基于arduino +l293d 的蓝牙小车代码
时间: 2024-06-11 22:06:23 浏览: 10
很抱歉,作为AI语言模型,我无法提供实际的硬件控制代码。但是,以下是一个基于Arduino和L293D的蓝牙小车代码的示例,供您参考:
```
#include <SoftwareSerial.h>
// Motor A connections
int enA = 9;
int in1 = 8;
int in2 = 7;
// Motor B connections
int enB = 3;
int in3 = 5;
int in4 = 4;
// Define software serial object for Bluetooth communication
SoftwareSerial bluetooth(10, 11); // RX, TX
void setup() {
// Set all the motor control pins to outputs
pinMode(enA, OUTPUT);
pinMode(in1, OUTPUT);
pinMode(in2, OUTPUT);
pinMode(enB, OUTPUT);
pinMode(in3, OUTPUT);
pinMode(in4, OUTPUT);
// Set the baud rate of the Bluetooth module
bluetooth.begin(9600);
}
void loop() {
// Read data from Bluetooth module
if (bluetooth.available() > 0) {
char command = bluetooth.read();
// Move forward
if (command == 'F') {
digitalWrite(in1, HIGH);
digitalWrite(in2, LOW);
digitalWrite(in3, HIGH);
digitalWrite(in4, LOW);
analogWrite(enA, 255);
analogWrite(enB, 255);
}
// Move backward
else if (command == 'B') {
digitalWrite(in1, LOW);
digitalWrite(in2, HIGH);
digitalWrite(in3, LOW);
digitalWrite(in4, HIGH);
analogWrite(enA, 255);
analogWrite(enB, 255);
}
// Turn left
else if (command == 'L') {
digitalWrite(in1, LOW);
digitalWrite(in2, HIGH);
digitalWrite(in3, HIGH);
digitalWrite(in4, LOW);
analogWrite(enA, 255);
analogWrite(enB, 255);
}
// Turn right
else if (command == 'R') {
digitalWrite(in1, HIGH);
digitalWrite(in2, LOW);
digitalWrite(in3, LOW);
digitalWrite(in4, HIGH);
analogWrite(enA, 255);
analogWrite(enB, 255);
}
// Stop
else if (command == 'S') {
digitalWrite(in1, LOW);
digitalWrite(in2, LOW);
digitalWrite(in3, LOW);
digitalWrite(in4, LOW);
analogWrite(enA, 0);
analogWrite(enB, 0);
}
}
}
```
该代码使用了SoftwareSerial库来创建一个软件串口对象,用于与蓝牙模块进行通信。接着在setup函数中对各个电机控制引脚进行初始化,并设置蓝牙模块的波特率为9600。在loop函数中,通过读取蓝牙模块发送的数据来控制小车的运动方向。具体来说,当接收到'F'时,小车向前行驶;当接收到'B'时,小车向后行驶;当接收到'L'时,小车向左转;当接收到'R'时,小车向右转;当接收到'S'时,小车停止运动。在以上情况下,通过控制各个电机引脚的电平和PWM输出来实现小车的控制。
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