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极客工坊»首页 › Aduino与它的朋友们 › 求助区 › 求助代码问题
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求助代码问题

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小白7号
发表于 2014-12-15 19:01:14 | 显示全部楼层 |阅读模式
错误：




MB.ino: In function 'void loop()':
MB:46: error: invalid operands of types 'float' and 'int' to binary 'operator%'
MB:51: error: invalid operands of types 'float' and 'int' to binary 'operator%'
MB:57: error: invalid operands of types 'float' and 'int' to binary 'operator%'
MB:62: error: 'x' was not declared in this scope
代码：
//设置阴极接口
int a = 1;
int b = 2;
int c = 3;
int d = 4;
int e = 5;
int f = 6;
int g = 7;
int p = 8;
//设置阳极接口
int d4 = 9;
int d3 = 10;
int d2 = 11;
int d1 = 12;
//设置变量
int LM35=A0;
float f_LM35;
int del = 55;  

void setup()
{
  pinMode(d1, OUTPUT);
  pinMode(d2, OUTPUT);
  pinMode(d3, OUTPUT);
  pinMode(d4, OUTPUT);
  pinMode(a, OUTPUT);
  pinMode(b, OUTPUT);
  pinMode(c, OUTPUT);
  pinMode(d, OUTPUT);
  pinMode(e, OUTPUT);
  pinMode(f, OUTPUT);
  pinMode(g, OUTPUT);
  pinMode(p, OUTPUT);
    Serial.begin(9600);
}

void loop()
{
  LM35=analogRead(A0);
f_LM35=(float)LM35/1024*500;
Serial.println(f_LM35,2);
delay(2000);
  
  clearLEDs();
  pickDigit(1);
  pickNumber(f_LM35*100/1000%10);
  delayMicroseconds(del);

  clearLEDs();
  pickDigit(2);
  pickNumber((f_LM35*100/100)%10);
  delayMicroseconds(del);

  clearLEDs();
  pickDigit(3);
  dispDec(3);
  pickNumber((f_LM35*100/10)%10);
  delayMicroseconds(del);

  clearLEDs();
  pickDigit(4);
  pickNumber(f_LM35*100/x%10);
  delayMicroseconds(del);

  


}

void pickDigit(int x)  //定义pickDigit(x),其作用是开启dx端口
{
  digitalWrite(d1, LOW);
  digitalWrite(d2, LOW);
  digitalWrite(d3, LOW);
  digitalWrite(d4, LOW);

  switch(x)
  {
  case 1:
    digitalWrite(d1, HIGH);
    break;
  case 2:
    digitalWrite(d2, HIGH);
    break;
  case 3:
    digitalWrite(d3, HIGH);
    break;
  default:
    digitalWrite(d4, HIGH);
    break;
  }
}

void pickNumber(int x)   //定义pickNumber(x),其作用是显示数字x
{
  switch(x)
  {
  default:
    zero();
    break;
  case 1:
    one();
    break;
  case 2:
    two();
    break;
  case 3:
    three();
    break;
  case 4:
    four();
    break;
  case 5:
    five();
    break;
  case 6:
    six();
    break;
  case 7:
    seven();
    break;
  case 8:
    eight();
    break;
  case 9:
    nine();
    break;
  }
}

void dispDec(int x)  //设定开启小数点
{
  digitalWrite(p, LOW);
}

void clearLEDs()  //清屏
{
  digitalWrite(a, HIGH);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, HIGH);
  digitalWrite(p, HIGH);
}

void zero()  //定义数字0时阴极那些管脚开关
{
  digitalWrite(a, LOW);
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, HIGH);
}

void one()  //定义数字1时阴极那些管脚开关
{
  digitalWrite(a, HIGH);
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, HIGH);
}

void two()  //定义数字2时阴极那些管脚开关
{
  digitalWrite(a, LOW);
  digitalWrite(b, LOW);
  digitalWrite(c, HIGH);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, HIGH);
  digitalWrite(g, LOW);
}

void three()  //定义数字3时阴极那些管脚开关
{
  digitalWrite(a, LOW);
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, LOW);
}

void four()  //定义数字4时阴极那些管脚开关
{
  digitalWrite(a, HIGH);
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
}

void five()  //定义数字5时阴极那些管脚开关
{
  digitalWrite(a, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, HIGH);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
}

void six()  //定义数字6时阴极那些管脚开关
{
  digitalWrite(a, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
}

void seven()  //定义数字7时阴极那些管脚开关
{
  digitalWrite(a, LOW);
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, HIGH);
}

void eight()  //定义数字8时阴极那些管脚开关
{
  digitalWrite(a, LOW);
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
}

void nine()  //定义数字9时阴极那些管脚开关
{
  digitalWrite(a, LOW);
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, HIGH);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
}
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Super169
发表于 2014-12-15 19:32:51 | 显示全部楼层
不是已經說得很清楚了嗎?

MB:46: error: invalid operands of types 'float' and 'int' to binary 'operator%'
MB:51: error: invalid operands of types 'float' and 'int' to binary 'operator%'
MB:57: error: invalid operands of types 'float' and 'int' to binary 'operator%'
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小白7号
 楼主| 发表于 2014-12-15 21:35:23 | 显示全部楼层
重新发 lm35没问题 数码管显示不上去
代码：//设置阴极接口
int a = 1;
int b = 2;
int c = 3;
int d = 4;
int e = 5;
int f = 6;
int g = 7;
int p = 8;
//设置阳极接口
int d4 = 9;
int d3 = 10;
int d2 = 11;
int d1 = 12;
//设置变量
int LM35=A0;
int del = 55;  

void setup()
{
  pinMode(d1, OUTPUT);
  pinMode(d2, OUTPUT);
  pinMode(d3, OUTPUT);
  pinMode(d4, OUTPUT);
  pinMode(a, OUTPUT);
  pinMode(b, OUTPUT);
  pinMode(c, OUTPUT);
  pinMode(d, OUTPUT);
  pinMode(e, OUTPUT);
  pinMode(f, OUTPUT);
  pinMode(g, OUTPUT);
  pinMode(p, OUTPUT);
    Serial.begin(9600);
}

void loop()
{
long val = analogRead(LM35);
float temperature = (val*0.0048828125*100);
Serial.print(temperature);
Serial.println("C");
delay(2000);
  
  clearLEDs();
  pickDigit(1);
  pickNumber((int)temperature*100/1000%10);
  delayMicroseconds(del);

  clearLEDs();
  pickDigit(2);
  pickNumber(((int)temperature*100/100)%10);
  delayMicroseconds(del);

  clearLEDs();
  pickDigit(3);
  dispDec(3);
  pickNumber(((int) temperature*100/10)%10);
  delayMicroseconds(del);

  clearLEDs();
  pickDigit(4);
  pickNumber((int) temperature*100%10);
  delayMicroseconds(del);

  


}

void pickDigit(int x)  //定义pickDigit(x),其作用是开启dx端口
{
  digitalWrite(d1, LOW);
  digitalWrite(d2, LOW);
  digitalWrite(d3, LOW);
  digitalWrite(d4, LOW);

  switch(x)
  {
  case 1:
    digitalWrite(d1, HIGH);
    break;
  case 2:
    digitalWrite(d2, HIGH);
    break;
  case 3:
    digitalWrite(d3, HIGH);
    break;
  default:
    digitalWrite(d4, HIGH);
    break;
  }
}

void pickNumber(int x)   //定义pickNumber(x),其作用是显示数字x
{
  switch(x)
  {
  default:
    zero();
    break;
  case 1:
    one();
    break;
  case 2:
    two();
    break;
  case 3:
    three();
    break;
  case 4:
    four();
    break;
  case 5:
    five();
    break;
  case 6:
    six();
    break;
  case 7:
    seven();
    break;
  case 8:
    eight();
    break;
  case 9:
    nine();
    break;
  }
}

void dispDec(int x)  //设定开启小数点
{
  digitalWrite(p, LOW);
}

void clearLEDs()  //清屏
{
  digitalWrite(a, HIGH);
  digitalWrite(b, HIGH);
  digitalWrite(c, HIGH);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, HIGH);
  digitalWrite(p, HIGH);
}

void zero()  //定义数字0时阴极那些管脚开关
{
  digitalWrite(a, LOW);
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, HIGH);
}

void one()  //定义数字1时阴极那些管脚开关
{
  digitalWrite(a, HIGH);
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, HIGH);
}

void two()  //定义数字2时阴极那些管脚开关
{
  digitalWrite(a, LOW);
  digitalWrite(b, LOW);
  digitalWrite(c, HIGH);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, HIGH);
  digitalWrite(g, LOW);
}

void three()  //定义数字3时阴极那些管脚开关
{
  digitalWrite(a, LOW);
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, LOW);
}

void four()  //定义数字4时阴极那些管脚开关
{
  digitalWrite(a, HIGH);
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
}

void five()  //定义数字5时阴极那些管脚开关
{
  digitalWrite(a, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, HIGH);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
}

void six()  //定义数字6时阴极那些管脚开关
{
  digitalWrite(a, LOW);
  digitalWrite(b, HIGH);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
}

void seven()  //定义数字7时阴极那些管脚开关
{
  digitalWrite(a, LOW);
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, HIGH);
  digitalWrite(e, HIGH);
  digitalWrite(f, HIGH);
  digitalWrite(g, HIGH);
}

void eight()  //定义数字8时阴极那些管脚开关
{
  digitalWrite(a, LOW);
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, LOW);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
}

void nine()  //定义数字9时阴极那些管脚开关
{
  digitalWrite(a, LOW);
  digitalWrite(b, LOW);
  digitalWrite(c, LOW);
  digitalWrite(d, LOW);
  digitalWrite(e, HIGH);
  digitalWrite(f, LOW);
  digitalWrite(g, LOW);
}
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小白7号
 楼主| 发表于 2014-12-15 21:37:16 | 显示全部楼层
Super169 发表于 2014-12-15 19:32
不是已經說得很清楚了嗎?

MB:46: error: invalid operands of types 'float' and 'int' to binary 'oper ...

麻烦在看下
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Super169
发表于 2014-12-15 22:54:20 | 显示全部楼层
小弟是硬小白一名....軟件有問題或許可以幫得上, 如果是有關硬件(数码管显示)的問題....小弟也沒法了.
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