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Changes to Step #9

Edit by Scott Havard

Edit approved by Scott Havard

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[* black] The joystick board appears the be the brains of this operation, it's packed solid with silicon and switches.
[* black] And two big ol' springs for the XY/AB buttons—probably so they're not too stiff, or too soft, but juuuust right.
+ [* icon_note] ***Teardown Update:*** After some further research and a burn from the soldering iron, we learned that these springs are meant to close the capacitive sensing circuit used in the buttons.
[* black] Chips! Some of these guys look oddly [guide|52578|familiar|stepid=117511|new_window=true] ...
[* red] Nordic Semiconductor [https://www.nordicsemi.com/eng/Products/Bluetooth-Smart-Bluetooth-low-energy/nRF51822|nRF51822|new_window=true] Bluetooth Smart and 2.4 GHz proprietary SoC
[* orange] Analog Devices [http://www.analog.com/en/products/analog-to-digital-converters/integrated-special-purpose-converters/capacitive-to-digital-and-touch-screen-controllers/ad7147.html|AD7147|new_window=true] single-electrode capacitance sensors controller
[* yellow] Invensense [https://www.invensense.com/products/motion-tracking/6-axis/mpu-6500/|MP651|new_window=true] 6-axis combo gyroscope and accelerometer