RAMPS with solenoid for air pressure extrusion (no replies)

Hello,

I'd like to open and close a solenoid valve using the RAMPS controller. The solenoid valve will act as a second extruder. Is there a way for RAMPS to open and close the solenoid valve easily (without heavily modifying the code or adding extra electronics)? The valve just needs 12V (or 24V depending on which solenoid valve I use) whenever extrusion is necessary.

Thanks,
Jessica