atTiny85 循环直到没有从 arduino 读取或超时

Question

我不想在我的 atTiny 中循环任何内容，直到我读取特定输入或达到最长时间为止。读数来自Arduino。

这是我的示例代码，但它似乎不起作用，代码直接跳出循环。

void openGate()
{
  //Set Read Gate to Pullup will LOW when closed and HIGH when open
  pinMode(readGate,INPUT_PULLUP); 

  //We want this PIN to output for the time the loop runs
  digitalWrite(pinGate, HIGH);

  whileCounter = 0;

  //Wait for Reading HIGH when the Arduino Opens the Output Pin
  //Or Exit when a certain time is reached
  while(digitalRead(readGate) == LOW || whileCounter >= waitTime ) { 

    delay(1);
    whileCounter++;  

  }
  digitalWrite(pinGate, LOW);
}

在 Arduino 中，我只是简单地将 PIN 更改为 OUTPUT，这部分工作正常。

pinMode(2, OUTPUT);
digitalWrite(2,LOW);

提前致谢！干杯

将注释中的代码更改为主循环

void loop(){
 if (f_wdt==1) {  // wait for timed out watchdog / flag is set when a watchdog timeout occurs
  if(circles <= count){
   //Start Setup our PINS and the millis to compare
   if(f_start==0){
    pinMode(pinGate,OUTPUT); //Set Gate as Output
    pinMode(readGate,INPUT_PULLUP); //Set Read Gate to Pullup will LOW when closed and HIGH when open
    unsigned long startMillis = millis(); //Snapshot of time
    f_start = 1;
   }
   if(f_start==1){
    digitalWrite(pinGate, HIGH); //Output High to MOSFET to open the gate
    if(digitalRead(readGate) == LOW) f_done = 1; //We got a signal, lets start new sleep circle
    unsigned long currentMillis = millis(); //Our current Millis
    if ((unsigned long)(currentMillis - startMillis) >= waitTime) f_done = 1;  //Timeout time is reached, lets start new sleep circle
   }

   if(f_done==1){
    digitalWrite(pinGate, LOW);
    pinMode(pinGate,INPUT); // set all used port to intput to save power
    pinMode(readGate,INPUT);
    f_start = 0;    // reset setup flag
    f_done = 0;     // reset open circle flag
    count = 0;      // reset sleep cycle count
    f_wdt=0;       // reset watchdog flag
    system_sleep(); // back to sleep little tiny
   }
  } else {
   count++;
   f_wdt=0;       // reset watchdog flag
   system_sleep(); // back to sleep little tiny
  }
 }
}

Answer 1

对不起，我脑子放屁了。 INPUT_PULLUP 是标准的 HIGH，whileCounter 是@Pawel 提到的错误方法。

  while(digitalRead(readGate) == HIGH && whileCounter <= waitTime ) {

对不起。

atTiny85 循环直到没有从 arduino 读取或超时

atTiny85 loop till no read from arduino OR timeout

arduino

attiny