Let me introduce another simple microcontroller-based do-it-yourself circuit that detects motion and excites a light source in a flash. The “snooper” here is an ordinary passive infrared (PIR) motion ...

You can use mmWave sensors to monitor presence rather than simply detecting motion.

Now we can stepped into the light with our favorite microcontroller Arduino! Since a vast number of analog/digital ambient light sensors/light sensor modules are now available at reasonable price, ...

Another piece of technology that is prevalent in many smart home devices is Matter. Having devices with Matter protocol allows you to keep a hub from one manufacturer and connect to another device -- ...