In this video I show and explain how to easily get and use several Arduino UNO microcontrollers Atmel 328P-PU without the need to use the Arduino UNO board, except for uploading the sketch.
It became kinda obsolete, after I found out about the even cheaper Arduino Pro Minis. But anyway, it was a nice project and gave me some more understanding of the Arduino hardware.
pictures of the breadboard and parts: