update

lib/gpio.h

 #ifndef __GPIO_H__
 #define __GPIO_H__
 
-
+// 定义 PWM 引脚的 WiringPi 编号
+#define PWM_PIN 1
+// 定义 PWM 频率为 50Hz
+#define PWM_FREQ 50
+// 定义占空比范围，这里设置为 0 到 1000
+#define MIN_DUTY 0
+#define MAX_DUTY 1000
 
 
 #endif
\ No newline at end of file

src/gpio.c

-#include "wiringPi.h"
+#include <wiringPi.h>
\ No newline at end of file
+#include <stdio.h>
+#include <stdlib.h>
+
+

src/opensh.c

@@ -35,35 +35,33 @@ int opencamsh()
     
 }
 
-void refresh_cam()//使用xdottol进行模拟刷新页面
-{
-  //system(SHELLFILECLOSE);
-    setenv("XAUTHORITY", "/home/orangepi/.Xauthority", 1);
-   const char *search_command = "xdotool search --name \"Mozilla chromium-browser\"";
+
+void refresh_cam() {//刷新页面
+    setenv("XAUTHORITY", "/home/orangepi/.Xauthority", 1);//加入授权
+    const char *search_command = "xdotool search --class \"chromium-browser\"";//获取窗口id
     FILE *fp = popen(search_command, "r");
     if (!fp) {
         perror("Failed to execute search command");
         return;
     }
-
     char window_id[32];
     while (fgets(window_id, sizeof(window_id), fp) != NULL) {
-        // 去掉换行符
         window_id[strcspn(window_id, "\n")] = '\0';
-
-        // 使用 xdotool 激活窗口并发送 Ctrl+r 快捷键进行刷新
         char activate_command[128];
         snprintf(activate_command, sizeof(activate_command), "xdotool windowactivate --sync %s key Ctrl+r", window_id);
-
-        printf("Executing: %s\n", activate_command);
-        if (system(activate_command) != 0) {
-            fprintf(stderr, "Failed to refresh window with ID: %s\n", window_id);
+        pid_t pid = fork();
+        if (pid == 0) {
+            // 子进程执行命令
+            execl("/bin/sh", "sh", "-c", activate_command, (char *)NULL);
+            perror("Failed to execute command");
+            exit(EXIT_FAILURE);
+        } else if (pid > 0) {
+            // 父进程不等待子进程结束，继续执行
+            printf("Executing in child process: %s\n", activate_command);
         } else {
-            printf("Refreshed window with ID: %s\n", window_id);
+            perror("Failed to fork");
         }
     }
-
-    // 关闭文件指针
     pclose(fp);
     printf("recam\n");
 }

usr/main.c

@@ -13,6 +13,8 @@
 #include <netinet/in.h>
 #include <arpa/inet.h>
 #include <ifaddrs.h>
+#include <wiringPi.h>
+#include "gpio.h"
 #include "gps.h"
 #include "main.h"
 #include "ip.h"
@@ -24,7 +26,7 @@
 char buffer[30]; // 用于存储文件内容
 
 
-pthread_mutex_t topic3_mutex;
+
 
 void *serial_usart1(void *arg)
 { 
@@ -65,9 +67,7 @@ void *Mqttbeat(void *arg)
     printf("Mqttbeat start\n");
     Delay_Ms(30,0);
     refresh_cam();
-    Delay_Ms(5,0);
-    refresh_cam();
-    Delay_Ms(20,0);
+    Delay_Ms(10,0);
     refresh_cam();
     Delay_Ms(10,0);
    
@@ -75,9 +75,7 @@ void *Mqttbeat(void *arg)
     {
         ipaddr();//获取ip
         Delay_Ms(3,0);
-        pthread_mutex_lock(&topic3_mutex);
         mqtt_wirte();//心跳，3s一个
-        pthread_mutex_unlock(&topic3_mutex);
         
     }
     
@@ -88,9 +86,7 @@ void *Mqttbeat(void *arg)
 void *opensh(void *arg)
 { 
     Delay_Ms(10,0);
-    pthread_mutex_lock(&topic3_mutex);
      printf("open cam\n");
-     pthread_mutex_unlock(&topic3_mutex);
     opencamsh();//10s后打开火狐游览器并且进入网址
     
    return NULL; 
@@ -108,10 +104,8 @@ void *serial_usart2(void *arg)
 void *Mqtt_onnect(void *arg)
 {
     Delay_Ms(5,0);
-    pthread_mutex_lock(&topic3_mutex);
     mqtt_init();//mqtt初始化
     mqtt_create(mosq);//创建mqtt客户端
-    pthread_mutex_unlock(&topic3_mutex);
     while(1)
     {
     mqtt_create(mosq);     
@@ -156,9 +150,9 @@ char *device_inspect()
 int main(int argc, char *argv[]) {
 
 
- if (pthread_mutex_init(&topic3_mutex, NULL) != 0) {
-        fprintf(stderr, "Mutex initialization failed\n");
-        return EXIT_FAILURE;
+  if (wiringPiSetup() == -1) {
+        printf("WiringPi setup failed!\n");
+        return 1;
     }
 
     Delay_Ms(10,0);
@@ -172,12 +166,10 @@ int main(int argc, char *argv[]) {
     //TOPIC3=device_inspect();//读取文件内容
     //sprintf(TOPIC3,"%s",buffer);
     //strcpy(TOPIC3,device_inspect());
-    pthread_mutex_lock(&topic3_mutex);
     sprintf(TOPIC2,"dev2app/%s",readbuf);
     sprintf(TOPIC,"app2dev/%s",readbuf);
     sprintf(TOPIC3,"%s",readbuf);
     printf("1:%s,2:%s,3:%s\n",TOPIC,TOPIC2,TOPIC3);
-    pthread_mutex_unlock(&topic3_mutex);
     system("pkill chromium-browser");
     
     gStart=time(NULL);//开始时间戳