Multiway Switching Four Light Bulbs Simultaneously Via Smartphone!

Thursday, May 26, 2016

If you remember the article I did on the single smart relay switch, there is now an expanded version of this board that is also based on the ESP​8266 WiFi module but packs even more extra cool features such as DC power connectivity, four relays with optoisolators, 3.3V regulator, USB​ to ​UART​ converter, NodeMCU header for connecting OLED displays, as well as an LED for GPIO LED test.
The functionality of the single-way relay switch was already great for controlling light bulbs remotely via an​ android phone. But now, with the four-way relay switch board you can connect even more sensors to the board and control four light bulbs at the same time.
The four relay board also features a 100-230V​ ​/5V AC​/​​D​​​​C power supply to connect the board directly to mains electricity, two headers for connecting digital sensors, as well as a USB​ to ​UART​ converter onboard for programming the ​ESP​8266 to your liking.
By the way, it's not just light-bulbs you can control. You'll also be able to create a WiFi smart power strip with four sockets and four two-way switches to control different appliances in parallel with each other, so you can turn on one appliance without having to turn on the others.

Similar Gadget Explained Reviews


Connect With Gadget Explained