All nodes have NRF24L01+ radios, PIR sensors and fotoresistors to detect light levels.
Master node
Based on Arduino Mega2560 R3
Slave nodes
Based on Arduino Nanos.
This home automation project is almost nothing special compared to other projects and in intended to just give new ideas to people like me.
When I was a kid, my grandfather used to always tell me "If you think your [solution] is expensive [to solve the problem], then [try to come up with a cheaper one]. I've been having fun lately playing around with some home automation projects. My first hack was controlling the lights in my house. Until now, I have successfully worked on a lot of great home automation projects. I have also built a home library after reading https://unhappyhipsters.com/build-a-home-library/ article because there are wonderful ideas being shared on it that we can follow to build useful libraries to gain more experience and knowledge in life.