Old home installed electric sliding door, but the remote control can not be found when you want to use, and the distance is limited, you can not control a little further. 
If the door can be controlled with a cell phone, it's fine.
Open the electric door controller housing and find the wired terminal. It is operated in the order of "open door → stop → close door → stop", and is controlled by a jog switch (doorbell switch is a jog switch, press automatic reset). This is easier to handle, as long as you find a switch controlled by wifi you can control the opening and closing of the door.
BroadLink WiFi smart socket SP mini smart home APP remote control Bolian timer switch socket 48 yuan This BroadLink WiFi timer switch socket, can customize the time section, switch electrical appliances. You can also intelligently determine your status by going to home or away from home and execute the corresponding instructions. Say goodbye to the tedious setup of traditional timers. The phone can be set up with a single stroke. It has 32 sets of timing, even if the complex timing requirements, you can get one button. Intelligent memory system, precise to any time of the day / week at any time. Jingdong direct link to encyclopedia Found Bolian WiFi smart socket, socket work is still good, the most important thing is that it is fixed with screws, very easy to open. But I just switch function and don't have socket function.
Continue to open and find the welding leg of the control relay. Bolian uses a 5V relay.
I don't have a hand at hand. I've got a relay module to replace it. Red connects to the positive pole and white connects to the negative pole.
Relay module 5v_ Taobao search s.taobao.com direct link 
Relays are NO (normally open), NC (normally closed), and COM (common) tripods.
We need to use NO (normally open end) and COM (common end), and connect the wire-controlled end and common end of the main board of the electric door respectively. At this point, the hardware wiring part is all completed.
Install Bolink's Easy Control APP on your mobile phone. The steps for adding a device will not be introduced. Mainly talk about how to use the add scene to achieve the "jog button" operation, click on the upper right corner of the APP +, select Add scene. Add an execution command, select Smart Socket On - Interval 0.5 seconds - Smart Socket Off, then Save on it.
Bo Lian this switch is very cost-effective, good playability, combined with the scene to achieve some unexpected features. Well, as long as your mobile phone is online, even if you are abroad, you can easily operate the home door switch. 
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