There are several different levels of microcontrollers and microcontroller systems. Some are very small, chip-size devices to which you have to connect your own electronics. Others are larger, composed of several components and ports for input output, ready to plug right into other devices. Here is a short introduction.

The YBox2 is a DIY networked set-top box. Connect it to your TV and you can design customized content to be delivered direct from the Internet.

A "bigger brother" of the smaller Soundgin - an interesting SX48 micro-controller midi music maker...

Do you need an oscilloscope? Are you satisfied with small display and low frequencies? Try to build your own!