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206 Masterpiece 4 • PneumADDic II

Pump Step 6

The Digital Pressure Sensor

The Digital Pressure Sensor
sub-assembly consists of a
medium piston, rubber
bands, a touch sensor and
a Potentiometer Brick
sub-assembly.

PneumADDic II needs to be able to recognize when to stop running the compressor, so
that it does not over-pressurize the pneumatic adding circuit. Over pressurization will
lead to self-destruction. If the compressor generates too much pressure, the friction that