树莓派配置的tb6612电机驱动代码
时间: 2024-03-10 17:48:57 浏览: 121
以下是一个简单的Python示例代码,用于控制树莓派上的TB6612电机驱动器:
```python
import RPi.GPIO as GPIO
import time
# 设置GPIO口模式为BCM编码方式
GPIO.setmode(GPIO.BCM)
# 定义引脚
AIN1 = 27
AIN2 = 17
PWMA = 22
BIN1 = 23
BIN2 = 24
PWMB = 25
# 设置引脚为输出模式
GPIO.setup(AIN1, GPIO.OUT)
GPIO.setup(AIN2, GPIO.OUT)
GPIO.setup(PWMA, GPIO.OUT)
GPIO.setup(BIN1, GPIO.OUT)
GPIO.setup(BIN2, GPIO.OUT)
GPIO.setup(PWMB, GPIO.OUT)
# 设置PWM引脚和频率为1000
pwm_a = GPIO.PWM(PWMA, 1000)
pwm_b = GPIO.PWM(PWMB, 1000)
pwm_a.start(0)
pwm_b.start(0)
# 前进
def forward():
GPIO.output(AIN1, GPIO.HIGH)
GPIO.output(AIN2, GPIO.LOW)
GPIO.output(BIN1, GPIO.HIGH)
GPIO.output(BIN2, GPIO.LOW)
# 后退
def backward():
GPIO.output(AIN1, GPIO.LOW)
GPIO.output(AIN2, GPIO.HIGH)
GPIO.output(BIN1, GPIO.LOW)
GPIO.output(BIN2, GPIO.HIGH)
# 左转
def left():
GPIO.output(AIN1, GPIO.LOW)
GPIO.output(AIN2, GPIO.HIGH)
GPIO.output(BIN1, GPIO.HIGH)
GPIO.output(BIN2, GPIO.LOW)
# 右转
def right():
GPIO.output(AIN1, GPIO.HIGH)
GPIO.output(AIN2, GPIO.LOW)
GPIO.output(BIN1, GPIO.LOW)
GPIO.output(BIN2, GPIO.HIGH)
# 停止
def stop():
GPIO.output(AIN1, GPIO.LOW)
GPIO.output(AIN2, GPIO.LOW)
GPIO.output(BIN1, GPIO.LOW)
GPIO.output(BIN2, GPIO.LOW)
# 设置占空比
def set_speed(speed):
pwm_a.ChangeDutyCycle(speed)
pwm_b.ChangeDutyCycle(speed)
# 控制电机运动
while True:
forward()
set_speed(50)
time.sleep(2)
stop()
time.sleep(1)
backward()
set_speed(50)
time.sleep(2)
stop()
time.sleep(1)
left()
set_speed(50)
time.sleep(2)
stop()
time.sleep(1)
right()
set_speed(50)
time.sleep(2)
stop()
time.sleep(1)
# 清空GPIO口
GPIO.cleanup()
```
这个代码中的函数可以控制电机的运动方向,以及占空比来控制电机的转速。在代码的最后,使用 `GPIO.cleanup()` 函数来清空GPIO口,以免对下一次使用造成影响。
阅读全文