The main FlowIO module has up to five pneumatic ports, with each port capable of inflation, vacuum, release to atmospheric pressure, pressure hold, pressure sense, and flow-rate variability actions. An Adafruit Feather Sense development board with an nRF52840 system on a chip provides processing, GPIO pins, and a number of sensors (inertial measurement unit, altimeter, light sensor).
A pump module comes in three different sizes, depending on the pressure requirements of the project it supports. Each version comes with two pumps, a custom driver board, battery, and a 3D printed enclosure — only the pumps and batteries differ between versions. This module connects to the main module with a four-pin magnetic connector and a pair of silicone tubes….
