diff --git a/wifi-mqtt/wifi-mqtt/wifi-mqtt.ino b/wifi-mqtt/wifi-mqtt/wifi-mqtt.ino
index 7250e3f..1f5d2bf 100644
--- a/wifi-mqtt/wifi-mqtt/wifi-mqtt.ino
+++ b/wifi-mqtt/wifi-mqtt/wifi-mqtt.ino
@@ -68,7 +68,7 @@ void setup() {
   //mqtt init
   //连接到mqtt代理
   client.setServer(mqtt_broker, mqtt_port);
-  client.setCallback(callback);
+  //client.setCallback(callback);
   while (!client.connected()) {
       String client_id = "esp8266-client-";
       client_id += String(WiFi.macAddress());
@@ -83,7 +83,7 @@ void setup() {
   }
   // 发布和订阅
   //client.publish(topic, "hello emqx");
-  client.subscribe(topic);
+  //client.subscribe(topic);
 
   /* 2. oled屏幕初始化 */
   oled.init();
@@ -149,15 +149,13 @@ void loop() {
       Serial.println(sendStr);
       client.publish(topic,sendStr.c_str());
 
+      oled.clear();
       oled.setFont(ArialMT_Plain_16);        // 设置字体
       oled.drawString(0, 0, wendu);  // 将要显示的文字写入缓存
       oled.drawString(0, 20,shidu);  // 将要显示的文字写入缓存
       oled.drawString(0, 40,sendStr);  // 将要显示的文字写入缓存
       oled.display();                        // 将缓存里的文字在屏幕上显示
-      digitalWrite(LED_BUILTIN, LOW);        // Turn the LED on
-      delay(300);
-      digitalWrite(LED_BUILTIN, HIGH);  // Turn the LED off
-      delay(500);
+      
     }else{
       Serial.println(client.state());
       String client_id = "esp8266-client-";