用C语言写一个基于Stm32f407 的循迹小车的循迹代码
时间: 2023-03-23 14:01:51 浏览: 540
以下是基于Stm32f407的循迹小车的循迹代码示例:
```
#include "stm32f4xx.h"
#define LEFT_SENSOR_PIN GPIO_Pin_0
#define RIGHT_SENSOR_PIN GPIO_Pin_1
#define LEFT_MOTOR_PIN GPIO_Pin_2
#define RIGHT_MOTOR_PIN GPIO_Pin_3
void delay(uint32_t time) {
while (time--);
}
int main(void) {
// 初始化GPIO端口
GPIO_InitTypeDef GPIO_InitStructure;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
GPIO_InitStructure.GPIO_Pin = LEFT_SENSOR_PIN | RIGHT_SENSOR_PIN | LEFT_MOTOR_PIN | RIGHT_MOTOR_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
while (1) {
if (GPIO_ReadInputDataBit(GPIOA, LEFT_SENSOR_PIN) && GPIO_ReadInputDataBit(GPIOA, RIGHT_SENSOR_PIN)) {
// 直行
GPIO_SetBits(GPIOA, LEFT_MOTOR_PIN | RIGHT_MOTOR_PIN);
} else if (GPIO_ReadInputDataBit(GPIOA, LEFT_SENSOR_PIN)) {
// 左转
GPIO_SetBits(GPIOA, RIGHT_MOTOR_PIN);
GPIO_ResetBits(GPIOA, LEFT_MOTOR_PIN);
} else if (GPIO_ReadInputDataBit(GPIOA, RIGHT_SENSOR_PIN)) {
// 右转
GPIO_SetBits(GPIOA, LEFT_MOTOR_PIN);
GPIO_ResetBits(GPIOA, RIGHT_MOTOR_PIN);
} else {
// 停止
GPIO_ResetBits(GPIOA, LEFT_MOTOR_PIN | RIGHT_MOTOR_PIN);
}
delay(1000);
}
}
```
此代码实现了基于两个红外传感器的循迹功能,通过读取传感器信号来判断小车的位置,然后通过控制电机的转动方向实现小车的移动。请注意,这仅是一个示例代码,实际应用中还需要考虑许多其他因素,例如控制算法、PID控制等等。
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