Building radio receivers from scratch is still a popular project since it can be done largely with off-the-shelf discrete components and a wire long enough for the bands that the radio will receive.
If you would like to learn the basics of electronics and soldering electronic components together to make more complicated projects. A good starting point is the Arduino Make Your UNO Kit, providing ...
A new Arduino Scratch programming extension has been released this week for the Arduino platform as an experimental option, that communicates with the Firmata firmware on an Arduino boards. A new ...