20180911

增加 dth11 温度湿度传感器
目前工作的有DS18B20温度传感、DTH11温度湿度传感器
未测试的有info_sound、info_ultrasound、info_infrared二进制程序

	修改：     gpio/Makefile
	新文件：   gpio/conf/info.conf
	新文件：   gpio/dth11.c
	删除：     gpio/info_infrared
	修改：     gpio/info_infrared.c
	删除：     gpio/info_light
	修改：     gpio/info_light.c
	删除：     gpio/info_pin
	修改：     gpio/info_pin.c
	删除：     gpio/info_sound
	修改：     gpio/info_sound.c
	删除：     gpio/info_ultrasound
	修改：     gpio/info_ultrasound.c
	修改：     gpio/log/light.pid
	修改：     gpio/log/wind.pid
	新文件：   gpio/log/wind_daemon.pid
	删除：     gpio/wind
	修改：     gpio/wind.c

gpio/Makefile

@@ -1,21 +1,60 @@
 CC = gcc
-libs=info_infrared.o info_light.o info_pin.o info_sound.o info_ultrasound.o
+RM = rm
+libs = info_infrared.o info_light.o info_pin.o info_sound.o info_ultrasound.o wind.o dth11.o
+CFLAGS = -g -Wall -Werror
+LIB = -lwiringPi
 
-all: infrared light pin sound ultrasound wind_
+all: infrared light pin sound ultrasound wind dth11
+
+infrared: infrared.o
+	$(CC) $(CFLAGS) info_infrared.o -o info_infrared $(LIB)
+	$(RM) info_infrared.o
+infrared.o:
+	$(CC) $(CFLAGS) -c info_infrared.c $(LIB)
+
+	
+light: light.o
+	$(CC) $(CFLAGS) info_light.o -o info_light $(LIB)
+	$(RM) info_light.o
+light.o:
+	$(CC) $(CFLAGS) -c info_light.c $(LIB)
+
+	
+pin: pin.o
+	$(CC) $(CFLAGS) info_pin.o -o info_pin $(LIB)
+	$(RM) info_pin.o
+pin.o:
+	$(CC) $(CFLAGS) -c info_pin.c $(LIB)
+
+	
+sound: sound.o
+	$(CC) $(CFLAGS) info_sound.o -o info_sound $(LIB)
+	$(RM) info_sound.o
+sound.o:
+	$(CC) $(CFLAGS) -c info_sound.c $(LIB)
+
+	
+ultrasound: ultrasound.o
+	$(CC) $(CFLAGS) info_ultrasound.o -o info_ultrasound $(LIB)
+	$(RM) info_ultrasound.o
+ultrasound.o:
+	$(CC) $(CFLAGS) -c info_ultrasound.c $(LIB)
+
+
+wind: wind.o
+	$(CC) $(CFLAGS) wind.o -o wind
+	$(RM) wind.o
+wind.o:
+	$(CC) $(CFLAGS) -c wind.c
+
+
+dth11: dth11.o
+	$(CC) $(CFLAGS) dth11.o -o dth11 $(LIB)
+	$(RM) dth11.o
+dth11.o:
+	$(CC) $(CFLAGS) -c dth11.c $(LIB)
 
-infrared: info_infrared
-	$(CC) info_infrared.c -o info_infrared -lwiringPi
-light: info_light
-	$(CC) info_light.c -o info_light -lwiringPi
-pin: info_pin
-	$(CC) info_pin.c -o info_pin -lwiringPi
-sound: info_sound
-	$(CC) info_sound.c -o info_sound -lwiringPi
-ultrasound: info_ultrasound
-	$(CC) info_ultrasound.c -o info_ultrasound -lwiringPi
-wind_: wind
-	${CC} wind.c -o wind
 
 .PHONY : clean
 clean :
-	rm -f $(libs) info_infrared info_light info_sound info_ultrasound
+	rm -f $(libs) info_infrared info_light info_sound info_ultrasound wind dth11

gpio/conf/info.conf

@@ -0,0 +1,28 @@
+#判断手机是否在线
+phoneip="192.168.99.60";	#IP
+
+#人体红外线传感器
+wiringpi_infrared="6";		#脚位
+
+#声音传感器
+wiringpi_sound="25";		#脚位
+
+#距离传感器
+l="60";
+s="150";					
+wiringpi_tring="8";			#脚位
+wiringpi_echo="9";			#脚位
+
+
+#灯
+high="1700";				#起始时间
+low="2300";					#关闭时间
+s_low="1900"				#周日关闭时间
+wiringpi_lightpin="4";		#脚位
+
+#风扇、温度传感器
+wiringpi_wind="1";			#脚位
+device="28-031682c7baff"	#设备
+l_temperature="27";			#不高于这个摄氏温度
+step_wait="300"				#开启时间
+step_stop="180"				#关闭时间

gpio/dth11.c

@@ -0,0 +1,131 @@
+/* DTH11 温度湿度传感器
+ *
+ *
+ */
+
+
+#include <wiringPi.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <unistd.h>
+#define MAX_TIME 85
+#define MAX_TRIES 100
+
+int dht11_val[5]={0,0,0,0,0};
+
+int dht11_read_val(int *h, int *t, int pin) {
+    uint8_t lststate=HIGH;
+    uint8_t counter=0;
+    uint8_t j=0,i;
+    
+    for (i=0;i<5;i++) {
+         dht11_val[i]=0;
+    }
+
+    pinMode(pin, OUTPUT);
+    digitalWrite(pin, LOW);
+    delay(18);
+    digitalWrite(pin, HIGH);
+    delayMicroseconds(40);
+    pinMode(pin, INPUT);
+
+    for (i=0;i<MAX_TIME;i++) {
+        counter=0;
+        while (digitalRead(pin)==lststate){
+            counter++;
+            delayMicroseconds(1);
+            if (counter==255)
+                break;
+        }
+        lststate=digitalRead(pin);
+        if (counter==255)
+             break;
+        // top 3 transitions are ignored
+        if ((i>=4) && (i%2==0)) {
+            dht11_val[j/8]<<=1;
+            if(counter>16)
+                dht11_val[j/8]|=1;
+            j++;
+        }
+    }
+
+    // verify cheksum and print the verified data
+    if ((j>=40) && (dht11_val[4]==((dht11_val[0]+dht11_val[1]+dht11_val[2]+dht11_val[3])& 0xFF))) {
+        // Only return the integer part of humidity and temperature. The sensor
+        // is not accurate enough for decimals anyway 
+        *h = dht11_val[0];
+        *t = dht11_val[2];
+        return 0;
+    }
+    else {
+        // invalid data
+        return 1;
+    }
+}
+
+int _main(int n, char *argv[])
+{
+    int j = 0;
+    int i;
+    char parameter[10];
+    strcpy(parameter, argv[n]);
+    int len = strlen(parameter);
+
+    for(i=0; i<len; i++)
+    {
+        if(parameter[i]<=57 && parameter[i]>=48)  //0~9的ASCII码是48~57
+        {j++;}
+    }
+    if(j==len){
+        return 1;
+    } else {
+        return 0;
+    }
+}
+
+int main(int argc, char *argv[]) {
+    if(argc != 2){
+        exit(1);
+    }
+	if(_main(1, argv) == 0) {
+		printf("参数错误, 参数1为PIN引脚值\n");
+		exit(1);
+	}
+
+	int pin = atol(argv[1]);
+	
+    int i;
+    int h; //humidity
+    int t; //temperature in degrees Celsius
+	
+	
+    wiringPiSetup();
+    
+    // throw away the first 3 measurements
+    for (i=0; i<3; i++) {
+        dht11_read_val(&h, &t, pin);
+        delay(3000);
+    }
+
+    // read the sensor until we get a pair of valid measurements
+    // but bail out if we tried too many times
+    int retval=1;
+    int tries=0;
+    while (retval != 0 && tries < MAX_TRIES)
+    {
+        retval = dht11_read_val(&h, &t, pin);
+        if (retval == 0) {
+            printf("%d %d\n", h, t);
+        } else {
+            delay(3000);
+    }
+        tries += 1;
+    }
+    if (tries < MAX_TRIES)
+        return 0;
+    else
+        return 1;
+
+}

gpio/info_infrared.c

@@ -20,4 +20,5 @@ int main(int argc, char *argv[])
     status = digitalRead(pin);
     printf("%d\n", status);
 	
+	return status;
 }

gpio/info_light.c

@@ -1,6 +1,13 @@
+/* 设置PIN脚为1或0电位(电压)
+ *
+ *
+ */
+
+
 #include <wiringPi.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 
 /*
 void pinMode (int pin, int mode) ;
@@ -11,11 +18,36 @@ int digitalRead (int pin) ;
 analogRead (int pin) ;
 analogWrite (int pin, int value) ;
 */
+
+int _main(char *argv[], int n)
+{
+    int j = 0;
+	int i;
+    char parameter[10];
+    strcpy(parameter, argv[n]);
+    int len = strlen(parameter);
+
+    for(i=0; i<len; i++)
+    {
+        if(parameter[i]<=57 && parameter[i]>=48)  //0~9的ASCII码是48~57
+        {j++;}
+    }
+    if(j==len){
+        return 1;
+    } else {
+        return 0;
+    }
+}
+
 int main(int argc, char *argv[])
 {
     if( argc != 3) {
         exit(0);
     }
+    if(_main(argv, 1) == 0) {
+        printf("参数错误, 参数1为PIN引脚值\n");
+        exit(1);
+	}
 
     int pin = atol(argv[1]);
     wiringPiSetup();
@@ -27,5 +59,6 @@ int main(int argc, char *argv[])
     if(atol(argv[2]) == 0) {
         digitalWrite(pin, LOW);
     }
-
+    return atol(argv[2]);
 }
+

gpio/info_pin.c

@@ -1,16 +1,13 @@
+/* 测试PIN脚是否1或0
+ *
+ *
+ */
+
+
 #include <wiringPi.h>
 #include <stdio.h>
 #include <stdlib.h>
 
-/*
-void pinMode (int pin, int mode) ;
-void pullUpDnControl (int pin, int pud) ;
-void digitalWrite (int pin, int value) ;
-void pwmWrite (int pin, int value) ;
-int digitalRead (int pin) ;
-analogRead (int pin) ;
-analogWrite (int pin, int value) ;
-*/
 int main(int argc, char *argv[])
 {
     if( argc != 2) {
@@ -21,4 +18,6 @@ int main(int argc, char *argv[])
     wiringPiSetup();
     pinMode(pin, OUTPUT);
     printf("%d\n", digitalRead(pin));
+	
+	return pin;
 }

gpio/info_sound.c

@@ -20,4 +20,5 @@ int main(int argc, char *argv[])
     status = digitalRead(pin);
     printf("%d\n", status);
     
+    return status;
 }

gpio/info_ultrasound.c

@@ -5,7 +5,6 @@
 
 int main(int argc, char * argv[])
 {
-    int i;
     if( argc != 3) {
         exit(0);
     }

gpio/log/light.pid

@@ -1 +1 @@
-8982
+30955

gpio/log/wind.pid

@@ -1 +1 @@
-7721
+1299

gpio/log/wind_daemon.pid

@@ -0,0 +1 @@
+1297

gpio/wind.c

@@ -1,4 +1,9 @@
-#include <stdio.h>
+/* DS18B20 温度传感器
+ *
+ *
+ */
+
+
 #include <stdio.h>
 #include <unistd.h>
 #include <fcntl.h>
@@ -11,6 +16,8 @@
 
 int main(int argc, char *argv[])
 {
+	int _main(char *optarg);
+
     int ch;
     opterr = 0;
     while((ch = getopt(argc, argv, "d:h?")) != -1)
@@ -25,6 +32,7 @@ int main(int argc, char *argv[])
 	default:
 	    ;
 	}
+	return 1;
 }
 
 int _main(char *optarg)
@@ -37,10 +45,10 @@ int _main(char *optarg)
     FILE *fp;
     char *temp;
     float value;
-    char *device;               // 设备
-	if(optarg == '\0')
-	    strcmp(device, optarg);
-	
+    //char *device;               // 设备
+	//if(optarg == '\0') {
+	//    strcmp(device, optarg);
+	//}
     system("sudo modprobe w1-gpio");
     system("sudo modprobe w1-therm");
     if((dirp = opendir(path)) == NULL) {
@@ -48,7 +56,7 @@ int _main(char *optarg)
     }
 
     while((direntp = readdir(dirp)) != NULL) {
-        if(strstr(direntp->d_name, device)) {
+        if(strstr(direntp->d_name, optarg)) {
             strcpy(rom, direntp->d_name);
         }
     }
@@ -71,6 +79,5 @@ int _main(char *optarg)
     printf("%.0f\n", value);
 
     fclose(fp);
-    return 0;
+    return value;
 }
-