Light control is when all the lights are under control at your hand. Aurdino is perfect for controlling your lights while your in the comfort of your couch, in order to make this work you will need a PC to program the Aurdino IDE, and RPI. Doing this is simple, first you install dependencies, next activate Aurdino IDE, and then program Alexa. This relates to engineering because you need to program the Alexa in order to make it control the lights so you don’t have to.
Here is the link if you want to read more.
https://create.arduino.cc/projecthub/rajesh3/light-control-using-arduino-and-amazon-alexa-4de72