;

                delayMicroseconds( 1 );

                if ( counter == 38000 )

                {

                        return;

                }

        }

        gettimeofday(&start_point, NULL);

        while ( digitalRead(ECHO_PIN) == HIGH)

        {

                counter++;

                delayMicroseconds( 1 );

                if ( counter == 38000 )

                {

                        return;

                }

        }

        gettimeofday(&end_point, NULL);

        operating_time = (double)(end_point.tv_sec)+(double)(end_point.tv_usec)/1000000.0-(double)(start_point.tv_sec)-(double)(start_point.tv_usec)/1000000.0;

        len = operating_time * 34300 / 2;

        printf("%f sec %4.2f cm %d\n",operating_time, len, counter);

}

int main( void )

{

        if ( wiringPiSetup() == -1 )

                exit( 1 );

        while ( 1 )

        {

                read_sr04_dat();

                delay( 100 ); /* wait 1sec to refresh */

        }

        return(0);

$ sudo apt-get install redmine

Reading package lists... Done

Building dependency tree

Reading state information... Done

The following extra packages will be installed:

  bundler dbconfig-common fonts-droid ghostscript imagemagick-common libev4 libfcgi-ruby1.9.1

  libfcgi0ldbl libgmp-dev libgmpxx4ldbl libgs9 libgs9-common libijs-0.35 libjbig2dec0

  libjs-coffeescript libjs-jquery-ui libjs-prototype libjs-scriptaculous libjsoncpp0 liblqr-1-0

  libmagickcore-6.q16-2 rake redmine-sqlite ruby-actionmailer ruby-actionpack

  ruby-actionpack-action-caching ruby-actionview ruby-activemodel ruby-activerecord

  ruby-activesupport ruby-arel ruby-atomic ruby-awesome-nested-set ruby-blankslate ruby-builder

  ruby-celluloid ruby-coderay ruby-coffee-rails ruby-coffee-script ruby-coffee-script-source

  ruby-dev ruby-erubis ruby-execjs ruby-fcgi ruby-ffi ruby-hike ruby-hmac ruby-i18n

  ruby-jbuilder ruby-jquery-rails ruby-json ruby-listen ruby-mail ruby-mime-types ruby-minitest

  ruby-multi-json ruby-net-http-persistent ruby-net-ldap ruby-oj ruby-openid ruby-passenger

  ruby-polyglot ruby-protected-attributes ruby-rack ruby-rack-openid ruby-rack-test ruby-rails

  ruby-rails-observers ruby-railties ruby-rb-inotify ruby-redcarpet ruby-request-store

  ruby-rmagick ruby-sass ruby-sass-rails ruby-sdoc ruby-spring ruby-sprockets

  ruby-sprockets-rails ruby-sqlite3 ruby-thor ruby-thread-safe ruby-tilt ruby-timers

  ruby-treetop ruby-turbolinks ruby-tzinfo ruby-uglifier ruby-yajl ruby2.1-dev sqlite3 zip

Suggested packages:

  virtual-mysql-client mysql-client postgresql-client ghostscript-x libgmp10-doc libmpfr-dev

  coffeescript libjs-jquery-ui-docs libmagickcore-6.q16-2-extra bzr cvs darcs mercurial

  subversion ruby-builder-doc rails ruby-passenger-doc ruby-compass treetop doc-base sqlite3-doc

The following NEW packages will be installed:

  bundler dbconfig-common fonts-droid ghostscript imagemagick-common libev4 libfcgi-ruby1.9.1

  libfcgi0ldbl libgmp-dev libgmpxx4ldbl libgs9 libgs9-common libijs-0.35 libjbig2dec0

  libjs-coffeescript libjs-jquery-ui libjs-prototype libjs-scriptaculous libjsoncpp0 liblqr-1-0

  libmagickcore-6.q16-2 rake redmine redmine-sqlite ruby-actionmailer ruby-actionpack

  ruby-actionpack-action-caching ruby-actionview ruby-activemodel ruby-activerecord

  ruby-activesupport ruby-arel ruby-atomic ruby-awesome-nested-set ruby-blankslate ruby-builder

  ruby-celluloid ruby-coderay ruby-coffee-rails ruby-coffee-script ruby-coffee-script-source

  ruby-dev ruby-erubis ruby-execjs ruby-fcgi ruby-ffi ruby-hike ruby-hmac ruby-i18n

  ruby-jbuilder ruby-jquery-rails ruby-json ruby-listen ruby-mail ruby-mime-types ruby-minitest

  ruby-multi-json ruby-net-http-persistent ruby-net-ldap ruby-oj ruby-openid ruby-passenger

  ruby-polyglot ruby-protected-attributes ruby-rack ruby-rack-openid ruby-rack-test ruby-rails

  ruby-rails-observers ruby-railties ruby-rb-inotify ruby-redcarpet ruby-request-store

  ruby-rmagick ruby-sass ruby-sass-rails ruby-sdoc ruby-spring ruby-sprockets

  ruby-sprockets-rails ruby-sqlite3 ruby-thor ruby-thread-safe ruby-tilt ruby-timers

  ruby-treetop ruby-turbolinks ruby-tzinfo ruby-uglifier ruby-yajl ruby2.1-dev sqlite3 zip

0 upgraded, 93 newly installed, 0 to remove and 0 not upgraded.

Need to get 850 kB/21.7 MB of archives.

After this operation, 83.3 MB of additional disk space will be used.

Do you want to continue? [Y/n] 

$ sudo apt-get install apache2 mysql-server redmine redmine-mysql libapache2-mod-passenger

$ sudo ln -s /usr/share/redmine/public /var/www/redmine

$ sudo chown -R www-data:www-data /var/www/redmine

$ sudo vi /etc/apache2/sites-available/redmine.conf

DocumentRoot /var/www/

PassengerDefaultUser www-data

<Location /redmine>

RailsEnv production

RackBaseURI /redmine

Options -MultiViews

</Location>

$ sudo a2dissite 000-default

$ sudo a2ensite redmine

$ sudo /etc/init.d/apache2 reload

$ sudo /etc/init.d/apache2 restart