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To control fluid flow in our final device we constructed pneumatic controlled water valves. We use electric powered air valves to control these so-called quake valves and build a circuit to control the air valves with a microcontroller. This enables us to precisely move fluids on our final device via a software interface. We constructed macroscopic quake valves with 3D printed negatives out of PDMS via soft lithography. The valves can be scaled down and are require now special equipment for their manufacture. A detailed protocol for manufacturing macroscopic fluidic chips with 3D Printed negatives can be found here at the subitem "Soft lithography"
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