ChowHUB is a device which can connect to an existing garage door, sliding gate and swing gate opener. ChowHUB can be controlled remotely via smartphones. ChowHUB allows multiple users to do operation, e.g. open and close the gate (or door) through Chow!APP. Installing a ChowCAM(Camera) is recommended to have a real-time image on the gate or garage door while operating the ChowHUB with Chow!APP.