How to control the power switch with a mobile phone?

For ordinary lamps, it is impossible to control them only by using mobile phones.

For controlling the switch or brightness of the light, the control process can be divided into three parts: input device (mobile phone)-controller-output device (light).

Mobile phone remote control actually refers to the "input device", that is, the visual control interface, which is easy to realize.

The term "output device" refers to a lamp.

So the key equipment "controller" is needed here. According to different functions, the controller can be simple or complex.

From the mobile phone to the controller, there is still the problem of signal transmission. Mobile phones can transmit signals through WIFI or infrared rays.

Therefore, this requires the controller to have one of the above two wireless transmission modes.

From the practical application, such as smart home, you can directly control the switch and brightness of the light with your mobile phone or tablet computer. WIFI wireless transmission is used here. Of course, there is also a controller, which is installed in a hidden way.