"This kit includes a pre-programmed PIC (Programmable Integrated Circuit) 16C55 microcontroller, a circuit board, several electronic components and a tri-color 90 LED matrix display that is controlled by the microcontroller to perform several eye-catchingtri-color (red, green, yellow) routines. The students assemble the kit and control its operation by the use of six DIP switches and a reset switch. This kit includes instruction sheets to guide the student through the building and use of this project and also an introduction to microcontrollers, embedded systems and the operation of this project. Project operates on a 9V battery (not included). Size of board: 6 1/2"" x 2 1/4"". Skill Level 3. "