M2.5 screws and brass M2.5 inserts (for Adafruit powerboost, can get away with just using double sided tape if you like)
The switch is wired to the Powerboost to shut off the power by pulling enable down to ground, details of the pinouts can be found here. It is picks up its power for illumination from a VCC pin on the OpenBCI board. There is a 220ohm resister inline since the LED is only 2v2.
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