2 microcontrollers (ATMEGA168 et ATMEGA88), one for the network interface, based on the tuxgraphics.com's project, the other for the king size display driving. 3 voltages (3.3, 5 and 12V) generated by an IEEE 802.3 at interface (LTC4265). The time is managed by a real time clock PCF8563. I'm agree to share the softs and schematics.