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# By kaputtnikk                                                                 #
#                                                                               #
# Trying to achieve the same as the Arduino-Nano-Example By DrCrowller          #
# https://wokwi.com/projects/328312829780165204                                 #                                                                                                          #
# just using  Pi Pico / RP 2040 and MicroPython.                                #
#                                                                               #
# Created : 18 Feb. 2025                                                        #
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# loading libs
from machine import Pin, PWM
from time import sleep

# define pins
servo_pin = 17
pwm = PWM(Pin(servo_pin))
pwm.freq(50)
button_l = Pin(7, Pin.IN, Pin.PULL_UP)
button_r = Pin(6, Pin.IN, Pin.PULL_UP)

# define some positions might be useful
# 0 degrees
deg000 = 500000
# 90 degrees
deg090 = 1470000 
# 180 degrees
deg180 = 2400000 

# defining position and step
pos = deg090  # starting position
step = 200000 # works fine here

while True:
  if button_l.value() == 0: # check if button was pressed
      if pos >= (deg000 + step): # check if full step possible
       pwm.duty_ns(pos - step) # doing the step
       pos = pos - step # updating position variable
       sleep(0.2)
      else:
        pwm.duty_ns(deg000) #allow lowest position, if full step was not possible
        sleep(0.2)

  if button_r.value() == 0:
      if pos <= (deg180 - step):
       pwm.duty_ns(pos + step)
       pos = pos + step
       sleep(0.2)
      else:
        pwm.duty_ns(deg180) #allow max position
        sleep(0.2)