使用超声波传感器的Blynk通知

Question

这是我的代码，当距离大于150时，它实际上发送blynk通知。但是它的输出非常奇怪。它一次又一次地运行设置功能，而不是只运行一次。由于下面的代码，esp8266设备进入在线和离线状态，然后再次进入在线状态。你能告诉我为什么它一次又一次地运行setup函数吗?为什么它在输出中打印stack.......<<而不是serial.print()函数?我不知道为什么？我是Blynk新手。

int trigPin = D4;
int echoPin = D5;
int led=D6;
#define BLYNK_PRINT Serial

#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
#include <SPI.h>
char ssid[]="EVO-Charji-0A7E";
char pass[]="Kv4hFDEA";

int count=0;


// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "1CfQ53wXPctk_gnrk_-ItbTWSgycPHq5";

BlynkTimer timer;

void notifyUptime(){

  long uptime = millis() / 60000L;
  //millis() is a fuction which returns the number of seconds the time has elapsed after the start of the device
  Serial.println("Running for 5 times");
  long duration, distance;
  digitalWrite(trigPin,HIGH);
  delayMicroseconds(1000);
  digitalWrite(trigPin, LOW);
  duration=pulseIn(echoPin, HIGH);
  distance =(duration/2)/29.1;
  Serial.print(distance);
  Serial.println("CM");
  delay(10);

 if((distance<=150)) 
  {digitalWrite(led,LOW);
  Serial.println("enter");
    count=0;   unsigned long startTime=millis();
      unsigned long endTime=startTime;
      while((endTime-startTime) <=60000){
        if (distance>150){
          Blynk.notify("  Danger  \nGerms Alert!!!");
           Serial.println("leave");
          digitalWrite(led,HIGH);
          delay(1000);
          digitalWrite(led,LOW);
          delay(1000);
          digitalWrite(led,HIGH);
          count=count+1;
          break;
          }
        endTime=millis();
        }
        if (count==0){
          Blynk.notify("Successfully Cleaned the Hands.");
           Serial.println("success");
          digitalWrite(led,HIGH);
          }        
}
   else if(distance>150)
 {
  Serial.println("No man");  
   }
  //Blynk.notify(String("Running for ") + uptime + " minutes.");
  //   only one notification per 15 seconds is allowed. 
}
void setup(){
Serial.begin(9600);
WiFi.mode(WIFI_OFF);
  delay(1000);
  // This mode allows NodeMCU to connect any WiFi directly.
  WiFi.mode(WIFI_STA);        
  // Connect NodeMCU to your WiFi.
  WiFi.begin(ssid, pass);
    pinMode(trigPin, OUTPUT);
   pinMode(led,OUTPUT);
  pinMode(echoPin, INPUT);

  Serial.print("\n\n");
  Serial.print("Try to connect to WiFi. Please wait! ");
  Serial.print("\n\n");
  // Halt the code until connected to WiFi.
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print("*");
  }

  // If connection is successful, turn control led(if used) on and write WiFi SSID to serial monitor along with assigned IPAddress.
  Serial.print("\n\n");
  Serial.print("-------------------------------------");
  Serial.print("\n\n");
  Serial.print("Connection is successful!");
  Serial.print("\n\n");
  Serial.print("Connected WiFi SSID : ");
  Serial.print(ssid);
  Serial.print("\n\n");
  Serial.println("Connected IPAddress : ");
  Serial.println(WiFi.localIP());
  Serial.print("\n\n"); 
Blynk.begin(auth, ssid, pass);

Serial.println("Device statred");
//Blynk.notify("Device started");
   // Setup a function to be called every minute
  timer.setInterval(10000L,notifyUptime);
  }

void loop(){
  Blynk.run();
    timer.run();
    }

代码的输出如下所示：

Try to connect to WiFi. Please wait! 

**********

-------------------------------------

Connection is successful!

Connected WiFi SSID : EVO-Charji-0A7E

Connected IPAddress : 
192.168.1.108


[6243] Connecting to EVO-Charji-0A7E
[6283] Connected to WiFi
[6310] IP: 192.168.1.108
[6337] 
    ___  __          __
   / _ )/ /_ _____  / /__
  / _  / / // / _ \/  '_/
 /____/_/\_, /_//_/_/\_\
        /___/ v0.6.1 on NodeMCU

[6492] Connecting to blynk-cloud.com:80
[7572] Ready (ping: 482ms).
Device statred
Running for 5 times
0CM
enter

Soft WDT reset

>>>stack>>>

ctx: cont
sp: 3ffffd40 end: 3fffffc0 offset: 01b0
3ffffef0:  00000000 00000000 00418937 00000000  
3fffff00:  402039e8 3ffeec9c 40100259 4bc6a7f0  
3fffff10:  00000000 3ffeec9c 3ffe886e 40203cc9  
3fffff20:  0056faef 00000005 3ffeec9c 40203d90  
3fffff30:  3ffee9c8 00000000 3ffeec9c 00000000  
3fffff40:  000044f1 3ffeec0c 3ffeec9c 402010c2  
3fffff50:  3ffee9c8 00000000 3ffee9c8 4020394c  
3fffff60:  00001dd7 00002710 000044e7 00000000  
3fffff70:  00000001 00000002 3ffeec9c 40202085  
3fffff80:  00000000 00000000 00000001 3ffeedc8  
3fffff90:  3fffdad0 00000000 3ffeed88 402020c1  
3fffffa0:  3fffdad0 00000000 3ffeed88 40204668  
3fffffb0:  feefeffe feefeffe 3ffe8528 40100cad  
<<<stack<<<
H!⸮ԅp⸮D⸮⸮⸮

Try to connect to WiFi. Please wait! 

**********

-------------------------------------

Connection is successful!

Connected WiFi SSID : EVO-Charji-0A7E

Connected IPAddress : 
192.168.1.108


[6244] Connecting to EVO-Charji-0A7E
[6284] Connected to WiFi
[6311] IP: 192.168.1.108
[6338] 
    ___  __          __
   / _ )/ /_ _____  / /__
  / _  / / // / _ \/  '_/
 /____/_/\_, /_//_/_/\_\
        /___/ v0.6.1 on NodeMCU

[6494] Connecting to blynk-cloud.com:80
[7381] Ready (ping: 478ms).
Device statred

.......it会一次又一次地打印出来。任何帮助都将不胜感激。

Answer 1

我现在有点晚了，但我希望你还能读到这篇文章。

你的问题很简单，你多次尝试连接到WiFi。设置函数应如下所示：

void setup() {
  Serial.begin(9600);

  pinMode(trigPin, OUTPUT);
  pinMode(led, OUTPUT);
  pinMode(echoPin, INPUT);


  Blynk.begin(auth, ssid, pass);

  Serial.println("Device statred");
  //Blynk.notify("Device started");
  // Setup a function to be called every minute
  timer.setInterval(10000L, notifyUptime);
}