from switchLEDmatrixPIO import Matrix8x4x8

def main():
    mymatrix = Matrix8x4x8(freq=2000, out_base=0, in_base=8, sideset_base=18)
    mymatrix.active(1)

    while True:
        if mymatrix.changed:
            mymatrix.updateLEDs(mymatrix.keystate)          
            print("Current keys: {}\tAdded keys: {}\tRemoved keys: {}".format(mymatrix.current_keys, mymatrix.added_keys, mymatrix.removed_keys))
    
if __name__ == "__main__":
        main()