joystick.py

import time

from machine import ADC, Pin

HIGH = 35000
LOW = 30000


def is_still(val):
    return val > LOW and val < HIGH


def increase(val):
    return val > HIGH


def decrease(val):
    return val < LOW


joystick_y = ADC(Pin(26))
joystick_x = ADC(Pin(27))

STOP = 1
STRAIGHT_FORWARD = 2
RIGHT_FORWARD = 3
LEFT_FORWARD = 4
RIGHT_BACKWARD = 5
LEFT_BACKWARD = 6
STRAIGHT_BACKWARD = 7


while True:
    x_val = joystick_x.read_u16()
    y_val = joystick_y.read_u16()

    x_still = is_still(x_val)
    y_still = is_still(y_val)

    x_increase = increase(x_val)
    y_increase = increase(y_val)

    x_decrease = decrease(x_val)
    y_decrease = decrease(y_val)

    if x_still and y_still:
        print(STOP)

    if y_increase and x_still:
        print(STRAIGHT_FORWARD)

    if y_decrease and x_still:
        print(STRAIGHT_BACKWARD)

    if y_increase and x_increase:
        print(LEFT_FORWARD)

    if y_increase and x_decrease:
        print(RIGHT_FORWARD)

    if y_decrease and x_increase:
        print(LEFT_BACKWARD)

    if y_decrease and x_decrease:
        print(RIGHT_BACKWARD)

    time.sleep(0.1)