crwdns2933803:06crwdne2933803:0
crwdns2933797:0Scott Havardcrwdnd2933797:0crwdne2933797:0
crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Scott Havard
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- crwdns2933771:0crwdne2933771:0
- crwdns2933801:0crwdne2933801:0
crwdns2933807:0crwdne2933807:0
| - | [* black] We find the source of our board removal strife: A layer of super sticky adhesive, keeping the capacitative board in contact with the plastic. |
|---|---|
| - | [* black] The |
| + | [* black] We find the source of our board removal strife: A layer of super sticky adhesive, keeping the capacitative board in contact with the plastic upper case. |
| + | [* black] The grid reminiscent of graph paper is actually a grid of capacitors. When a human finger is smeared across the ~~page~~ grid, the coupled capacitance between capacitors increases. This change occurs with the introduction of a third “human” capacitor. The onboard controller reads both the presence and location of the change. |
| [* black] On the backside we find some chips: | |
| [* red] Atmel [http://www.atmel.com/Images/Atmel-42181-SAM-D21_Datasheet.pdf|ATSAMD21|new_window=true] 32-bit ARM [https://www.arm.com/products/processors/cortex-m/cortex-m0plus.php|Cortex M0+|new_window=true] microcontroller | |
| [* orange] Two NXP [http://www.nxp.com/products/power-management/lighting-driver-and-controller-ics/i2c-led-display-control/24-channel-fm-plus-ic-bus-57-ma-20-v-constant-current-led-driver:PCA9956BTW|PCA9956BTW|new_window=true] LED drivers |