Bill of Materials

Major Components

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Miniature Diaphragm Pneumatic Pump

Miniature Electronic Pressure Regulator

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Miniature Pneumatic Solenoid Valve (x4)

One-Way Pneumatic Air Flow Control Valve*

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Pressure Sensor

  • Vendor link
  • Data sheet
  • Operation: pressure causes diaphragm to deflect, and deflection is measured by piezoresistor

Flow Sensor*

  • Vendor link
  • Data sheet
  • Principle of operation: small element heats air, and adjacent temperature sensors detect transfer of heat caused by air motion
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4-channel 5V Relay Module for Arduino

Arduino UNO

*Optional: can be omitted.

Base

These parts simply hold the above components in place. Use a laser cutter (make sure you are trained first!) to cut these pieces out of acrylic sheets. We use 3mm acrylic for all parts except the base board (6mm acrylic). Cut 2 copies of the base board. Download the .dxf files for cutting here.

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Pump on/off switch
Solenoid valves
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Arduino
Relays, power plugs, and toggle switches
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Pressure sensors
Base board (12"x12" / 300mmx300mm)