├── .gitignore ├── doc └── auriol_protocol_v20.pdf ├── auriol-reader-screenshot.png ├── scripts ├── auriol-start.sh ├── auriol-watchdog.sh └── auriol-restarter.sh ├── www ├── pitemp.php ├── trans.php ├── temperature24h.plt ├── rain30d.plt └── meteo.php ├── reader ├── db.h ├── makefile ├── db.c └── auriol-reader.c ├── .gitattributes ├── README.md └── LICENSE /.gitignore: -------------------------------------------------------------------------------- 1 | auriol-reader -------------------------------------------------------------------------------- /doc/auriol_protocol_v20.pdf: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/yu55/auriol_reader/HEAD/doc/auriol_protocol_v20.pdf -------------------------------------------------------------------------------- /auriol-reader-screenshot.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/yu55/auriol_reader/HEAD/auriol-reader-screenshot.png -------------------------------------------------------------------------------- /scripts/auriol-start.sh: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | 3 | # Start the server again 4 | script -qc ../reader/auriol-reader 5 | -------------------------------------------------------------------------------- /www/pitemp.php: -------------------------------------------------------------------------------- 1 | 2 | 
 3 | 
12 | 
13 | 
14 | 


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/www/trans.php:
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 1 | 
 2 | 
 3 | 
12 | 
13 | 
14 | 


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/scripts/auriol-watchdog.sh:
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 1 | #!/bin/bash
 2 | service=auriol-reader
 3 | 
 4 | if (( $(ps -ef | grep -v grep | grep $service | wc -l) > 0 ))
 5 | then
 6 | echo "$service is running!!!"
 7 | else
 8 | ( cd /home/pi/repositories/auriol_reader/scripts ; ./auriol-restarter.sh )
 9 | fi
10 | 
11 | 


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/scripts/auriol-restarter.sh:
--------------------------------------------------------------------------------
 1 | #!/bin/sh
 2 | 
 3 | cd /home/pi/repositories/auriol_reader/scripts
 4 | 
 5 | # Kill
 6 | killall auriol-reader
 7 | 
 8 | #DATE=$(date +"%Y%m%d%H%M")
 9 | #mv output-auriol.log output-auriol_$DATE.log
10 | 
11 | # Start the server again
12 | screen -S auriol -d -m ./auriol-start.sh
13 | 


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/reader/db.h:
--------------------------------------------------------------------------------
 1 | #ifndef AURIOL_DB_H_
 2 | #define AURIOL_DB_H_
 3 | 
 4 | void initializeDatabase();
 5 | void savePluviometer(float amount);
 6 | void saveTemperature(float temperature);
 7 | void saveHumidity(unsigned int humidity);
 8 | void saveWind(float speed, float gust, unsigned int direction);
 9 | 
10 | #endif
11 | 


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/reader/makefile:
--------------------------------------------------------------------------------
 1 | # File to compile the auriol-reader
 2 | 
 3 | # TODO
 4 | # Create an install target to place
 5 | # - auriol-reader in /usr/local/bin
 6 | # - start-up scripts in /etc/init.d and /etc/rcX.d
 7 | # - Webb pages in /var/www/auriol-reader and config file in /etc/apache2/sites-*
 8 | 
 9 | all: clean auriol-reader
10 | 
11 | auriol-reader: auriol-reader.c
12 | 	gcc -Wall -ansi -o auriol-reader -I/usr/local/include -L/usr/local/lib -lwiringPi -lrt -lm -lsqlite3 auriol-reader.c db.c
13 | 
14 | clean:
15 | 	- rm -f auriol-reader
16 | 


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/.gitattributes:
--------------------------------------------------------------------------------
 1 | # Auto detect text files and perform LF normalization
 2 | * text=auto
 3 | 
 4 | # Custom for Visual Studio
 5 | *.cs     diff=csharp
 6 | *.sln    merge=union
 7 | *.csproj merge=union
 8 | *.vbproj merge=union
 9 | *.fsproj merge=union
10 | *.dbproj merge=union
11 | 
12 | # Standard to msysgit
13 | *.doc	 diff=astextplain
14 | *.DOC	 diff=astextplain
15 | *.docx diff=astextplain
16 | *.DOCX diff=astextplain
17 | *.dot  diff=astextplain
18 | *.DOT  diff=astextplain
19 | *.pdf  diff=astextplain
20 | *.PDF	 diff=astextplain
21 | *.rtf	 diff=astextplain
22 | *.RTF	 diff=astextplain
23 | 


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/www/temperature24h.plt:
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 1 | #!/usr/local/bin/gnuplot -persist
 2 | set terminal png size 640,240 enhanced font "Helvetica,8"
 3 | set output '/var/www/tmp/temperature24h.png'
 4 | 
 5 | set title "Temperatura powietrza za ostanie 24 godziny"
 6 | unset multiplot
 7 | unset key
 8 | set style data lines
 9 | set grid ytics lc rgb "#bbbbbb" lw 1 lt 0
10 | set grid xtics lc rgb "#bbbbbb" lw 1 lt 0
11 | set datafile separator "|"
12 | set xdata time
13 | set timefmt "%Y-%m-%d %H:%M:%S"
14 | set format x "%H:%M"
15 | set x2tics
16 | set x2data time
17 | set format x2 "%H:%M"
18 | unset mx2tics
19 | set y2tics
20 | set xrange ["`date --date='24 hours ago' +'%Y-%m-%d %H:%M:%S'`":"`date +'%Y-%m-%d %H:%M:%S'`"]
21 | set x2range ["`date --date='24 hours ago' +'%Y-%m-%d %H:%M:%S'`":"`date +'%Y-%m-%d %H:%M:%S'`"]
22 | 
23 | plot "< sqlite3 /var/local/auriol-db.sl3  \"SELECT created, temperature FROM temperature WHERE created > datetime('now','localtime','-1 day')\"" using 1:2
24 | 
25 | 


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/www/rain30d.plt:
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 1 | #!/usr/local/bin/gnuplot -persist
 2 | set terminal png size 640,240 enhanced font "Helvetica,8"
 3 | set output '/var/www/tmp/rain30d.png'
 4 | 
 5 | set title "Opady atmosferyczne za ostatnie 30 dni"
 6 | unset multiplot
 7 | unset key
 8 | set grid ytics lc rgb "#bbbbbb" lw 1 lt 0
 9 | set grid xtics lc rgb "#bbbbbb" lw 1 lt 0
10 | set datafile separator "|"
11 | set xdata time
12 | set timefmt "%Y-%m-%d"
13 | set format x "%m-%d"
14 | set mxtics
15 | set boxwidth 0.5 relative
16 | set style fill solid 1.0
17 | set x2tics
18 | set x2data time
19 | set format x2 "%m-%d"
20 | set mx2tics
21 | set y2tics
22 | set xrange ["`date --date='30 days ago' +%Y-%m-%d`":"`date +%Y-%m-%d`"]
23 | set x2range ["`date --date='30 days ago' +%Y-%m-%d`":"`date +%Y-%m-%d`"]
24 | 
25 | plot "< sqlite3 /var/local/auriol-db.sl3  \"SELECT strftime('%Y-%m-%d', created) AS day,  MAX(amount)-MIN(amount) FROM pluviometer WHERE created > datetime('now','localtime','-30 day') GROUP BY day\"" using 1:2 with boxes lc rgb "blue"
26 | 
27 | 


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/README.md:
--------------------------------------------------------------------------------
 1 | # auriol-reader
 2 | This repository contains AURIOL H13726 / Ventus W155 weather stations radio transmissions decoder application for Raspberry Pi. Application obtains data through a 433.92 MHz RF wireless receiver module (AUREL RX-4MM5++/F, simple chinese XY-MK-5V or other similar) connected to GPIO pin, decodes this data, prints it to `stdout` and saves in SQLite database.
 3 | 
 4 | ![auriol-reader-screenshot.png](auriol-reader-screenshot.png?raw=true "View of data received from AURIOL H13726 weather station via auriol-reader")
 5 | 
 6 | ## Repository layout
 7 | * `doc` - additional documentation
 8 | * `reader` - decoder application
 9 | * `scripts` - some scripts to make `auriol-reader` work continuously and start after reboot
10 | * `www` - some examples of primitive web pages showing data received by `auriol-reader`
11 | 
12 | ## Installation
13 | * This project uses Wiring Pi library (http://wiringpi.com/) so it should be installed first.
14 | * Secondly the `libsqlite3-dev` package is required.
15 | * Clone this repository, `cd` into `reader` directory, execute `make` and project should compile.
16 | 
17 | ## Running
18 | * connect receiver module output signal to Raspberry GPIO27
19 | * execute application with root privileges: `sudo ./auriol-reader`
20 | * observe decoded data on standard output and in `/var/local/auriol-db.sl3` database
21 | 
22 | ## Additional notes
23 | * If different GPIO pin must be used check how pins are numbered in Wiring Pi (http://wiringpi.com/pins/) and modify constant `RECIEVE_PIN` in `reader/auriol-reader.c` source code file (e.g. GPIO27 is pin 2 in Wiring Pi).
24 | * If nothing is visible on `stdout` that means decoder cannot recognize incoming impulses and some calibration might be needed - please check `reader/auriol-reader.c` for constants `SYNCHRO_LENGTH`, `SEPARATOR_LENGTH`, `ZERO_LENGTH`, `ONE_LENGTH`, `LENGTHS_MARGIN`. Setting these constants to proper values is critical for the decoder to be able to recognize data in incoming transmissions from weather station instruments. Note that `auriol-reader` consumes 100% CPU (because of constantly polling GPIO pin connected to receiver hardware) and running other process with heavy CPU usage will result in slower GPIO polling so the decoder simply won't recognize data for given constants configuration. You may also want to tweak these values on newer, faster Raspberry Pi models (faster than my own Model B Revision 2.0).
25 | 
26 | 


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/www/meteo.php:
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  1 | 
  2 |     
  3 |         Sportowa8 Meteo
  4 |         
  5 |         
 11 |     
 12 | 
 13 | 
Sportowa8 Meteo (stacja pogody AURIOL H13726)

 14 | ";
 18 | echo "";
 19 | echo "";
 20 | 
 21 | $results = $db->query("SELECT created, temperature FROM temperature ORDER BY created DESC LIMIT 1;");
 22 | $created = " ";
 23 | while ($row = $results->fetchArray(SQLITE3_ASSOC)) {
 24 | 
 25 |     $temperature = number_format($row['temperature'], 1);
 26 |     $created = $row['created'];
 27 |     echo "";
 28 |     echo "Temperatura powietrza {$temperature} ℃";
 29 |     echo "";
 30 | }
 31 | $result = $results->finalize();
 32 | 
 33 | $results = $db->query("SELECT min(temperature) AS tmin, max(temperature) AS tmax FROM temperature WHERE created > datetime('now','localtime','-1 day');");
 34 | while ($row = $results->fetchArray(SQLITE3_ASSOC)) {
 35 | 
 36 |     $temperature = number_format($row['tmin'], 1);
 37 |     echo "";
 38 |     echo "Minimalna temperatura powietrza za ostatnie 24 godziny {$temperature} ℃";
 39 |     echo "";
 40 | 
 41 |     $temperature = number_format($row['tmax'], 1);
 42 |     echo "";
 43 |     echo "Maksymalna temperatura powietrza za ostatnie 24 godziny {$temperature} ℃";
 44 |     echo "";
 45 | }
 46 | $result = $results->finalize();
 47 | 
 48 | echo "";
 49 | echo "Ostatnia aktualizacja bazy danych  {$created}";
 50 | echo "";
 51 | 
 52 | echo "";
 53 | 
 54 | echo "
";
 55 | 
 56 | echo "";
 57 | echo "";
 58 | echo "";
 59 | 
 60 | $results = $db->query("SELECT (SELECT amount FROM pluviometer WHERE created > datetime('now','localtime','-118 minute') ORDER BY created DESC LIMIT 1) - (SELECT amount FROM pluviometer WHERE created > datetime('now','localtime','-118 minute') ORDER BY created ASC LIMIT 1) AS rain1h;");
 61 | while ($row = $results->fetchArray(SQLITE3_ASSOC)) {
 62 | 
 63 |     $rain1h = number_format($row['rain1h'], 2);
 64 |     echo "";
 65 |     echo "";
 66 |     echo "";
 67 | }
 68 | $result = $results->finalize();
 69 | 
 70 | $results = $db->query("SELECT (SELECT amount FROM pluviometer WHERE created > datetime('now','localtime','-1 day') ORDER BY created DESC LIMIT 1) - (SELECT amount FROM pluviometer WHERE created > datetime('now','localtime','-1 day') ORDER BY created ASC LIMIT 1) AS rain24h;");
 71 | while ($row = $results->fetchArray(SQLITE3_ASSOC)) {
 72 | 
 73 |     $rain24h = number_format($row['rain24h'], 2);
 74 |     echo "";
 75 |     echo " ";
 76 |     echo "";
 77 | }
 78 | $result = $results->finalize();
 79 | 
 80 | $results = $db->query("SELECT (SELECT amount FROM pluviometer WHERE created > datetime('now','localtime','-1 day') ORDER BY created DESC LIMIT 1) - (SELECT amount FROM pluviometer WHERE created > datetime('now','localtime','-7 day') ORDER BY created ASC LIMIT 1) AS rain7d;");
 81 | while ($row = $results->fetchArray(SQLITE3_ASSOC)) {
 82 | 
 83 |     $rain7d = number_format($row['rain7d'], 2);
 84 |     echo "";
 85 |     echo " ";
 86 |     echo "";
 87 | }
 88 | $result = $results->finalize();
 89 | 
 90 | $results = $db->query("SELECT (SELECT amount FROM pluviometer WHERE created > datetime('now','localtime','-1 month') ORDER BY created DESC LIMIT 1) - (SELECT amount FROM pluviometer WHERE created > datetime('now','localtime','-1 month') ORDER BY created ASC LIMIT 1) AS rain30days;");
 91 | while ($row = $results->fetchArray(SQLITE3_ASSOC)) {
 92 | 
 93 |     $rain30days = number_format($row['rain30days'], 2);
 94 |     echo "";
 95 |     echo " ";
 96 |     echo "";
 97 | }
 98 | $result = $results->finalize();
 99 | 
100 | $results = $db->query("SELECT created FROM pluviometer ORDER BY created DESC LIMIT 1;");
101 | while ($row = $results->fetchArray(SQLITE3_ASSOC)) {
102 | 
103 |     echo "";
104 |     echo "";
105 |     echo "";
106 | }
107 | $result = $results->finalize();
108 | 
109 | echo "
Opad atmosferyczny za ostatnią godzinę {$rain1h} mm
Opad atmosferyczny za ostatnie 24 godziny {$rain24h} mm
Opad atmosferyczny za ostatnie 7 dni {$rain7d} mm
Opad atmosferyczny za ostatnie 30 dni {$rain30days} mm
Ostatnia aktualizacja bazy danych {$row['created']}
";
110 | 
111 | exec('gnuplot temperature24h.plt');
112 | 
113 | exec('gnuplot rain30d.plt');
114 | ?>
115 | 

116 | temperature24h
117 | 

118 | 

119 | rain30d
120 | 
121 | 
122 | 
123 | 
124 | 
125 | 
126 | 


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/reader/db.c:
--------------------------------------------------------------------------------
  1 | #include "db.h"
  2 | #include 
  3 | #include 
  4 | #include 
  5 | #include 
  6 | #include 
  7 | #include 
  8 | #include 
  9 | 
 10 | #define DB_FILENAME  "/var/local/auriol-db.sl3"
 11 | #define M_PI         3.14159265358979323846	/* pi */
 12 | #define TEMP_DIFF    10
 13 | #define WIND_SAVE_INTERVALL 3600.0	/* (double) Intervall to save wind data in seconds */
 14 | #define WIND_SAMPLES 120	/* WIND_SAMPLES = WIND_SAVE_INTERVALL / 30 */
 15 | 
 16 | #ifdef LANGUAGE_ENGLISH
 17 | static const char LANG_DB_ERROR_OPENING[] = "ERROR: Can not open database!";
 18 | static const char LANG_DB_PLUVIOMETER_QUERY[] =
 19 |     "\nERROR in Pluviometer query: SQLite returned Error Code: %i.\n";
 20 | static const char LANG_DB_TEMP_QUERY[] =
 21 |     "\nERROR in Temperature query: SQLite returned Error Code: %i.\n";
 22 | static const char LANG_DB_TEMP_DIFF[] =
 23 |     "\nWARNING: Temperature difference out of bonds (%f to %f). Data will NOT be saved!\n";
 24 | static const char LANG_DB_CREATE_TBL[] =
 25 |     "ERROR: Could not create database table! Error Msg: %s.\n%s\n";
 26 | static const char LANG_DB_HUMID_DIFF[] =
 27 |     "\nWARNING: Humidity value out of bonds (%i %%). Data will NOT be saved!\n";
 28 | static const char LANG_DB_WIND_QUERY[] =
 29 |     "\nERROR in Wind query: SQLite returned Error Code: %i.\n\"%s\"\n";
 30 | 
 31 | #else
 32 | static const char LANG_DB_ERROR_OPENING[] =
 33 |     "Can not open database. Dying. Bye bye.";
 34 | static const char LANG_DB_PLUVIOMETER_QUERY[] =
 35 |     "\nSomething went wrong when inserting pluviometer data into DB. Error code: %i.\n";
 36 | static const char LANG_DB_TEMP_QUERY[] =
 37 |     "\nSomething went wrong when inserting temperature into DB. Error code: %i.\n";
 38 | static const char LANG_DB_TEMP_DIFF[] =
 39 |     "\nWARNING! Temp jump from %f to %f too big. Temp won't be recorded!\n";
 40 | static const char LANG_DB_CREATE_TBL[] =
 41 |     "ERROR: Could not create database table! Error Msg: %s.\n%s\n";
 42 | static const char LANG_DB_HUMID_DIFF[] =
 43 |     "\nWARNING: Humidity value out of bonds (%i %%). Data will NOT be saved!\n";
 44 | static const char LANG_DB_WIND_QUERY[] =
 45 |     "\nERROR in Wind query: SQLite returned Error Code: %i.\n\"%s\"\n";
 46 | #endif
 47 | 
 48 | static const char *SQL_CREATE_TABLE[] = {
 49 | 	"CREATE TABLE IF NOT EXISTS pluviometer( created DATETIME, amount  DECIMAL(10,2));",
 50 | 	"CREATE TABLE IF NOT EXISTS temperature( created DATETIME, amount  DECIMAL(4,1));",
 51 | 	"CREATE TABLE IF NOT EXISTS humidity( created DATETIME, amount  TINYINT);",
 52 | 	"CREATE TABLE IF NOT EXISTS wind( created DATETIME, speed DECIMAL(3,1), gust DECIMAL(3,1), direction SMALLINT );"
 53 | };
 54 | 
 55 | static const char *SQL_CREATE_INDEX[] = {
 56 | 	"CREATE INDEX IF NOT EXISTS ix_pluviometer_created ON pluviometer(created);",
 57 | 	"CREATE INDEX IF NOT EXISTS ix_temperature_created ON temperature(created);",
 58 | 	"CREATE INDEX IF NOT EXISTS ix_humidity_created ON humidity(created);",
 59 | 	"CREATE INDEX IF NOT EXISTS ix_wind_created ON wind(created);"
 60 | };
 61 | 
 62 | sqlite3 *conn;
 63 | int error = 0;
 64 | struct tm *local;
 65 | time_t t;
 66 | 
 67 | void initializeDatabase()
 68 | {
 69 | 	char *errMsg = 0;
 70 | 	int i;
 71 | 	/* Open database */
 72 | 	error = sqlite3_open(DB_FILENAME, &conn);
 73 | 	if (error) {
 74 | 		fprintf(stderr, LANG_DB_ERROR_OPENING);
 75 | 		exit(3);
 76 | 	}
 77 | 	/* Create database tables and indices, if not exits */
 78 | 	for (i = 0; i < 4; i++) {
 79 | 		error = sqlite3_exec(conn, SQL_CREATE_TABLE[i], 0, 0, &errMsg);
 80 | 		if (error != SQLITE_OK) {
 81 | 			fprintf(stderr, LANG_DB_CREATE_TBL, errMsg,
 82 | 				SQL_CREATE_TABLE[i]);
 83 | 			exit(4);
 84 | 		}
 85 | 
 86 | 		error = sqlite3_exec(conn, SQL_CREATE_INDEX[i], 0, 0, &errMsg);
 87 | 		if (error != SQLITE_OK) {
 88 | 			fprintf(stderr, LANG_DB_CREATE_TBL, errMsg,
 89 | 				SQL_CREATE_INDEX[i]);
 90 | 			exit(4);
 91 | 		}
 92 | 	}
 93 | }
 94 | 
 95 | void savePluviometer(float amount)
 96 | {
 97 | 	static signed int old_hour = -1;
 98 | 	static float old_value = -FLT_MAX;
 99 | 
100 | 	t = time(NULL);
101 | 	local = localtime(&t);
102 | 
103 | 	/* Store if value has changed or older than an hour */
104 | 	if (old_hour != local->tm_hour || old_value < amount) {
105 | 		char query[1024] = " ";
106 | 		sprintf(query,
107 | 			"INSERT INTO pluviometer VALUES (datetime('now', 'localtime'), %.2f);",
108 | 			amount);
109 | 		error = sqlite3_exec(conn, query, 0, 0, 0);
110 | 		if (error != SQLITE_OK) {
111 | 			fprintf(stderr, LANG_DB_PLUVIOMETER_QUERY, error);
112 | 			exit(5);
113 | 		}
114 | 	}
115 | 
116 | 	old_hour = local->tm_hour;
117 | 	old_value = amount;
118 | }
119 | 
120 | void saveTemperature(float temperature)
121 | {
122 | 	static signed int t_old_min = -1;
123 | 	static float old_value = -FLT_MAX;
124 | 
125 | 	t = time(NULL);
126 | 	local = localtime(&t);
127 | 
128 | 	/* Store if value has changed or not from same minute */
129 | 	if (t_old_min != local->tm_min || old_value != temperature) {
130 | 
131 | 		/* Check for invalid values */
132 | 		float difference = old_value - temperature;
133 | 		if ((difference < -TEMP_DIFF || difference > TEMP_DIFF)
134 | 		    && old_value != -FLT_MAX) {
135 | 			printf(LANG_DB_TEMP_DIFF, old_value, temperature);
136 | 			return;
137 | 		}
138 | 
139 | 		char query[1024] = " ";
140 | 		sprintf(query,
141 | 			"INSERT INTO temperature VALUES (datetime('now', 'localtime'), %.1f);",
142 | 			temperature);
143 | 		error = sqlite3_exec(conn, query, 0, 0, 0);
144 | 
145 | 		if (error != SQLITE_OK) {
146 | 			fprintf(stderr, LANG_DB_TEMP_QUERY, error);
147 | 			exit(6);
148 | 		}
149 | 	}
150 | 
151 | 	t_old_min = local->tm_min;
152 | 	old_value = temperature;
153 | }
154 | 
155 | void saveHumidity(unsigned int humidity)
156 | {
157 | 	static signed int h_old_min = -1;
158 | 	static float old_value = -FLT_MAX;
159 | 
160 | 	t = time(NULL);
161 | 	local = localtime(&t);
162 | 
163 | 	/* Store if value has changed or not from same minute */
164 | 	if (h_old_min != local->tm_min || old_value != humidity) {
165 | 
166 | 		/* Check for invalid values */
167 | 		if (humidity <= 0 || humidity > 100) {
168 | 			fprintf(stderr, LANG_DB_HUMID_DIFF, humidity);
169 | 			return;
170 | 		}
171 | 
172 | 		char query[1024] = " ";
173 | 		sprintf(query,
174 | 			"INSERT INTO humidity VALUES (datetime('now', 'localtime'), %i);",
175 | 			humidity);
176 | 		error = sqlite3_exec(conn, query, 0, 0, 0);
177 | 
178 | 		if (error != SQLITE_OK) {
179 | 			fprintf(stderr, LANG_DB_PLUVIOMETER_QUERY, error);
180 | 			exit(7);
181 | 		}
182 | 	}
183 | 
184 | 	h_old_min = local->tm_min;
185 | 	old_value = humidity;
186 | }
187 | 
188 | void saveWind(float speed, float gust, unsigned int dir)
189 | {
190 | 	static time_t temp_time = 0;
191 | 	static time_t old_time = 0;
192 | 	static signed int counter = 0;
193 | 	static float windSpeed[WIND_SAMPLES] = { -1.0 };
194 | 	static float windGust[WIND_SAMPLES] = { -1.0 };
195 | 	static int windDir[WIND_SAMPLES] = { -1 };
196 | 	static int rowid = 0;
197 | 	static int saved = 0;
198 | 
199 | 	float x, y, rad;
200 | 	unsigned int i;
201 | 
202 | 	time(&t);
203 | 
204 | 	/* Check a new reading (aprox. every 30s). Discard incomplete data */
205 | 	if (difftime(t, temp_time) > 20.0) {
206 | 		if (windSpeed[counter] > -1.0 && windGust[counter] > -1.0)
207 | 			counter++;
208 | 		i = counter % WIND_SAMPLES;
209 | 		windSpeed[i] = -1.0;
210 | 		windGust[i] = -1.0;
211 | 		windDir[i] = -1;
212 | 		temp_time = time(NULL);
213 | 		saved = 0;
214 | 	}
215 | 
216 | 	/* Store current wind data */
217 | 	i = counter % WIND_SAMPLES;
218 | 	if (speed > -1.0) {
219 | 		windSpeed[i] = speed;
220 | 	} else if (gust > -1.0) {
221 | 		windGust[i] = gust;
222 | 		windDir[i] = dir;
223 | 	}
224 | 
225 | 	/* Return if only one value available or already saved */
226 | 	if (windSpeed[i] < 0.0 || windGust[i] < 0.0 || saved == 1)
227 | 		return;
228 | 
229 | 	/* Calculate averages 
230 | 	 * Wind dir from http://www.control.com/thread/1026210133
231 | 	 * By M.A.Saghafi on 11 October, 2010 - 8:26 am and M Barnes on 18 May, 2011 - 6:48 am */
232 | 	++counter;
233 | 	speed = 0.0;
234 | 	for (i = 0; i < counter; i++) {
235 | #if DEBUG > 2
236 | 		fprintf(stderr,
237 | 			"[AVG] %i: Speed: %.1f\tGust: %.1f\tDir: %i\tc: %i\n",
238 | 			i, windSpeed[i], windGust[i], windDir[i], counter);
239 | #endif
240 | 		dir = i % WIND_SAMPLES;
241 | 		rad = M_PI / 180 * windDir[dir];
242 | 		x += -windSpeed[dir] * sin(rad);
243 | 		y += -windSpeed[dir] * cos(rad);
244 | 		speed += windSpeed[dir];
245 | 		if (windGust[dir] > gust)
246 | 			gust = windGust[dir];
247 | 	}
248 | 
249 | 	speed = speed / counter;
250 | 	x = x / counter;
251 | 	y = y / counter;
252 | 
253 | 	if (x == 0)
254 | 		dir = 0;
255 | 	else if (x > 0)
256 | 		dir = 270 - 180 / M_PI * atan(y / x);
257 | 	else
258 | 		dir = 90 - 180 / M_PI * atan(y / x);
259 | 	dir = dir % 360;
260 | 
261 | 	/* Update row if time < WIND_SAVE_INTERVALL */
262 | 	char query[128] = " ";
263 | 	if (difftime(t, old_time) < WIND_SAVE_INTERVALL && rowid > 0) {
264 | 		sprintf(query,
265 | 			"UPDATE wind SET created=datetime('now','localtime'), speed=%.1f, gust=%.1f, direction=%i WHERE rowid=%i;",
266 | 			speed, gust, dir, rowid);
267 | 		error = sqlite3_exec(conn, query, 0, 0, 0);
268 | 		if (error != SQLITE_OK)
269 | 			fprintf(stderr, LANG_DB_WIND_QUERY, error, query);
270 | 
271 | 		--counter;
272 | 		/* Insert a new row */
273 | 	} else {
274 | 		sprintf(query,
275 | 			"INSERT INTO wind VALUES (datetime('now', 'localtime'), %.1f, %.1f, %i);",
276 | 			speed, gust, dir);
277 | 		error = sqlite3_exec(conn, query, 0, 0, 0);
278 | 		if (error != SQLITE_OK)
279 | 			fprintf(stderr, LANG_DB_WIND_QUERY, error, query);
280 | 
281 | 		rowid = (int)sqlite3_last_insert_rowid(conn);
282 | 		counter = 0;
283 | 		old_time = time(NULL);
284 | 		windGust[0] = -1.0;
285 | 		windDir[0] = -1.0;
286 | 	}
287 | 	saved = 1;
288 | #if DEBUG > 1
289 | 	fprintf(stderr, "Query: %s\n", query);
290 | #endif
291 | }
292 | 


--------------------------------------------------------------------------------
/reader/auriol-reader.c:
--------------------------------------------------------------------------------
  1 | #define LANGUAGE_ENGLISH
  2 | 
  3 | #include 
  4 | #include 
  5 | #include 
  6 | #include 
  7 | #include 
  8 | #include 
  9 | #include "db.h"
 10 | 
 11 | #define DEBUG 0
 12 | #define RECIEVE_PIN 2
 13 | 
 14 | 			      /* Below values are experimental and depend on how fast particular Raspberry Pi is */
 15 |                   /* Below values define how many polled "1" from receiver hardware mean given logical signal */
 16 | 			      /* Values used in this code work on Pi Model B Revision 2.0 (000e) without running other heavy CPU processes */
 17 | #define SYNCHRO_LENGTH 168	/*    168;  9 ms */
 18 | #define SEPARATOR_LENGTH 8	/*   8..9;  1 ms */
 19 | #define ZERO_LENGTH 38		/*     38;  2 ms */
 20 | #define ONE_LENGTH 76		/* 76..78;  4 ms */
 21 | #define LENGTHS_MARGIN 7	/*   5..7; .5 ms */
 22 | 
 23 | #ifdef LANGUAGE_ENGLISH
 24 | static const char LANG_PROGRAM_TITLE[] =
 25 |     "433 MHz Wireless Weather Station Decoder running on Raspberry Pi.\n";
 26 | static const char LANG_BATTERY_OK[] = "        Battery: OK\n";
 27 | static const char LANG_BATTERY_REPLACE[] =
 28 |     "        Battery: Replace (<2.6V)!\n";
 29 | static const char LANG_TRANS_FILE_OPEN_ERR[] =
 30 |     "ERROR: Could not open transmission data file!";
 31 | static const char LANG_TRANS_FILE_END[] = "End of transmission data.";
 32 | static const char LANG_INFO_PLUVIOMETER[] = "Rain: %.2f mm";
 33 | static const char LANG_INFO_WIND_AVG[] = "Wind Speed: %.1f m/s";
 34 | static const char LANG_INFO_WIND_DIR_GUST[] =
 35 |     "Wind Direction: %i deg        Wind Gust: %.1f m/s";
 36 | static const char LANG_INFO_TEMP_HUMIDITY[] =
 37 |     "Temperature: %.1f C        Humidity: %i %%";
 38 | static const char LANG_INFO_CRC_DIFFER[] =
 39 |     "ReceivedChecksum: %02x CalculatedChecksum: %02x Equal: %d\n";
 40 | static const char LANG_WARNING_CRC[] =
 41 |     "WARNING: Checksum failed. Data will NOT be saved!\n";
 42 | static const char LANG_DATE_TIME[] = "[%i-%02i-%02i %02i:%02i:%02i] ";
 43 | 
 44 | #else
 45 | static const char LANG_PROGRAM_TITLE[] =
 46 |     "Dekoder czujnikow bezprzewodowych 433 MHz na Raspberry Pi uruchomiony.\n";
 47 | static const char LANG_BATTERY_OK[] = "        Bateria: OK\n";
 48 | static const char LANG_BATTERY_REPLACE[] =
 49 |     "        Bateria: do wymiany (napiecie < 2.6V)\n";
 50 | static const char LANG_TRANS_FILE_OPEN_ERR[] =
 51 |     "Could not open file with transmission data. Terminating. Good-bye!";
 52 | static const char LANG_TRANS_FILE_END[] =
 53 |     "Reached end of file with transmission data. Terminating. Good-bye!";
 54 | static const char LANG_INFO_PLUVIOMETER[] = "Deszczomierz: %.2f mm";
 55 | static const char LANG_INFO_WIND_AVG[] = "Srednia predkosc wiatru: %.2f m/s";
 56 | static const char LANG_INFO_WIND_DIR_GUST[] =
 57 |     "Kierunek wiatru: %i stopni        Poryw: %.2f m/s";
 58 | static const char LANG_INFO_TEMP_HUMIDITY[] =
 59 |     "Temperatura: %.2f C        Wilgotnosc: %i %%";
 60 | static const char LANG_INFO_CRC_DIFFER[] =
 61 |     "readedChecksum=%02x computedChecksum=%02x equal=%d\n";
 62 | static const char LANG_WARNING_CRC[] =
 63 |     "WARNING! Checksum not confirmed. Data will NOT be saved in database\n";
 64 | static const char LANG_DATE_TIME[] = "[%i-%02i-%02i %02i:%02i:%02i] ";
 65 | #endif
 66 | 
 67 | unsigned char readLevel();
 68 | int findEncodedBitLength(unsigned char level);
 69 | void resetRecording();
 70 | void printArray();
 71 | void decodeBitLength(int length);
 72 | void decodeArray();
 73 | void decodePluviometer();
 74 | void decodeWindData();
 75 | bool combinedSensorChecksumConfirmed();
 76 | void printTime();
 77 | 
 78 | FILE *pFile = NULL;
 79 | int globalLevelsCounter = 0;
 80 | int levelsCounter = 0;
 81 | int levelOneCounter = 0;
 82 | unsigned char previousEncodedBitInRange = 0;
 83 | unsigned char recording = 0;
 84 | unsigned char encodedBits[36] =
 85 |     { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 86 | 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
 87 | };
 88 | 
 89 | unsigned char encodedBitsIndex = 0;
 90 | 
 91 | int main(int argc, char *argv[])
 92 | {
 93 | 	initializeDatabase();
 94 | 
 95 | 	wiringPiSetup();
 96 | 
 97 | 	printTime();
 98 | 	printf(LANG_PROGRAM_TITLE);
 99 | 
100 | 	while (1) {
101 | 		int level = digitalRead(RECIEVE_PIN);
102 | 
103 | 		int bitLength = findEncodedBitLength(level);
104 | 		decodeBitLength(bitLength);
105 | 
106 | 		delayMicroseconds(50);
107 | 
108 | 		globalLevelsCounter++;
109 | 	}
110 | 	return 0;
111 | }
112 | 
113 | /* Read GPIO level */
114 | unsigned char readLevel()
115 | {
116 | 	int c = fgetc(pFile);
117 | 	if (c != EOF) {
118 | 		return c - '0';
119 | 	} else {
120 | 		puts(LANG_TRANS_FILE_END);
121 | 		exit(2);
122 | 	}
123 | }
124 | 
125 | /* Analyze transmission bit after bit */
126 | int findEncodedBitLength(unsigned char level)
127 | {
128 | 	levelsCounter++;
129 | 
130 | 	/* Out of range */
131 | 	if (levelsCounter >
132 | 	    SYNCHRO_LENGTH + LENGTHS_MARGIN + SEPARATOR_LENGTH +
133 | 	    LENGTHS_MARGIN) {
134 | 		levelsCounter = 1;
135 | 		resetRecording();
136 | 		previousEncodedBitInRange = 1;
137 | 	}
138 | 
139 | 	int encodedBitLength = -1;
140 | 	if (level == 0) {
141 | 		if (levelOneCounter > SEPARATOR_LENGTH - LENGTHS_MARGIN
142 | 		    && levelOneCounter < SEPARATOR_LENGTH + LENGTHS_MARGIN) {
143 | 			if (previousEncodedBitInRange) {
144 | 				encodedBitLength =
145 | 				    levelsCounter - levelOneCounter;
146 | 			}
147 | 			levelsCounter = 0;
148 | 			previousEncodedBitInRange = 1;
149 | 		}
150 | 		levelOneCounter = 0;
151 | 	} else {
152 | 		levelOneCounter++;
153 | 	}
154 | 	return encodedBitLength;
155 | }
156 | 
157 | void resetRecording()
158 | {
159 | 	recording = 0;
160 | 	memset(encodedBits, 2, sizeof(encodedBits[0]) * 36);
161 | 	encodedBitsIndex = 0;
162 | }
163 | 
164 | void decodeBitLength(int length)
165 | {
166 | 	/* Signal length too short */
167 | 	if (length < ZERO_LENGTH - LENGTHS_MARGIN) {
168 | 		return;
169 | 	}
170 | 
171 | 	/* Sync bit - Start of data package */
172 | 	if (length > SYNCHRO_LENGTH - LENGTHS_MARGIN * 2
173 | 	    && length < SYNCHRO_LENGTH + LENGTHS_MARGIN * 2 && !recording) {
174 | 		resetRecording();
175 | 		recording = 1;
176 | 
177 | 		/* One  */
178 | 	} else if (length > ONE_LENGTH - LENGTHS_MARGIN
179 | 		   && length < ONE_LENGTH + LENGTHS_MARGIN && recording) {
180 | 		encodedBits[encodedBitsIndex++] = 1;
181 | 
182 | 		/* Zero */
183 | 	} else if (length > ZERO_LENGTH - LENGTHS_MARGIN
184 | 		   && length < ZERO_LENGTH + LENGTHS_MARGIN && recording) {
185 | 		encodedBits[encodedBitsIndex++] = 0;
186 | 
187 | 		/* Sync bit - End of data package */
188 | 	} else if (length > SYNCHRO_LENGTH - LENGTHS_MARGIN * 2
189 | 		   && length < SYNCHRO_LENGTH + LENGTHS_MARGIN * 2
190 | 		   && recording) {
191 | 		decodeArray();
192 | 		resetRecording();
193 | 		recording = 1;
194 | 
195 | 		/* Signal length too long */
196 | 	} else if (recording) {
197 | 		resetRecording();
198 | 	}
199 | }
200 | 
201 | void printArray()
202 | {
203 | 	if (encodedBitsIndex == 0)
204 | 		return;
205 | #if DEBUG > 1
206 | 	int i;
207 | 	struct tm *local;
208 | 	time_t t = time(NULL);
209 | 	local = localtime(&t);
210 | 
211 | 	fprintf(stderr, LANG_DATE_TIME, (local->tm_year + 1900),
212 | 		(local->tm_mon) + 1, local->tm_mday, local->tm_hour,
213 | 		local->tm_min, local->tm_sec);
214 | 
215 | 	for (i = 0; i < 36; i++)
216 | 		fprintf(stderr, "%i", encodedBits[i]);
217 | 	fprintf(stderr, "\n");
218 | #endif
219 | }
220 | 
221 | void decodeArray()
222 | {
223 | 	if (encodedBitsIndex < 36) {
224 | 		return;
225 | 	}
226 | 	printArray();
227 | 	decodePluviometer();
228 | 	decodeWindData();
229 | }
230 | 
231 | void decodePluviometer()
232 | {
233 | 	if (encodedBits[9] && encodedBits[10] && !encodedBits[11]
234 | 	    && encodedBits[12] && encodedBits[13] && !encodedBits[14]
235 | 	    && !encodedBits[15]) {
236 | 		unsigned int rain = 0;
237 | 		int i;
238 | 		for (i = 16; i < 32; i++) {
239 | 			rain |= encodedBits[i] << (i - 16);
240 | 		}
241 | 
242 | 		printTime();
243 | 		float rainFinal = (float)rain / 4;
244 | 		printf(LANG_INFO_PLUVIOMETER, (float)rainFinal);
245 | 		savePluviometer(rainFinal);
246 | 
247 | 		if (encodedBits[8]) {
248 | 			printf(LANG_BATTERY_REPLACE);
249 | 		} else {
250 | 			printf(LANG_BATTERY_OK);
251 | 		}
252 | 	}
253 | }
254 | 
255 | void decodeWindData()
256 | {
257 | 	/* Average Wind Speed */
258 | 	if (encodedBits[9] && encodedBits[10] && encodedBits[12]
259 | 	    && !encodedBits[13] && !encodedBits[14] && !encodedBits[15]
260 | 	    && !encodedBits[16]
261 | 	    && !encodedBits[17] && !encodedBits[18] && !encodedBits[19]
262 | 	    && !encodedBits[20] && !encodedBits[21] && !encodedBits[22]
263 | 	    && !encodedBits[23]) {
264 | 		unsigned int windAverageSpeed = 0;
265 | 		int i;
266 | 		for (i = 24; i < 32; i++) {
267 | 			windAverageSpeed |= encodedBits[i] << (i - 24);
268 | 		}
269 | 
270 | 		printTime();
271 | 		printf(LANG_INFO_WIND_AVG, (float)windAverageSpeed / 5);
272 | 
273 | 		if (encodedBits[8]) {
274 | 			printf(LANG_BATTERY_REPLACE);
275 | 		} else {
276 | 			printf(LANG_BATTERY_OK);
277 | 		}
278 | 
279 | 		saveWind((float)windAverageSpeed / 5, -1.0, -1);
280 | 
281 | 		/* Wind gust & direction */
282 | 	} else if (encodedBits[9] && encodedBits[10] && encodedBits[12]
283 | 		   && encodedBits[13] && encodedBits[14]) {
284 | 		unsigned int direction = 0;
285 | 		unsigned int windGust = 0;
286 | 		int i;
287 | 		for (i = 15; i < 24; i++) {
288 | 			direction |= encodedBits[i] << (i - 15);
289 | 		}
290 | 		for (i = 24; i < 32; i++) {
291 | 			windGust |= encodedBits[i] << (i - 24);
292 | 		}
293 | 
294 | 		printTime();
295 | 		printf(LANG_INFO_WIND_DIR_GUST, direction, (float)windGust / 5);
296 | 
297 | 		if (encodedBits[8]) {
298 | 			printf(LANG_BATTERY_REPLACE);
299 | 		} else {
300 | 			printf(LANG_BATTERY_OK);
301 | 		}
302 | 
303 | 		saveWind(-1.0, (float)windGust / 5, direction);
304 | 
305 | 		/* Temperature & Humidity */
306 | 	} else if (!encodedBits[9] || !encodedBits[10]) {
307 | 		int temperature = 0;
308 | 		int i;
309 | 		for (i = 12; i < 23; i++) {
310 | 			temperature |= encodedBits[i] << (i - 12);
311 | 		}
312 | 		if (encodedBits[23]) {
313 | 			temperature = -2048 + temperature;
314 | 		}
315 | 		float temperatureFinal = (float)temperature / 10;
316 | 
317 | 		unsigned int humidityOnes = 0;
318 | 		for (i = 24; i < 28; i++) {
319 | 			humidityOnes |= encodedBits[i] << (i - 24);
320 | 		}
321 | 
322 | 		unsigned int humidityTens = 0;
323 | 		for (i = 28; i < 32; i++) {
324 | 			humidityTens |= encodedBits[i] << (i - 28);
325 | 		}
326 | 
327 | 		unsigned int humidity = humidityTens * 10 + humidityOnes;
328 | 
329 | 		printTime();
330 | 		printf(LANG_INFO_TEMP_HUMIDITY, temperatureFinal, humidity);
331 | 
332 | 		if (encodedBits[8]) {
333 | 			printf(LANG_BATTERY_REPLACE);
334 | 		} else {
335 | 			printf(LANG_BATTERY_OK);
336 | 		}
337 | 
338 | 		if (combinedSensorChecksumConfirmed()) {
339 | 			saveTemperature(temperatureFinal);
340 | 			saveHumidity(humidity);
341 | 		} else {
342 | 			fprintf(stderr, LANG_WARNING_CRC);
343 | 		}
344 | 	}
345 | }
346 | 
347 | bool combinedSensorChecksumConfirmed()
348 | {
349 | 	unsigned char computedChecksum = 0x0F;
350 | 	int i = 0, j = 0;
351 | 	for (i = 0; i < 32; i += 4) {
352 | 		unsigned char nibble = 0;
353 | 		for (j = 0; j < 4; j++) {
354 | 			nibble |= encodedBits[i + j] << (j);
355 | 		}
356 | 		computedChecksum -= nibble;
357 | 	}
358 | 	computedChecksum &= 0x0F;
359 | 
360 | 	unsigned int readedChecksum = 0x00;
361 | 	for (i = 32; i < 36; i++) {
362 | 		readedChecksum |= encodedBits[i] << (i - 32);
363 | 	}
364 | 
365 | 	bool checksumsAreEqual = (readedChecksum == computedChecksum);
366 | 
367 | 	if (!checksumsAreEqual) {
368 | 		printTime();
369 | 		fprintf(stderr, LANG_INFO_CRC_DIFFER, readedChecksum,
370 | 			computedChecksum, checksumsAreEqual);
371 | 	}
372 | 
373 | 	return checksumsAreEqual;
374 | }
375 | 
376 | void printTime()
377 | {
378 | 	struct tm *local;
379 | 	time_t t;
380 | 
381 | 	t = time(NULL);
382 | 	local = localtime(&t);
383 | 	printf(LANG_DATE_TIME, (local->tm_year + 1900), (local->tm_mon) + 1,
384 | 	       local->tm_mday, local->tm_hour, local->tm_min, local->tm_sec);
385 | }
386 | 


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
  1 |                     GNU GENERAL PUBLIC LICENSE
  2 |                        Version 2, June 1991
  3 | 
  4 |  Copyright (C) 1989, 1991 Free Software Foundation, Inc., 
  5 |  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  6 |  Everyone is permitted to copy and distribute verbatim copies
  7 |  of this license document, but changing it is not allowed.
  8 | 
  9 |                             Preamble
 10 | 
 11 |   The licenses for most software are designed to take away your
 12 | freedom to share and change it.  By contrast, the GNU General Public
 13 | License is intended to guarantee your freedom to share and change free
 14 | software--to make sure the software is free for all its users.  This
 15 | General Public License applies to most of the Free Software
 16 | Foundation's software and to any other program whose authors commit to
 17 | using it.  (Some other Free Software Foundation software is covered by
 18 | the GNU Lesser General Public License instead.)  You can apply it to
 19 | your programs, too.
 20 | 
 21 |   When we speak of free software, we are referring to freedom, not
 22 | price.  Our General Public Licenses are designed to make sure that you
 23 | have the freedom to distribute copies of free software (and charge for
 24 | this service if you wish), that you receive source code or can get it
 25 | if you want it, that you can change the software or use pieces of it
 26 | in new free programs; and that you know you can do these things.
 27 | 
 28 |   To protect your rights, we need to make restrictions that forbid
 29 | anyone to deny you these rights or to ask you to surrender the rights.
 30 | These restrictions translate to certain responsibilities for you if you
 31 | distribute copies of the software, or if you modify it.
 32 | 
 33 |   For example, if you distribute copies of such a program, whether
 34 | gratis or for a fee, you must give the recipients all the rights that
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 36 | source code.  And you must show them these terms so they know their
 37 | rights.
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 40 | (2) offer you this license which gives you legal permission to copy,
 41 | distribute and/or modify the software.
 42 | 
 43 |   Also, for each author's protection and ours, we want to make certain
 44 | that everyone understands that there is no warranty for this free
 45 | software.  If the software is modified by someone else and passed on, we
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159 | control compilation and installation of the executable.  However, as a
160 | special exception, the source code distributed need not include
161 | anything that is normally distributed (in either source or binary
162 | form) with the major components (compiler, kernel, and so on) of the
163 | operating system on which the executable runs, unless that component
164 | itself accompanies the executable.
165 | 
166 | If distribution of executable or object code is made by offering
167 | access to copy from a designated place, then offering equivalent
168 | access to copy the source code from the same place counts as
169 | distribution of the source code, even though third parties are not
170 | compelled to copy the source along with the object code.
171 | 
172 |   4. You may not copy, modify, sublicense, or distribute the Program
173 | except as expressly provided under this License.  Any attempt
174 | otherwise to copy, modify, sublicense or distribute the Program is
175 | void, and will automatically terminate your rights under this License.
176 | However, parties who have received copies, or rights, from you under
177 | this License will not have their licenses terminated so long as such
178 | parties remain in full compliance.
179 | 
180 |   5. You are not required to accept this License, since you have not
181 | signed it.  However, nothing else grants you permission to modify or
182 | distribute the Program or its derivative works.  These actions are
183 | prohibited by law if you do not accept this License.  Therefore, by
184 | modifying or distributing the Program (or any work based on the
185 | Program), you indicate your acceptance of this License to do so, and
186 | all its terms and conditions for copying, distributing or modifying
187 | the Program or works based on it.
188 | 
189 |   6. Each time you redistribute the Program (or any work based on the
190 | Program), the recipient automatically receives a license from the
191 | original licensor to copy, distribute or modify the Program subject to
192 | these terms and conditions.  You may not impose any further
193 | restrictions on the recipients' exercise of the rights granted herein.
194 | You are not responsible for enforcing compliance by third parties to
195 | this License.
196 | 
197 |   7. If, as a consequence of a court judgment or allegation of patent
198 | infringement or for any other reason (not limited to patent issues),
199 | conditions are imposed on you (whether by court order, agreement or
200 | otherwise) that contradict the conditions of this License, they do not
201 | excuse you from the conditions of this License.  If you cannot
202 | distribute so as to satisfy simultaneously your obligations under this
203 | License and any other pertinent obligations, then as a consequence you
204 | may not distribute the Program at all.  For example, if a patent
205 | license would not permit royalty-free redistribution of the Program by
206 | all those who receive copies directly or indirectly through you, then
207 | the only way you could satisfy both it and this License would be to
208 | refrain entirely from distribution of the Program.
209 | 
210 | If any portion of this section is held invalid or unenforceable under
211 | any particular circumstance, the balance of the section is intended to
212 | apply and the section as a whole is intended to apply in other
213 | circumstances.
214 | 
215 | It is not the purpose of this section to induce you to infringe any
216 | patents or other property right claims or to contest validity of any
217 | such claims; this section has the sole purpose of protecting the
218 | integrity of the free software distribution system, which is
219 | implemented by public license practices.  Many people have made
220 | generous contributions to the wide range of software distributed
221 | through that system in reliance on consistent application of that
222 | system; it is up to the author/donor to decide if he or she is willing
223 | to distribute software through any other system and a licensee cannot
224 | impose that choice.
225 | 
226 | This section is intended to make thoroughly clear what is believed to
227 | be a consequence of the rest of this License.
228 | 
229 |   8. If the distribution and/or use of the Program is restricted in
230 | certain countries either by patents or by copyrighted interfaces, the
231 | original copyright holder who places the Program under this License
232 | may add an explicit geographical distribution limitation excluding
233 | those countries, so that distribution is permitted only in or among
234 | countries not thus excluded.  In such case, this License incorporates
235 | the limitation as if written in the body of this License.
236 | 
237 |   9. The Free Software Foundation may publish revised and/or new versions
238 | of the General Public License from time to time.  Such new versions will
239 | be similar in spirit to the present version, but may differ in detail to
240 | address new problems or concerns.
241 | 
242 | Each version is given a distinguishing version number.  If the Program
243 | specifies a version number of this License which applies to it and "any
244 | later version", you have the option of following the terms and conditions
245 | either of that version or of any later version published by the Free
246 | Software Foundation.  If the Program does not specify a version number of
247 | this License, you may choose any version ever published by the Free Software
248 | Foundation.
249 | 
250 |   10. If you wish to incorporate parts of the Program into other free
251 | programs whose distribution conditions are different, write to the author
252 | to ask for permission.  For software which is copyrighted by the Free
253 | Software Foundation, write to the Free Software Foundation; we sometimes
254 | make exceptions for this.  Our decision will be guided by the two goals
255 | of preserving the free status of all derivatives of our free software and
256 | of promoting the sharing and reuse of software generally.
257 | 
258 |                             NO WARRANTY
259 | 
260 |   11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
261 | FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
262 | OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
263 | PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
264 | OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
265 | MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
266 | TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
267 | PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
268 | REPAIR OR CORRECTION.
269 | 
270 |   12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
271 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
272 | REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
273 | INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
274 | OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
275 | TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
276 | YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
277 | PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
278 | POSSIBILITY OF SUCH DAMAGES.
279 | 
280 |                      END OF TERMS AND CONDITIONS
281 | 
282 |             How to Apply These Terms to Your New Programs
283 | 
284 |   If you develop a new program, and you want it to be of the greatest
285 | possible use to the public, the best way to achieve this is to make it
286 | free software which everyone can redistribute and change under these terms.
287 | 
288 |   To do so, attach the following notices to the program.  It is safest
289 | to attach them to the start of each source file to most effectively
290 | convey the exclusion of warranty; and each file should have at least
291 | the "copyright" line and a pointer to where the full notice is found.
292 | 
293 |     {description}
294 |     Copyright (C) {year}  {fullname}
295 | 
296 |     This program is free software; you can redistribute it and/or modify
297 |     it under the terms of the GNU General Public License as published by
298 |     the Free Software Foundation; either version 2 of the License, or
299 |     (at your option) any later version.
300 | 
301 |     This program is distributed in the hope that it will be useful,
302 |     but WITHOUT ANY WARRANTY; without even the implied warranty of
303 |     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
304 |     GNU General Public License for more details.
305 | 
306 |     You should have received a copy of the GNU General Public License along
307 |     with this program; if not, write to the Free Software Foundation, Inc.,
308 |     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
309 | 
310 | Also add information on how to contact you by electronic and paper mail.
311 | 
312 | If the program is interactive, make it output a short notice like this
313 | when it starts in an interactive mode:
314 | 
315 |     Gnomovision version 69, Copyright (C) year name of author
316 |     Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
317 |     This is free software, and you are welcome to redistribute it
318 |     under certain conditions; type `show c' for details.
319 | 
320 | The hypothetical commands `show w' and `show c' should show the appropriate
321 | parts of the General Public License.  Of course, the commands you use may
322 | be called something other than `show w' and `show c'; they could even be
323 | mouse-clicks or menu items--whatever suits your program.
324 | 
325 | You should also get your employer (if you work as a programmer) or your
326 | school, if any, to sign a "copyright disclaimer" for the program, if
327 | necessary.  Here is a sample; alter the names:
328 | 
329 |   Yoyodyne, Inc., hereby disclaims all copyright interest in the program
330 |   `Gnomovision' (which makes passes at compilers) written by James Hacker.
331 | 
332 |   {signature of Ty Coon}, 1 April 1989
333 |   Ty Coon, President of Vice
334 | 
335 | This General Public License does not permit incorporating your program into
336 | proprietary programs.  If your program is a subroutine library, you may
337 | consider it more useful to permit linking proprietary applications with the
338 | library.  If this is what you want to do, use the GNU Lesser General
339 | Public License instead of this License.
340 | 
341 | 


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