在Arduino上绘制OK，在Wemos D1R2上失败的原因？

我正在使用此处读取卡尺测量值的代码：
://www.instructables.com/id/Interfacing-a-Digital-Micrometer-to-a-Microcontrol/在 Arduino Uno 上运行良好。现在我打算有一套测量设备，每个都基于Wemos D1R2，通过wifi将数据发送到服务器。
具体我现在的版本是这样的：
代码：全选#define Dest 2 //1=Arduino Uno; 2=Wemos D1R2&mini
#if Dest==1 //Uno
int req = 5; //mic REQ line goes to pin 5 through q1 (arduino high pulls request line low)
int dat = 2; //mic Data line goes to pin 2
int clk = 3; //mic Clock line goes to pin 3
#endif
#if Dest==2 //Wemos D1R2&mini
int req = D5; //mic REQ line goes to pin 5 through q1 (arduino high pulls request line low)
int dat = D2; //mic Data line goes to pin 2
int clk = D3; //mic Clock line goes to pin 3
#endif
int i = 0;
int j = 0;
int k = 0;
int signCh = 8;
int sign = 0;
int decimal;
float dpp;
int units;
byte mydata[14];
String value_str;
long value_int; //was an int, could not measure over 32mm
float value;
void setup() {//******************************************************************************
  Serial.begin(9600);
  Serial.println("setup start");  
  pinMode(req, OUTPUT);
  pinMode(clk, INPUT_PULLUP);
  pinMode(dat, INPUT_PULLUP);
  digitalWrite(req,LOW); // set request at high
  Serial.println("setup end");  
}
void loop() { //******************************************************************************
  Serial.println("loop start");  
  digitalWrite(req, HIGH); // generate set request
  for( i = 0; i < 13; i++ ) {
    k = 0;
    for (j = 0; j < 4; j++) {
      Serial.print("j=");  Serial.println(j);  
      while( digitalRead(clk) == LOW) {
        Serial.println("here");  
      } // hold until clock is high
      while( digitalRead(clk) == HIGH) {
      } // hold until clock is low
      bitWrite(k, j, (digitalRead(dat) & 0x1));
    }
    mydata = k;
  }
  sign = mydata[4];
  value_str = String(mydata[5]) + String(mydata[6]) + String(mydata[7]) + String(mydata[8] + String(mydata[9] + String(mydata[10]))) ;
  decimal = mydata[11];
  units = mydata[12];
  value_int = value_str.toInt();
  if (decimal == 0) dpp = 1.0;
  if (decimal == 1) dpp = 10.0;
  if (decimal == 2) dpp = 100.0;
  if (decimal == 3) dpp = 1000.0;
  if (decimal == 4) dpp = 10000.0;
  if (decimal == 5) dpp = 100000.0;
  value = value_int / dpp;
  if (sign == 0) {
    Serial.println(value,decimal);
  }
  if (sign == 8) {Serial.print("-"); Serial.println(value,decimal);}
  digitalWrite(req,LOW);
  delay(100);
}

但是在 Wemos D1R2 上使用草图时，出现如下“软 WDT 重置”错误：
代码：全选setup start
Soft WDT reset
ctx: cont
sp: 3ffef200 end: 3ffef460 offset: 01b0
>>>stack>>>
3ffef3b0:  feefeffe 3ffee32c 3ffee40c 40201f64  
3ffef3c0:  0000001c 00000000 3ffee40c 40100574  
3ffef3d0:  feefeffe 00000001 3ffe84a1 40202d44  
3ffef3e0:  00000000 00000008 3ffe844c 3ffee430  
3ffef3f0:  3fffdad0 00000009 3ffee40c 402023c5  
3ffef400:  3ffe84a0 3ffe8360 3ffee40c 402023c5  
3ffef410:  3ffe8444 feefeffe 3ffee40c 402023f0  
3ffef420:  feefeffe feefeffe 3ffee40c 40202414  
3ffef430:  3fffdad0 3ffe8360 3ffee40c 3ffee430  
3ffef440:  3fffdad0 00000000 3ffee428 40202b44  
3ffef450:  feefeffe feefeffe 3ffee440 40100114  
<< 我知道 Wemos 上有不同的引脚布局/功能。我试过其他一些别针，但一点用都没有。目前选项用完