I’ve found an interesting doorbell system.
The company is from Germany and also does everything made in Germany.
Here’s the link:
It is currently in the financing phase on Kickstarter.com and is availiable for 99€ (-45% off).
Here’s the link to the campaign:
The system works without WiFi and doesn’t need batteries, pretty cool.
I really like the Voting-Mode.
Today they released a developers update. It seems that it will be compatible with Arduino.
I am currently thinking about backing it.