We started with some simple experiments with Electrowetting on Printed Circuit Board. The electrodes are powered through FET transistors that are controled through an Arduino UNO.
Simple prototype schematic
Layout and Schematics of the first prototype. HV4 connected to hight voltage power supply (235 VDC).
Gates connected to arduino digital pins. G7 is common ground.
Download Proto Design Files (eagle and pdf)
Videos of first test results
Urs doing high-voltage experiments at Biofilia.