【arduino代码纠错】_手机控制蓝牙小车 DF创客社区

simon_xu 发表于 2015-5-5 07:57:27

【arduino代码纠错】_手机控制蓝牙小车

本帖最后由 simon_xu 于 2015-5-6 19:30 编辑

大家好，我是新手，最近在自学做一辆用手机控制的蓝牙。
在网上找了一个蓝牙控制小车的代码（带加速功能），但验证时显示代码有误。错误信息：

Bluetooth_Car.ino: In function 'void Speed_Change(int)':

Bluetooth_Car.ino:139:27: error: wrong type argument to unary plus

希望大家能帮我看下，代码哪里有问题，谢谢大家！
附上代码：

/*********************************
程序名：蓝牙小车　　
/*********************************/

const int ENA = 8;
const int ENB = 9;
const int IN1 = 10;
const int IN2 = 11;
const int IN3 = 12;
const int IN4 = 13;
int uartready = 0;
int bluetooth_info = 0;
unsigned int car_flag = 0;
unsigned char uart_data_number = 0;
unsigned char uart_data;
unsigned char uart_test_data;
char UART_DATA;
int speed_data = 0;

void Forward(void)
{
digitalWrite(IN1, HIGH);
digitalWrite(IN2, LOW);
digitalWrite(IN3, LOW);
digitalWrite(IN4, HIGH);
}

void Back(void)
{
digitalWrite(IN1, LOW);
digitalWrite(IN2, HIGH);
digitalWrite(IN3, HIGH);
digitalWrite(IN4, LOW);
}

void Stop(void)
{
digitalWrite(IN1, LOW);
digitalWrite(IN2, LOW);
digitalWrite(IN3, LOW);
digitalWrite(IN4, LOW);
}

void Right_Forward(void)
{
digitalWrite(IN1, HIGH);
digitalWrite(IN2, LOW);
digitalWrite(IN3, LOW);
digitalWrite(IN4, LOW);
}

void Right_Back(void)
{
digitalWrite(IN1, LOW);
digitalWrite(IN2, HIGH);
digitalWrite(IN3, LOW);
digitalWrite(IN4, LOW);
}

void Right_Place(void)
{
digitalWrite(IN1, HIGH);
digitalWrite(IN2, LOW);
digitalWrite(IN3, HIGH);
digitalWrite(IN4, LOW);
}

void Lift_Forward(void)
{
digitalWrite(IN1, LOW);
digitalWrite(IN2, LOW);
digitalWrite(IN3, LOW);
digitalWrite(IN4, HIGH);
}

void Lift_Back(void)
{
digitalWrite(IN1, LOW);
digitalWrite(IN2, LOW);
digitalWrite(IN3, HIGH);
digitalWrite(IN4, LOW);
}

void Lift_Place(void)
{
digitalWrite(IN1, LOW);
digitalWrite(IN2, HIGH);
digitalWrite(IN3, LOW);
digitalWrite(IN4, HIGH);
}

void setup()
{
pinMode(IN1, OUTPUT);
pinMode(IN2, OUTPUT);
pinMode(IN3, OUTPUT);
pinMode(IN4, OUTPUT);
pinMode(ENA, OUTPUT);
pinMode(ENB, OUTPUT);

Stop();
digitalWrite(ENA, HIGH);
digitalWrite(ENB, HIGH);
Serial.begin(9600);
}

/*****************************************************************************
电机调速
/****************************************************************************/
void Speed_Change(int speed)
{
switch (speed)
{
case 0:
   analogWrite(ENA, 25);
   analogWrite(ENB, 25);
   break;
case 1:
   analogWrite(ENA, 50);
   analogWrite(ENB, 50);
   break;
   break;
case 2:
   analogWrite(ENA, 75);
   analogWrite(ENB, 75);
   break;
case 3:
   analogWrite(ENA, 100);
   analogWrite(ENB, 100);
   break;
case 4:
   analogWrite(ENA, 125);
   analogWrite(ENB, 125);
   break;
case 5:
   analogWrite(ENA, 150);+
   analogWrite(ENB, 150);
   break;
case 6:
   analogWrite(ENA, 175);
   analogWrite(ENB, 175);
   break;
case 7:
   analogWrite(ENA, 200);
   analogWrite(ENB, 200);
   break;
case 8:
   analogWrite(ENA, 255);
   analogWrite(ENB, 255);
   break;
default: break;
}
}

/*****************************************************************************
数据处理函数
/****************************************************************************/
void Data_Process(void)
{
if (uart_data == 'R' && uart_data == 'T')                                              //判断是否为小车控制
{
switch (uart_data)                                     //判断指令
{
   case '1': car_flag = 1;    break;

   case '2': car_flag = 2;    break;

   case '3': car_flag = 3;    break;

   case '4': car_flag = 4;    break;

   case '5': car_flag = 5;    break;

   case '6': car_flag = 6;    break;

   case '7':
   speed_data = speed_data + 1;
   if (speed_data >= 8)
      speed_data = 8;
   Speed_Change(speed_data);
   break;

   case '8': car_flag = 8;    break;

   case '9':
   speed_data = speed_data - 1;
   if (speed_data <= 0)
      speed_data = 0;
   Speed_Change(speed_data);
   break;

   default: break;
}
}
uart_data = 0;
uart_data = 0;
uart_data = 0;
uart_data = 0;
}

void loop()
{
while (Serial.available() > 0)
{
UART_DATA = Serial.read();

if (uartready == 1)
{
   uart_data = UART_DATA;
   uart_data_number++;
   if (uart_data == 'F')
   {
   Data_Process();
   uart_data_number = 0;
   }
}

//蓝牙数据标识符
if (UART_DATA == '+')
{
   bluetooth_info = 1;
   uart_data_number = 0;
}

//蓝牙数据处理
if (bluetooth_info == 1)
{
   uart_test_data = UART_DATA;
   uart_data_number++;
   if (uart_test_data == 'C' && uart_test_data == 'T' && uart_test_data == 'E' && uart_test_data == 'D' && uart_test_data == '\r' && uart_test_data == '\n')
   {
   uart_data_number = 0;
   uartready = 1;
   bluetooth_info = 0;
   }
}
}
switch (car_flag)                                     //判断指令
{
case 1: Lift_Forward();             break;
case 2: Forward();                break;
case 3: Right_Forward();             break;
case 4: Lift_Back();             break;
case 5: Stop();                   break;
case 6: Right_Back();             break;
case 8: Back();                   break;
default:                         break;
}
}

Ricky 发表于 2015-5-6 10:15:56

错误发出来看看

大连林海 发表于 2015-5-6 17:51:40

楼上建议你把错误截图发出来好帮助鉴别

Cain 发表于 2015-5-6 18:16:28

编译能过，除了你贴的代码里多了个+号

simon_xu 发表于 2015-5-6 19:29:13

Ricky 发表于 2015-5-6 10:15
错误发出来看看

Arduino:1.6.3 (Windows 7), 板："Arduino Uno"

Bluetooth_Car.ino: In function 'void Speed_Change(int)':

Bluetooth_Car.ino:139:27: error: wrong type argument to unary plus

编译有误。

simon_xu 发表于 2015-5-6 19:37:42

大连林海发表于 2015-5-6 17:51
楼上建议你把错误截图发出来好帮助鉴别

错误信息是这两条，谢谢啦！

Bluetooth_Car.ino: In function 'void Speed_Change(int)':

Bluetooth_Car.ino:139:27: error: wrong type argument to unary plus

simon_xu 发表于 2015-5-6 19:40:48

Cain 发表于 2015-5-6 18:16
编译能过，除了你贴的代码里多了个+号

谢谢，果然是这个原因，太感谢啦
:kiss:

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【arduino代码纠错】_手机控制蓝牙小车