one, individual motor versus all at once...

def add_motors_route(state, v1, v2, v3, v4):
    @app.route("/" + state, endpoint=state)
    def handler():
        set_motors(v1, v2, v3, v4)
        return homepage(title=state)

add_motors_route('0',          0,  1,  2,  3)
add_motors_route('20',        20, 21, 22, 23)
add_motors_route('30',        30, 31, 32, 33)
add_motors_route('40',        40, 41, 42, 43)
add_motors_route('50',        50, 51, 52, 53)
add_motors_route('60',        60, 61, 62, 63)
add_motors_route('70',        70, 71, 72, 73)
add_motors_route('80',        80, 81, 82, 83)
add_motors_route('90',        90, 91, 92, 93)

add_motors_route('-1',        -4,   -5,  -6,   -7)
add_motors_route('-25',       -25,  -26, -27, -28)
add_motors_route('-35',       -35,  -36, -37, -38)
add_motors_route('-45',       -45,  -46, -47, -48)
add_motors_route('-55',       -55,  -56, -57, -58)
add_motors_route('-65',       -65,  -66, -67, -68)
add_motors_route('-75',       -75,  -76, -77, -78)
add_motors_route('-85',       -85,  -86, -87, -88)
add_motors_route('-95',       -100, -97, -98, -99)