添加传感器支持

README.md

@@ -10,8 +10,7 @@ raspberrypi zero w GPIO 实现的智能家居
 
 
 app配合socket服务器设置  
-![Image text](https://github.com/niuyuling/raspberrypi/blob/master/app/Screenshot_LightControl_20180906-120133.png)
+<img src="https://github.com/niuyuling/raspberrypi/blob/master/app/Screenshot_LightControl_20180906-120133.png" height="1000px" width="500px" >
-
 
 app主界面  
-![Image text](https://github.com/niuyuling/raspberrypi/blob/master/app/Screenshot_LightControl_20180906-120216.png)
+<img src="https://github.com/niuyuling/raspberrypi/blob/master/app/Screenshot_LightControl_20180906-120216.png" height="1000px" width="500px" >

gpio/Makefile

@@ -1,60 +1,37 @@
-CC = gcc
+CROSS_COMPILE ?= 
-RM = rm
+CC := $(CROSS_COMPILE)gcc
-libs = info_infrared.o info_light.o info_pin.o info_sound.o info_ultrasound.o wind.o dth11.o
+STRIP := $(CROSS_COMPILE)strip
-CFLAGS = -g -Wall -Werror
+CFLAGS += -g -O2 -Wall
-LIB = -lwiringPi
+LIBS = -lwiringPi
+BIN = infrared light pin sound ultrasound wind dht11 dht12 helement key_light
 
-all: infrared light pin sound ultrasound wind dth11
+all: $(BIN)
 
 infrared: infrared.o
-	$(CC) $(CFLAGS) info_infrared.o -o info_infrared $(LIB)
+	$(CC) $(CFLAGS) -o infrared $^ $(LIBS)
-	$(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)
+	$(CC) $(CFLAGS) -o light $^ $(LIBS)
-	$(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)
+	$(CC) $(CFLAGS) -o pin $^ $(LIBS)
-	$(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)
+	$(CC) $(CFLAGS) -o sound $^ $(LIBS)
-	$(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)
+	$(CC) $(CFLAGS) -o ultrasound $^ $(LIBS)
-	$(RM) info_ultrasound.o
-ultrasound.o:
-	$(CC) $(CFLAGS) -c info_ultrasound.c $(LIB)
-
-
 wind: wind.o
-	$(CC) $(CFLAGS) wind.o -o wind
+	$(CC) $(CFLAGS) -o wind $^ $(LIBS)
-	$(RM) wind.o
+dht11: dht11.o
-wind.o:
+	$(CC) $(CFLAGS) -o dht11 $^ $(LIBS)
-	$(CC) $(CFLAGS) -c wind.c
+dht12: dht12.o
+	$(CC) $(CFLAGS) -o dht12 $^ $(LIBS)
+helement: helement.o
+	$(CC) $(CFLAGS) -o helement $^ $(LIBS)
+key_light: key_light.o
+	$(CC) $(CFLAGS) -o key_light $^ $(LIBS)
 
+.c.o:
+	$(CC) $(CFLAGS) -c $< $(LIBS)
 
-dth11: dth11.o
+clean:
-	$(CC) $(CFLAGS) dth11.o -o dth11 $(LIB)
+	rm -rf *.o
-	$(RM) dth11.o
+	rm $(BIN)
-dth11.o:
-	$(CC) $(CFLAGS) -c dth11.c $(LIB)
 
-
-.PHONY : clean
-clean :
-	rm -f $(libs) info_infrared info_light info_sound info_ultrasound wind dth11

gpio/conf/info.conf

@@ -26,3 +26,6 @@ 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
+
+#霍尔元件
+helement_pin="1";

gpio/dht11.c

@@ -0,0 +1,128 @@
+/*
+ * 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 is_num(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) {
+        printf("Parameter error.\n");
+        exit(1);
+    }
+    if (is_num(1, argv) == 0) {
+        printf("Parameter error, parameter 1 is PIN pin value\n");
+        exit(1);
+    }
+
+    int pin = atol(argv[1]);
+
+    int h;                      //humidity
+    int t;                      //temperature in degrees Celsius
+
+    wiringPiSetup();
+
+    // 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);
+            printf("Humidity = %d Temperature = %d ℃  ( %f ℉ )\n", h, t, ((t*1.8)+32));
+        } else {
+            delay(3000);
+        }
+        tries += 1;
+    }
+    if (tries < MAX_TRIES)
+        return 0;
+    else
+        return 1;
+
+}

gpio/dht12.c

@@ -0,0 +1,123 @@
+/*
+ *	read temperature and humidity from DHT11 or DHT22 sensor
+ *
+ */
+
+#include <wiringPi.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+
+#define MAX_TIMINGS	85
+
+int data[5] = { 0, 0, 0, 0, 0 };
+
+int read_dht_data(float *h, float *c, float *f, int PIN)
+{
+    uint8_t laststate = HIGH;
+    uint8_t counter = 0;
+    uint8_t j = 0, i;
+
+    data[0] = data[1] = data[2] = data[3] = data[4] = 0;
+
+    /* pull pin down for 18 milliseconds */
+    pinMode(PIN, OUTPUT);
+    digitalWrite(PIN, LOW);
+    delay(18);
+
+    /* prepare to read the pin */
+    pinMode(PIN, INPUT);
+
+    /* detect change and read data */
+    for (i = 0; i < MAX_TIMINGS; i++) {
+        counter = 0;
+        while (digitalRead(PIN) == laststate) {
+            counter++;
+            delayMicroseconds(1);
+            if (counter == 255) {
+                break;
+            }
+        }
+        laststate = digitalRead(PIN);
+
+        if (counter == 255)
+            break;
+
+        /* ignore first 3 transitions */
+        if ((i >= 4) && (i % 2 == 0)) {
+            /* shove each bit into the storage bytes */
+            data[j / 8] <<= 1;
+            if (counter > 16)
+                data[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) &&
+        (data[4] == ((data[0] + data[1] + data[2] + data[3]) & 0xFF))) {
+        *h = (float)((data[0] << 8) + data[1]) / 10;
+        if (*h > 100) {
+            *h = data[0];        // for DHT11
+        }
+        *c = (float)(((data[2] & 0x7F) << 8) + data[3]) / 10;
+        if (*c > 125) {
+            *c = data[2];        // for DHT11
+        }
+        if (data[2] & 0x80) {
+            *c = -(*c);
+        }
+        *f = *c * 1.8f + 32;
+        return 0;
+    } else {
+        return 1;
+    }
+}
+
+int is_num(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) {
+        printf("Parameter error.\n");
+        exit(1);
+    }
+    if (is_num(1, argv) == 0) {
+        printf("Parameter error, parameter 1 is PIN pin value\n");
+        exit(1);
+    }
+    
+    if (wiringPiSetup() == -1)
+        exit(1);
+    int PIN = atol(argv[1]);
+    float h;
+    float c;
+    float f;
+    read_dht_data(&h, &c, &f, PIN);
+    printf("Humidity = %.1f Temperature = %.1f ℃  ( %.1f ℉ )\n", h, c, f);
+
+    return (0);
+}

gpio/dth11.c

@@ -1,131 +0,0 @@
-/* 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/helement.c

@@ -0,0 +1,59 @@
+/*
+ * 霍尔元件
+ *
+ */
+
+#include <wiringPi.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+
+int is_num(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) {
+        printf("Parameter error.\n");
+        exit(1);
+    }
+    if (is_num(1, argv) == 0) {
+        printf("Parameter error, parameter 1 is PIN pin value\n");
+        exit(1);
+    }
+    
+    int pin = atol(argv[1]);
+    int status = 0;
+
+    wiringPiSetup();
+
+    pinMode(pin, INPUT);
+
+    //pullUpDnControl(pin, PUD_DOWN);
+
+    status = digitalRead(pin);
+
+    printf("%d\n", status);
+
+    return status;
+}

gpio/info.sh

@@ -104,9 +104,12 @@ function INIT()
     stop_wind="${bindir}/info_light ${wiringpi_wind} 0";         #${wiringpi_wind} 低电压
     status_wind="$(${bindir}/info_pin ${wiringpi_wind})";        : PIN状态.
 
+    #霍尔元件
+    helement_pin="1";
+
 }
 
-#红外线守护进程.
+# 红外线守护进程.
 function infrared()
 {
     while true; do
@@ -115,7 +118,7 @@ function infrared()
     done
 }
 
-#灯主进程.
+# 灯主进程.
 function light()
 {
 INIT;
@@ -165,7 +168,7 @@ SLEEP 60;
 done
 }
 
-#声音传感器守护进程.
+# 声音传感器守护进程.
 function sound_daemon()
 {
     while :; do
@@ -174,13 +177,13 @@ function sound_daemon()
     done
 }
 
-#声音传感器主进程.
+# 声音传感器主进程.
 function sound()
 {
     :
 }
 
-#风扇守护进程.
+# 风扇守护进程.
 function wind_daemon()
 {
     while true; do
@@ -189,7 +192,7 @@ function wind_daemon()
     done
 }
 
-#风扇主进程.
+# 风扇主进程.
 function wind()
 {
 INIT
@@ -213,7 +216,29 @@ INIT
     done
 }
 
-#主进程
+# 霍尔元件守护进程
+function helement_daemon()
+{
+    while true; do
+        ${bindir}/helement ${helement_pin} > ${bindir}/data/helement.data;    : 霍尔传感器获取状态信息.
+        SLEEP 0.1;
+    done
+}
+
+# 霍尔元件主进程
+function helement()
+{
+    while true; do
+        DATE=$(date "+%y年%m月%d日%H时%M分%S秒");
+        status="$(cat ${bindir}/data/helement.data)";
+        if [ "$status" = "0" ]; then
+            /root/c/c 192.168.1.89 "echo ${DATE} 请注意,抽屉已经打开"
+        fi
+    done
+}
+
+
+# 主进程
 function main_()
 {
 INIT;
@@ -282,8 +307,10 @@ $0 Usage: $0 [-?|h] [-d] [-s] [-x] [light|temperature|wind]
     light       : light Modular.
     temperature : temperature Modular.
     wind        : Wind Modular.
+    helement    : Hall element.
 
 by aixiao@aixiao.me.
+
 "
 exit 0
         ;;
@@ -315,6 +342,12 @@ case $i in
         eval wind ${daemon}
         echo $! > ${bindir}/log/wind.pid 2> ${null}
         ;;
+    helement)
+        helement_daemon &
+        echo $! > ${bindir}/log/helement_daemon.pid 2> ${null};
+        eval helement ${daemon}
+        echo $! > ${bindir}/log/helement.pid 2> ${null}
+        ;;
     *)
         exit 1;
         ;;

gpio/info_infrared.c

@@ -1,24 +0,0 @@
-#include <wiringPi.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdbool.h>
-
-int main(int argc, char *argv[])
-{
-    if(argc != 2) {
-        exit(0);
-    }
-    int pin = atol(argv[1]);
-    int status = 0;
-
-    wiringPiSetup();
-
-    pinMode(pin, INPUT);
-
-    pullUpDnControl(pin, PUD_DOWN);
-
-    status = digitalRead(pin);
-    printf("%d\n", status);
-	
-	return status;
-}

gpio/info_light.c

@@ -1,64 +0,0 @@
-/* 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) ;
-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(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();
-
-    pinMode(pin, OUTPUT);
-    if(atol(argv[2]) == 1) {
-        digitalWrite(pin, HIGH);
-    }
-    if(atol(argv[2]) == 0) {
-        digitalWrite(pin, LOW);
-    }
-    return atol(argv[2]);
-}
-

gpio/info_pin.c

@@ -1,23 +0,0 @@
-/* 测试PIN脚是否1或0
- *
- *
- */
-
-
-#include <wiringPi.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-int main(int argc, char *argv[])
-{
-    if( argc != 2) {
-        exit(0);
-    }
-
-    int pin = atol(argv[1]);
-    wiringPiSetup();
-    pinMode(pin, OUTPUT);
-    printf("%d\n", digitalRead(pin));
-	
-	return pin;
-}

gpio/info_sound.c

@@ -1,24 +0,0 @@
-#include <wiringPi.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdbool.h>
-
-int main(int argc, char *argv[])
-{
-    if(argc != 2) {
-        exit(0);
-    }
-    int pin = atol(argv[1]);
-    int status = 0;
-
-    wiringPiSetup();
-
-    pinMode(pin, INPUT);
-
-    pullUpDnControl(pin, PUD_DOWN);
-
-    status = digitalRead(pin);
-    printf("%d\n", status);
-    
-    return status;
-}

gpio/info_ultrasound.c

@@ -1,41 +0,0 @@
-#include <wiringPi.h>
-#include <sys/time.h>
-#include <stdlib.h>
-#include <stdio.h>
-
-int main(int argc, char * argv[])
-{
-    if( argc != 3) {
-        exit(0);
-    }
-
-    int pin_tring = atol(argv[1]);
-    int pin_echo  = atol(argv[2]); 
-    struct timeval tv1;
-    struct timeval tv2;
-    long start_time, stop_time;
-    float distance;
-
-    if(wiringPiSetup() == -1) {
-        exit(0);
-        return 0;
-    }
-    digitalWrite(pin_tring, LOW);
-    digitalWrite(pin_tring, HIGH);
-    delayMicroseconds(10);
-    digitalWrite(pin_tring, LOW);
-
-    while(!(digitalRead(pin_echo) == 1));
-        gettimeofday(&tv1, NULL);
-    
-    while(!(digitalRead(pin_echo) == 0));
-        gettimeofday(&tv2, NULL);
-
-    start_time = tv1.tv_sec * 1000000 + tv1.tv_usec;
-    stop_time  = tv2.tv_sec * 1000000 + tv2.tv_usec;
-
-    distance = (float)(stop_time - start_time) / 1000000 * 34000 / 2;
-
-    printf("%0.0f\n", distance);
-    return distance; 
-}

gpio/infrared.c

@@ -0,0 +1,57 @@
+/*
+ * 人体红外线传感器
+ *
+ */
+
+#include <wiringPi.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+
+int is_num(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) {
+        printf("Parameter error.\n");
+        exit(1);
+    }
+    if (is_num(1, argv) == 0) {
+        printf("Parameter error, parameter 1 is PIN pin value\n");
+        exit(1);
+    }
+    
+    int pin = atol(argv[1]);
+    int status = 0;
+
+    wiringPiSetup();
+
+    pinMode(pin, INPUT);
+
+    pullUpDnControl(pin, PUD_DOWN);
+
+    status = digitalRead(pin);
+    printf("%d\n", status);
+
+    return status;
+}

gpio/key_light-interrupt.c

@@ -0,0 +1,54 @@
+/*
+ * raspberrypi GPIO key light 
+ * 功能：key等于1时，亮的灯灭、灭的灯亮
+ */
+ 
+#include <wiringPi.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define LIGHT 3                 // 灯PIN引脚
+#define KEY 4                   // 按键PIN引脚
+
+void buttonpressed(void);
+
+int main()
+{
+    if (-1 == wiringPiSetup()) {
+        exit(-1);
+    }
+    daemon(1, 1);
+    pinMode(LIGHT, OUTPUT);     // 灯PIN输出模式
+    pinMode(KEY, INPUT);        // 按键PIN输入模式
+    pullUpDnControl(KEY, PUD_DOWN); // 按键启用下拉电阻，引脚电平拉到GND
+
+    //注册中断处理函数, INT_EDGE_RISING是高电平触发
+    if (0 > wiringPiISR(KEY, INT_EDGE_RISING, buttonpressed)) {
+        exit(-1);
+    }
+
+    while (1) ;
+
+    return 0;
+}
+
+//中断处理函数：反转LED的电平
+void buttonpressed(void)
+{
+    //printf("%d\n", digitalRead(KEY));
+    delay(250);                 // 模拟人手按下开关的时间
+    int light_status = digitalRead(LIGHT); // 灯状态
+    int key_status = digitalRead(KEY); // 按键状态
+    if (key_status == 1) {
+        if (light_status == 0) {
+            digitalWrite(LIGHT, HIGH); // 开灯
+            return ;
+        }
+        if (light_status == 1) {
+            digitalWrite(LIGHT, LOW); // 关灯
+            return ;
+        }
+    }
+}

gpio/key_light.c

@@ -0,0 +1,48 @@
+/*
+ * raspberrypi key light 
+ * 功能：key等于1时，亮的灯灭、灭的灯亮
+ */
+
+#include <wiringPi.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define LIGHT 3                 // 灯PIN引脚
+#define KEY 4                   // 按键PIN引脚
+
+int main(int argc, char **argv) {
+    
+    daemon(1, 1);
+    
+    if(-1 == wiringPiSetup())
+    {
+        printf("wiringPi setup error\n");
+        exit(-1);
+    }
+    
+    pinMode(KEY, INPUT);            // 按键输入模式
+    pullUpDnControl(KEY, PUD_DOWN); // 按键启用下拉电阻，引脚电平拉到GND
+    pinMode(LIGHT, OUTPUT);         // 灯PIN引脚输出模式
+    
+    int light_status;
+    int key_status;
+    
+    
+    while(1){
+        light_status = digitalRead(LIGHT);  // 灯状态
+        key_status = digitalRead(KEY);      // 按键状态
+        if (key_status == 1) {
+            if (light_status == 0) {
+                digitalWrite(LIGHT, HIGH);  // 开灯
+            }
+            if (light_status == 1) {
+                digitalWrite(LIGHT, LOW);   // 关灯
+            }
+        }
+        printf("%d\n", digitalRead(KEY));
+        delay(200);
+        
+    }
+}

gpio/light.c

@@ -0,0 +1,58 @@
+/*
+ * 设置PIN脚为1或0电位(电压)
+ *
+ */
+
+#include <wiringPi.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int is_num(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 != 3) {
+        printf("Parameter error.\n");
+        exit(1);
+    }
+    if (is_num(1, argv) == 0) {
+        printf("Parameter error, parameter 1 is PIN pin value\n");
+        exit(1);
+    }
+    if (is_num(2, argv) == 0) {
+        printf("Parameter error, parameter 2 is true or false\n");
+        exit(1);
+    }
+
+    int pin = atol(argv[1]);
+    wiringPiSetup();
+
+    pinMode(pin, OUTPUT);
+    if (atol(argv[2]) == 1) {
+        digitalWrite(pin, HIGH);
+    }
+    if (atol(argv[2]) == 0) {
+        digitalWrite(pin, LOW);
+    }
+    return atol(argv[2]);
+}

gpio/pin.c

@@ -0,0 +1,49 @@
+/*
+ * 测试PIN脚是否1或0
+ *
+ */
+
+#include <wiringPi.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int is_num(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) {
+        printf("Parameter error.\n");
+        exit(1);
+    }
+    if (is_num(1, argv) == 0) {
+        printf("Parameter error, parameter 1 is PIN pin value\n");
+        exit(1);
+    }
+
+    int pin = atol(argv[1]);
+    wiringPiSetup();
+    pinMode(pin, OUTPUT);
+    printf("%d\n", digitalRead(pin));
+
+    return pin;
+}

gpio/sound.c

@@ -0,0 +1,57 @@
+/*
+ * 声音传感器
+ *
+ */
+
+#include <wiringPi.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+
+int is_num(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) {
+        printf("Parameter error.\n");
+        exit(1);
+    }
+    if (is_num(1, argv) == 0) {
+        printf("Parameter error, parameter 1 is PIN pin value\n");
+        exit(1);
+    }
+    
+    int pin = atol(argv[1]);
+    int status = 0;
+
+    wiringPiSetup();
+
+    pinMode(pin, INPUT);
+
+    //pullUpDnControl(pin, PUD_DOWN);
+
+    status = digitalRead(pin);
+    printf("%d\n", status);
+
+    return status;
+}

gpio/temperature.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+DATE=$(date "+%y年%m月%d日%H时%M分%S秒");
+T="$(/root/gpio/wind -d 28-031682c7baff)"
+echo "${DATE} ${T}" >> /root/temperature.data

gpio/ultrasound.c

@@ -0,0 +1,77 @@
+/*
+ * 超声波距离传感器
+ *
+ */
+
+#include <wiringPi.h>
+#include <sys/time.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+int is_num(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 != 3) {
+        printf("Parameter error.\n");
+        exit(1);
+    }
+    if (is_num(1, argv) == 0) {
+        printf("Parameter error, Parameter 1 is the tring pin\n");
+        exit(1);
+    }
+    if (is_num(2, argv) == 0) {
+        printf("Parameter error, Parameter 2 is the echo pin\n");
+        exit(1);
+    }    
+
+    int pin_tring = atol(argv[1]);
+    int pin_echo = atol(argv[2]);
+    struct timeval tv1;
+    struct timeval tv2;
+    long start_time, stop_time;
+    float distance;
+
+    if (wiringPiSetup() == -1) {
+        exit(0);
+        return 0;
+    }
+    digitalWrite(pin_tring, LOW);
+    digitalWrite(pin_tring, HIGH);
+    delayMicroseconds(10);
+    digitalWrite(pin_tring, LOW);
+
+    while (!(digitalRead(pin_echo) == 1)) ;
+    gettimeofday(&tv1, NULL);
+
+    while (!(digitalRead(pin_echo) == 0)) ;
+    gettimeofday(&tv2, NULL);
+
+    start_time = tv1.tv_sec * 1000000 + tv1.tv_usec;
+    stop_time = tv2.tv_sec * 1000000 + tv2.tv_usec;
+
+    distance = (float)(stop_time - start_time) / 1000000 * 34000 / 2;
+
+    printf("%0.0f\n", distance);
+    return distance;
+}

gpio/wind.c

@@ -1,9 +1,8 @@
-/* DS18B20 温度传感器
+/*
- *
+ * DS18B20 温度传感器(Debian jessie)
  *
  */
 
-
 #include <stdio.h>
 #include <unistd.h>
 #include <fcntl.h>
@@ -12,51 +11,27 @@
 #include <time.h>
 #include <stdlib.h>
 
-#define N 99
+#define BUF 270
 
-int main(int argc, char *argv[])
+int _read_ds18b20(char *device)
-{
-	int _main(char *optarg);
-
-    int ch;
-    opterr = 0;
-    while((ch = getopt(argc, argv, "d:h?")) != -1)
-	switch (ch) {
-	case 'd':
-        _main(optarg);
-	    break;
-	case 'h': case '?':
-        printf("wind -d device\n");
-	    exit(0);
-	    break;
-	default:
-	    ;
-	}
-	return 1;
-}
-
-int _main(char *optarg)
 {
     char path[50] = "/sys/bus/w1/devices/";
     char rom[20];
-    char buffer[N+1];
+    char buffer[BUF + 1];
     DIR *dirp;
     struct dirent *direntp;
     FILE *fp;
     char *temp;
     float value;
-    //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) {
+    if ((dirp = opendir(path)) == NULL) {
         exit(0);
     }
 
-    while((direntp = readdir(dirp)) != NULL) {
+    while ((direntp = readdir(dirp)) != NULL) {
-        if(strstr(direntp->d_name, optarg)) {
+        if (strstr(direntp->d_name, device)) {
             strcpy(rom, direntp->d_name);
         }
     }
@@ -69,7 +44,7 @@ int _main(char *optarg)
     if ((fp = fopen(path, "r")) < 0) {
         exit(0);                /* 文件不存在,则退出. */
     }
-    while(fgets(buffer, N, fp) != NULL){
+    while (fgets(buffer, BUF, fp) != NULL) {
         ;
     }
 
@@ -81,3 +56,23 @@ int _main(char *optarg)
     fclose(fp);
     return value;
 }
+
+int main(int argc, char *argv[])
+{
+    int ch;
+    opterr = 0;
+    while ((ch = getopt(argc, argv, "d:h?")) != -1)
+        switch (ch) {
+        case 'd':
+            _read_ds18b20(optarg);
+            break;
+        case 'h': case '?':
+            printf("wind -d device\n");
+            exit(0);
+            break;
+        default:
+            ;
+        }
+    return 1;
+}
+