b = [] # Rbutton instances
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)
b = [] # Rbutton instances
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)