为什么我拿openmv4控制两个舵机,舵机的转动角度有问题?
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我修改了一部分星瞳官方控制云台的代码,我是直接把舵机连在openmv4的舵机1口和2口上,只连接单个舵机的时候,舵机转动角度没问题。,但是两个同时控制的时候转动角度有问题,下面是我的代码
import sensor, image, time from pid import PID from pyb import Servo pan_servo=Servo(1) tilt_servo=Servo(2) red_threshold = (81, 15, 41, 119, 114, -62) pan_pid = PID(p=0.07, i=0, imax=90) #脱机运行或者禁用图像传输,使用这个PID tilt_pid = PID(p=0.05, i=0, imax=90) #脱机运行或者禁用图像传输,使用这个PID #pan_pid = PID(p=0.1, i=0, imax=90)#在线调试使用这个PID #tilt_pid = PID(p=0.1, i=0, imax=90)#在线调试使用这个PID sensor.reset() # Initialize the camera sensor. sensor.set_pixformat(sensor.RGB565) # use RGB565. sensor.set_framesize(sensor.QQVGA) # use QQVGA for speed. sensor.skip_frames(10) # Let new settings take affect. sensor.set_auto_whitebal(False) # turn this off. clock = time.clock() # Tracks FPS. def find_max(blobs): max_size=0 for blob in blobs: if blob[2]*blob[3] > max_size: max_blob=blob max_size = blob[2]*blob[3] return max_blob while(True): clock.tick() # Track elapsed milliseconds between snapshots(). img = sensor.snapshot() # Take a picture and return the image. blobs = img.find_blobs([red_threshold]) if blobs: max_blob = find_max(blobs) pan_error = (img.width()/2)-max_blob.cx() tilt_error = (img.height()/2)-max_blob.cy() img.draw_rectangle(max_blob.rect()) # rect img.draw_cross(max_blob.cx(), max_blob.cy()) # cx, cy pan_output=pan_pid.get_pid(pan_error,1)/1.2 tilt_output=tilt_pid.get_pid(tilt_error,1) pan_servo.angle(pan_servo.angle()-pan_output) tilt_servo.angle(tilt_servo.angle()-tilt_output)