The Homeduino is a self-construction project, with which the interested home automation can easily and inexpensively put together high-performance modules for automation in-house. In the meantime, hundreds of new people are using the advantages of Homeduino, as many functions that are usually not possible with homematic components can be realized relatively easily with the Homeduino. In addition to standard functions such as simple analog or digital input and output of signals, the Homeduino also supports complex modules such as ultrasonic distance sensors, Onewire temperature sensors, infrared remote control, pulse generators, RFID modules, displays and much more. And since the associated software is published here, Everyone can make adjustments relatively easily for their individual tasks. Corresponding suggestions for this are abundant on the Internet, because the basis of Homeduino is the well-known Arduino, which has a huge and very active developer community worldwide.