diff --git a/main.c b/main.c
index 2d3bc47..298733b 100644
--- a/main.c
+++ b/main.c
@@ -123,7 +123,7 @@ int fd;
 int UPCASE=0;
 int count_value=0;
 int getPayloadTime=100*1000;//usecond
-char softwareVersion[16]="2.1.22";
+char softwareVersion[16]="2.1.23";
 //char stationsn[16]="d126ei4lj4cc00";//TJ250995217957
 //char productid[8]="10045";
 //char appSecret[64]="s3izIliw0CF48Pcsi16rjOmoFRf5WEt8";
@@ -832,40 +832,23 @@ void removeLog(){
     }
 }
 
-void enableWatchDog() {
-    // 使用 /dev/watchdog 设备，第一次喂狗自动开启看门狗
-    // 超时时间固定为5s，不喂狗时默认关闭
-    LOG_I("watchdog will be enabled on first feed\n");
+void enableWatchDog(){
+    system("echo 1 > /sys/class/gpio/export");//watchdog enable pin SGM820
+    system("echo 112 > /sys/class/gpio/export");//feed watchdog pin red
+    system("echo out > /sys/class/gpio/gpio1/direction");
+    system("echo out > /sys/class/gpio/gpio112/direction");
+    system("echo 1 > /sys/class/gpio/gpio1/value");
+    LOG_I("enable watchdog\n");
+    system("echo 1 > /sys/class/gpio/gpio112/value");
 }
 
-void feedWatchDog() {
-    // 使用 /dev/watchdog 设备喂狗
-    // 超时时间固定为5s，喂狗命令: echo "" > /dev/watchdog
-    int fd;
-    int gpio_fd = open("/sys/class/gpio/gpio112/value", O_WRONLY);
-    int led_state = 0;
-    
-    while(1) {
-        fd = open("/dev/watchdog", O_WRONLY);
-        if (fd < 0) {
-            LOG_I("can not open /dev/watchdog: %s\n", strerror(errno));
-            sleep(1);
-            continue;
-        }
-        write(fd, "", 1);
-        close(fd);
-        
-        // 喂狗时翻转 gpio112 灯状态
-        if (gpio_fd >= 0) {
-            led_state = !led_state;
-            write(gpio_fd, led_state ? "1" : "0", 1);
-        }
-        
-        sleep(1);  // 每2秒喂一次狗，超时时间为5s
-    }
-    
-    if (gpio_fd >= 0) {
-        close(gpio_fd);
+void feedWatchDog(){
+    while(1){
+        //LOG_I("feed watchdog\n");
+        system("echo 0 > /sys/class/gpio/gpio112/value");
+        usleep(100*1000);
+        system("echo 1 > /sys/class/gpio/gpio112/value");
+        sleep(1);
     }
 }
 
@@ -2980,109 +2963,8 @@ int main(int argc, char *argv[])
     char networktype[32]={0};
 
     LOG_I("version:%s\n",softwareVersion);
-    //system("insmod /system/lib/modules/wk2xxx_spi.ko");
+    system("insmod /system/lib/modules/wk2xxx_spi.ko");
     system("timedatectl set-timezone Asia/Shanghai");
-
-
-    // 导出 GPIO 63
-    {
-        int fd = open("/sys/class/gpio/export", O_WRONLY);
-        if (fd >= 0) {
-            write(fd, "63", 2);
-            close(fd);
-        }
-    }
-    // 设置 GPIO 63 方向为 in
-    {
-        int fd = open("/sys/class/gpio/gpio63/direction", O_WRONLY);
-        if (fd >= 0) {
-            write(fd, "in", 2);
-            close(fd);
-        }
-    }
-    // 导出 GPIO 113
-    {
-        int fd = open("/sys/class/gpio/export", O_WRONLY);
-        if (fd >= 0) {
-            write(fd, "112", 3);
-            write(fd, "113", 3);
-            write(fd, "114", 3);
-            write(fd, "115", 3);
-            write(fd, "117", 3);
-            close(fd);
-        }
-    }
-    {
-        int fd = open("/sys/class/gpio/gpio112/direction", O_WRONLY);
-        if (fd >= 0) {
-            write(fd, "out", 3);
-            close(fd);
-        }
-    }
-    // 设置 GPIO 113 方向为 out
-    {
-        int fd = open("/sys/class/gpio/gpio113/direction", O_WRONLY);
-        if (fd >= 0) {
-            write(fd, "out", 3);
-            close(fd);
-        }
-    }
-    #if 0
-    // 导出 GPIO 118
-    {
-        int fd = open("/sys/class/gpio/export", O_WRONLY);
-        if (fd >= 0) {
-            write(fd, "118", 3);
-            close(fd);
-        }
-    }
-    // 设置 GPIO 118 方向为 out
-    {
-        int fd = open("/sys/class/gpio/gpio118/direction", O_WRONLY);
-        if (fd >= 0) {
-            write(fd, "out", 3);
-            close(fd);
-        }
-    }
-    #endif
-    // 导出 GPIO 115
-    {
-        int fd = open("/sys/class/gpio/export", O_WRONLY);
-        if (fd >= 0) {
-            write(fd, "115", 3);
-            close(fd);
-        }
-    }
-    // 设置 GPIO 115 方向为 out
-    {
-        int fd = open("/sys/class/gpio/gpio115/direction", O_WRONLY);
-        if (fd >= 0) {
-            write(fd, "out", 3);
-            close(fd);
-        }
-    }
-    // 导出 GPIO 117
-    {
-        int fd = open("/sys/class/gpio/export", O_WRONLY);
-        if (fd >= 0) {
-            write(fd, "117", 3);
-            close(fd);
-        }
-    }
-    // 设置 GPIO 117 方向为 out
-    {
-        int fd = open("/sys/class/gpio/gpio117/direction", O_WRONLY);
-        if (fd >= 0) {
-            write(fd, "out", 3);
-            close(fd);
-        }
-    }
-
-    setGpio113High();
-    setGpio114High();
-    setGpio115High();
-    setGpio117High();
-
     uart_open(&uartSend,"/dev/ttyS0");//U12 ttyS0,U14 ttyS4,U21 ttysWK0 U13 ttysWK1 U15 ttysWK2 U22 ttysWK3 U20 ttyS1
     uart_init(&uartSend,115200,8,1,'N',0);
     uart_open(&uartRecvData,"/dev/ttyS4");
@@ -3091,13 +2973,12 @@ int main(int argc, char *argv[])
     uart_open(&uartRecvBack,"/dev/ttysWK0");
     uart_init(&uartRecvBack,115200,8,1,'N',0);
     //doCommand_help(0, NULL);
-    //system("echo 113 > /sys/class/gpio/export");//pin 113 yellow
-    //system("echo out > /sys/class/gpio/gpio113/direction");
-    //system("echo 63 > /sys/class/gpio/export");//pin 63 key
-    //system("echo in > /sys/class/gpio/gpio63/direction");
+    system("echo 113 > /sys/class/gpio/export");//pin 113 yellow
+    system("echo out > /sys/class/gpio/gpio113/direction");
+    system("echo 63 > /sys/class/gpio/export");//pin 63 key
+    system("echo in > /sys/class/gpio/gpio63/direction");
 #if 1
     enableWatchDog();
-
     ret = pthread_create(&pt_watchdog,NULL,thread_feed_watchdog,NULL);
     if(ret!=0){
        LOG_I("pthread_create watchdog fail\n");
@@ -3196,23 +3077,22 @@ int main(int argc, char *argv[])
        pthread_detach(pt_station_heartbeat);
     }
 
-    // 心跳检测线程移到MQTT连接成功后启动，避免MQTT未连接时上报失败
-    // ret = pthread_create(&pt_heartbeat_check,NULL,thread_heartbeat_check,NULL);
-    // if(ret!=0){
-    //    LOG_I("pthread_create heartbeat_check fail\n");
-    // }else{
-    //    LOG_I("pthread_create heartbeat_check success\n");
-    //    pthread_detach(pt_heartbeat_check);
-    // }
+    ret = pthread_create(&pt_heartbeat_check,NULL,thread_heartbeat_check,NULL);
+    if(ret!=0){
+       LOG_I("pthread_create heartbeat_check fail\n");
+    }else{
+       LOG_I("pthread_create heartbeat_check success\n");
+       pthread_detach(pt_heartbeat_check);
+    }
 
-#if 1
-    //ret = pthread_create(&pt_simulate_light,NULL,thread_simulate_light,NULL);
-    //if(ret!=0){
-    //   LOG_I("pthread_create simulate_light fail\n");
-    //}else{
-    //   LOG_I("pthread_create simulate_light success\n");
-    //   pthread_detach(pt_simulate_light);
-    //}
+#if 0
+    ret = pthread_create(&pt_simulate_light,NULL,thread_simulate_light,NULL);
+    if(ret!=0){
+       LOG_I("pthread_create simulate_light fail\n");
+    }else{
+       LOG_I("pthread_create simulate_light success\n");
+       pthread_detach(pt_simulate_light);
+    }
 
     ret = pthread_create(&pt_all_light,NULL,thread_all_light,NULL);
     if(ret!=0){
@@ -3221,14 +3101,6 @@ int main(int argc, char *argv[])
        LOG_I("pthread_create all_light success\n");
        pthread_detach(pt_all_light);
     }
-
-    //ret = pthread_create(&pt_simulate_mqtt_topic,NULL,thread_simulate_mqtt_topic,NULL);
-    //if(ret!=0){
-    //   LOG_I("pthread_create simulate_mqtt_topic fail\n");
-    //}else{
-    //   LOG_I("pthread_create simulate_mqtt_topic success\n");
-    //   pthread_detach(pt_simulate_mqtt_topic);
-    //}
 #endif
 #if 0
     readresult=file_to_buffer("mqttRawPassword",&len);
@@ -3377,4 +3249,4 @@ int main(int argc, char *argv[])
         }
     }
     return 0;
-}
+}
\ No newline at end of file
diff --git a/mqtt_utils/mqtt_utils.c b/mqtt_utils/mqtt_utils.c
index 6f0baee..6745e10 100644
--- a/mqtt_utils/mqtt_utils.c
+++ b/mqtt_utils/mqtt_utils.c
@@ -141,7 +141,7 @@ void *thread_yellow_led_flash(void *arg) {
         int delay_us = 100000 + (rand() % 400000);  // 100000-500000 微秒
         
         // 点亮黄灯
-        system("echo 1 > /sys/class/gpio/gpio114/value");
+        system("echo 1 > /sys/class/gpio/gpio113/value");
         
         // 随机延时保持亮
         usleep(delay_us);
@@ -150,14 +150,14 @@ void *thread_yellow_led_flash(void *arg) {
         if (!yellow_led_flash_running) break;
         
         // 熄灭黄灯
-        system("echo 0 > /sys/class/gpio/gpio114/value");
+        system("echo 0 > /sys/class/gpio/gpio113/value");
         
         // 随机延时保持灭
         usleep(delay_us);
     }
     
     // 确保退出时灯是灭的
-    system("echo 0 > /sys/class/gpio/gpio114/value");
+    system("echo 0 > /sys/class/gpio/gpio113/value");
     LOG_I("Yellow LED flash thread exited\n");
     return NULL;
 }
@@ -172,7 +172,7 @@ void mqtt_net_failure(int *failure_times){
     }
     pthread_mutex_unlock(&yellow_led_mutex);
     
-    system("echo 0 > /sys/class/gpio/gpio114/value");
+    system("echo 0 > /sys/class/gpio/gpio113/value");
     if(failure_times != NULL){
 	(*failure_times)++;
 	LOG_I("mqtt net failure_times = %d\n", *failure_times);
@@ -389,7 +389,7 @@ void mqtt_utils_connected(void *context, char *cause){
         if (ret != 0) {
             LOG_I("Failed to create yellow LED flash thread, using constant on\n");
             yellow_led_flash_running = false;
-            system("echo 1 > /sys/class/gpio/gpio114/value");//yellow ok
+            system("echo 1 > /sys/class/gpio/gpio113/value");//yellow ok
         } else {
             pthread_detach(pt_yellow_led_flash);
             LOG_I("Yellow LED flash thread started\n");