OpenDrop is a development platform for digital microfluidics. It is intended for new developments and research experiments. We all know that during experimentation things can break. We planed for it and made the OpenDrop version 4 driver board easily replaceable. Just unscrew the broken board and replace it with a new one. The driver board comprises two HV507PG driver chips for all 128 electrode channels as well as a new DIMM connector. Connection to the main board by 24 pin, 0.5 mm pitch FFC zero insertion force flat cable and connector.
The driver board can also be used to add extra components such as sensors, actuators, temperature regulators or electromagnets. 3.3V power as well as two digital lines are accessible on the board for experiments.