import machine
from machine import Pin, SoftI2C
from oled import I2C
import time

i2c = SoftI2C(scl=Pin(22), sda=Pin(21))
oled = I2C(128, 64, i2c)

# Buttons (use safe pins)
left = Pin(18, Pin.IN, Pin.PULL_UP)
right = Pin(19, Pin.IN, Pin.PULL_UP)

counter = 0

while True:
    # Button pressed = 0 (because PULL_UP)
    print(left.value(), right.value())
    if left.value() == 0:
        counter -= 1
        time.sleep(0.2)  # debounce

    if right.value() == 0:
        counter += 1
        time.sleep(0.2)  # debounce

    # Display
    oled.fill(0)
    oled.text("Counter:", 0, 0)
    oled.text(str(counter), 0, 2)
    oled.show()