Make a wiring diagram of pneumatics

[FlyingLotus1983]

Need to make a wiring diagram of the pneumatics.

All the relevant design information for the pneumatics have been recorded here (please add stuff to it if there's anything I missed):

https://github.com/TinWhiskers/fpd-design/wiki/Pneumatics

NOTE: This issue blocks sourcing parts, BOM cost estimation, and determining how much area inside the machine is needed for pneumatics.

Wiring diagram should contain, at a minimum:

• Diaphragm Pump
• PnP solenoid

  • of ways (2-way, 3-way, etc)

  • Vacuum / pressure rating
  • Coil Voltage
  • Current rating
  • Duty cycle spec
• Paste solenoid

  • of ways (2-way, 3-way, etc)

  • Vacuum / pressure rating
  • Coil Voltage
  • Current rating
  • Duty cycle spec
• Driver circuitry for both solenoids
  • Simple MOSFET H-bridge?
  • Catch diodes?
  • Interface to microcontroller (GPIO on/off? Something more complicated?)

[vonnieda]

I can't think of a way to do this without using 4 solenoids if we need to be able to dump pressure and vacuum.

[vonnieda]

If we end up using the tiny two point one we probably need to test it for sticking, same as Dan tested the other three port ones.