Femto is a programming environment designed to run on an ATmega based computing platform with VGA video output and a PS/2 keyboard interface. It consists of a simple text editor and an interpreter. With Femto it is possible to write and run small programs directly on the microcontroller. The interpreted language is called Femtoscript and is similar to Javascript. It was developed as part of this project. The interpreter is written in C and can be ported to other platforms with relatively small effort.