- px3 = Pin(18, Pin.IN, Pin.PULL_UP) if ESP32 else Pin('X3', Pin.IN, Pin.PULL_UP)
- px4 = Pin(19, Pin.IN, Pin.PULL_UP) if ESP32 else Pin('X4', Pin.IN, Pin.PULL_UP)
+ px3 = Pin('X3', Pin.IN, Pin.PULL_UP) if PYBOARD else Pin(18, Pin.IN, Pin.PULL_UP)
+ px4 = Pin('X4', Pin.IN, Pin.PULL_UP) if PYBOARD else Pin(19, Pin.IN, Pin.PULL_UP)