RLN Electro board is my very old project. I tried to create developer board, compatible with Arduino software stack.
So this board contain A LOT of different Arduino shields and have next functionality
* Arduino Mega 1280 (or you can solder 2560);
* Ethernet shield
* Text LCD 4x16
* Analog variable resistors;
* Seven-segment 4-digit indicator;
* Buttons;
* Relays;
* Current Sensor
* RS232 interface
* USB interface


Two versions with(2012SE) and without(2012FE) Ethetnet

All project files can be founded in GitHub repository


PS: Published the project just not to lost it