###################################################
#
# This code is for the pi pico w to control a servo motor. 
# The servo motor is connected to pin 0 on the pi. 
# The code uses a PWM signal to control the servo motor,
# and makes the motor move alternately clockwise and anticlockwise. 
#
# Author: Becky Tyler (2461535)
# Date: 17 March 2024
#
# Note: CoPilot AI was used to predict next words to save time typing
#      full words with eye gaze
#
###################################################

# Import the necessary libraries
import machine
from time import sleep
from machine import Pin, PWM

print("test")

# Create a PWM object from the Pin 0
servo = PWM(Pin(0))

# Set the frequency of the PWM signal to 50Hz
servo.freq(50)

Up_Button  = machine.Pin(22, machine.Pin.IN, machine.Pin.PULL_DOWN)
Down_Button  = machine.Pin(26, machine.Pin.IN, machine.Pin.PULL_DOWN)

# Create an infinite loop
while True:

    print(Up_Button.value())

    if Up_Button.value() == 1:
        # Move the servo motor clockwise
        for i in range(1000, 9000, 50):
            # Set the duty cycle of the PWM signal to move the servo motor
            servo.duty_u16(i)
            # Wait for a short time
            sleep(0.01)

    else if Down_Button.value() == 1:
        # Move the servo motor anticlockwise
        for i in range(9000, 1000, -90):
            # Set the duty cycle of the PWM signal to move the servo motor
            servo.duty_u16(i)
            # Wait for a short time
            sleep(0.01)