I am looking for some advice on how to properly get my servo working correctly. I have wired it up and it appears to be working correctly. The problem I have is with the signalling causing a twitching. The servo a TowerPro MG995 brushless. I noticed that the GPIO.PWM takes a second argument for frequency and have tried other frequencies and it only gets worse. Any suggestions would be greatly appreciated.
from Tkinter import * import RPi.GPIO as GPIO import time GPIO.setmode(GPIO.BCM) GPIO.setup(18, GPIO.OUT) pwm = GPIO.PWM(18, 100) pwm.start(5) class App: def __init__(self, master): frame = Frame(master) frame.pack() scale = Scale(frame, from_=0, to=180, orient=HORIZONTAL, command=self.update) scale.grid(row=0) def update(self, angle): duty = float(angle) / 10.0 + 2.5 pwm.ChangeDutyCycle(duty) root = Tk() root.wm_title('Servo Control') app = App(root) root.geometry("200x50+0+0") root.mainloop()