Samsung also announced updates to its Apple Watch app, a new dark mode for the SmartThings app on iOS, and more features coming to SmartThings Find, its location-tracking service. One of the barriers ...

For example, using Alexa Routines, you could set your smart thermostat to automatically lower the temperature to your preferred sleeping heat when you turn off your bedroom lights for the night ...

Use Arduino to handle sensor input and relay control. Pi runs a Python Flask server with a simple UI to toggle GPIO pins via serial commands sent to the Arduino. Use cron jobs on Linux to schedule ...