In our projects and experiments we will manage electric power. It is dangerous so please, in case you do not have experience, we suggest you to ask support from somebody with such skills. Even if you are experienced, remember always to shut down the main switch, to close electric power in your house when working with these stuff, and be sure the electric circuit of your Home is protected with a residual-current circuit breaker. Such automatic switch protects you in case you forgot to shut down the electric power.
For the ones living in Europe, we remind you home electric circuits are quite for sure certified by a professional electrician. If you change the circuit in you home, your certification will be no more valid. Just be sure you are aware.
All examples in this site are provided as is, we are not responsible for any problem or damage created in case you will try to implement our suggestions or projects.