4 x 9W Light Bulb Smart Home System w/Bluetooth Pushbutton Remote, ESP32 & 5V Relay Modules

This video tutorial provides an update on the ESP32 Smart Home 4 Light Bulbs System. It introduces a new controller using an ESP32 device that pairs with the system via classic Bluetooth, eliminating the need for an Android phone. The tutorial includes Fritzing diagrams for both the light bulb system and the remote control. The setup involves a breadboard power supply and a flip-flop mechanism that allows a single button to toggle each light bulb on and off. The video also discusses the removal of a problematic fifth button and offers code for download. Viewers are encouraged to ask questions if they encounter issues.

What are the advantages of using a single button for turning the light bulbs on and off?

What issues did the teacher encounter with the fifth button for the light bulbs?