单片机实现当红外对射传感器检测到前方有物体时控制舵机旋转30度
时间: 2023-04-10 18:04:50 浏览: 166
可以使用以下代码实现:
```
#include <Servo.h>
Servo myservo; // 创建舵机对象
int irPin = 2; // 红外对射传感器连接的引脚
void setup() {
myservo.attach(9); // 将舵机连接到引脚9
pinMode(irPin, INPUT); // 将红外对射传感器连接的引脚设置为输入模式
}
void loop() {
if (digitalRead(irPin) == HIGH) { // 如果检测到物体
myservo.write(30); // 控制舵机旋转30度
delay(1000); // 延迟1秒
}
}
```
当红外对射传感器检测到前方有物体时,舵机会旋转30度。
相关问题
三个红外对射传感器的数字输出端口分别连接到PA11、PA12、PA13,三个舵机的信号线分别连接在PB11、PB12、PB13,使用C语言使STM32F103C8系列单片机实现当红外对射传感器检测到前方有物体时控制舵机旋转90度
可以使用以下代码实现:
```
#include "stm32f10x.h"
int main(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
// Enable GPIOA and GPIOB clocks
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB, ENABLE);
// Configure PA11, PA12, and PA13 as input pins
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_13;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// Configure PB11, PB12, and PB13 as output pins
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_13;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStructure);
// Enable TIM2 clock
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
// Configure TIM2 to generate PWM signals
TIM_TimeBaseStructure.TIM_Period = 20000 - 1; // 20ms period
TIM_TimeBaseStructure.TIM_Prescaler = 72 - 1; // 1us resolution
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);
// Configure TIM2 channel 4 to generate PWM signal for PB11
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = 1500; // 1.5ms pulse width (centered)
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OC4Init(TIM2, &TIM_OCInitStructure);
TIM_OC4PreloadConfig(TIM2, TIM_OCPreload_Enable);
// Configure TIM2 channel 3 to generate PWM signal for PB12
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = 1500; // 1.5ms pulse width (centered)
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OC3Init(TIM2, &TIM_OCInitStructure);
TIM_OC3PreloadConfig(TIM2, TIM_OCPreload_Enable);
// Configure TIM2 channel 2 to generate PWM signal for PB13
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = 1500; // 1.5ms pulse width (centered)
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;
TIM_OC2Init(TIM2, &TIM_OCInitStructure);
TIM_OC2PreloadConfig(TIM2, TIM_OCPreload_Enable);
// Start TIM2
TIM_Cmd(TIM2, ENABLE);
while (1)
{
// Check if all three infrared sensors detect an object
if (GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_11) &&
GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_12) &&
GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_13))
{
// Rotate all three servos 90 degrees
TIM_SetCompare4(TIM2, 2250); // PB11
TIM_SetCompare3(TIM2, 2250); // PB12
TIM_SetCompare2(TIM2, 2250); // PB13
}
else
{
// Reset all three servos to center position
TIM_SetCompare4(TIM2, 1500); // PB11
TIM_SetCompare3(TIM2, 1500); // PB12
TIM_SetCompare2(TIM2, 1500); // PB13
}
}
}
```
cc2530的P1.5管脚接红外传感器检测到物体,P1.0管脚连接的舵机转动90度的代码
以下是基于cc2530的P1.5管脚接红外传感器检测到物体,P1.0管脚连接的舵机转动90度的代码示例:
```c
#include <ioCC2530.h>
#define SERVO_PIN P1_0
#define IR_SENSOR_PIN P1_5
void delay(int time) {
while (time--) {
__delay_cycles(48000); // 延时约1ms
}
}
void servo_rotate(int degree) {
int pulse_width = 1000 + degree * 10; // 0°对应1000us脉宽,每增加1°增加10us脉宽
int cycles = pulse_width / 24; // 脉冲周期为24us
int i;
for (i = 0; i < 50; i++) { // 50个脉冲周期
SERVO_PIN = 1;
delay(cycles);
SERVO_PIN = 0;
delay(200 - cycles);
}
}
void main() {
P1SEL &= ~(1 << 0); // P1.0设为普通I/O口
P1DIR |= (1 << 0); // P1.0设为输出
P1SEL &= ~(1 << 5); // P1.5设为普通I/O口
P1DIR &= ~(1 << 5); // P1.5设为输入
while (1) {
if (IR_SENSOR_PIN) { // 红外传感器检测到物体
servo_rotate(90); // 转动舵机到90°
} else {
servo_rotate(0); // 转动舵机到0°
}
}
}
```
该代码使用P1.0管脚连接舵机,通过产生不同脉宽的PWM信号来控制舵机转动角度。红外传感器连接在P1.5管脚,当检测到物体时,舵机转动到90°,否则转动到0°。注意,该代码仅供参考,实际应用中需要根据具体情况做出相应的调整和优化。