hard_button
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— | hard_button [2013/08/13 12:13] (current) – created - external edit 127.0.0.1 | ||
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+ | At first, we wanted to flash the Easy Button, but after tearing it apart and pulling off epoxy, we realized it was a one time write chip. So now we're creating a drop-in replacement board. | ||
+ | |||
+ | * SoC Bluetooth | ||
+ | * ADC | ||
+ | * OpAmp | ||
+ | * Flash controller | ||
+ | * Lots of I/O | ||
+ | * CC2540 Bluetooth low energy system-on-chip | ||
+ | * One chip integrated device - controller, host and application on one device | ||
+ | * Includes peripherals to interface with analog and digital sensors | ||
+ | * In-system reprogrammable flash memory | ||
+ | * Accurate RSSI function | ||
+ | * Full-speed USB 2.0 interface | ||
+ | * Integrated AES-128 encryption engine | ||
+ | * 40-pin 6x6x0.85mm QFN package | ||
+ | |||
+ | [[http:// | ||
+ | |||
+ | So here is what the button will do: | ||
+ | |||
+ | * Drop in replacement for existing board, no hardware modification necessary | ||
+ | * Plays back arbitrary audio | ||
+ | * LED to indicate status | ||
+ | * Multiple tap control | ||
+ | * Bluetooth controllable - serial + sound | ||
+ | * Possible record via onboard mic | ||
+ | * All I/O broken out to headers for use in other projects | ||
+ | |||
+ | Here are the Eagle Files so far, only the schematics are close to being usable: | ||
+ | |||
+ | [[http:// | ||
+ | |||
+ | [[http:// | ||
+ | |||
+ | * 60mm circle | ||
+ | * 1.7mm thick | ||
+ | * 5.7mm holes x 4 | ||
+ | * 2.4mm screw holes 2 x | ||
+ | * 14mm dig from screw hole edge to large hole edge | ||
+ | * 13mm between holes from edge | ||
+ | * sw 4.7mm high | ||
hard_button.txt · Last modified: 2013/08/13 12:13 by 127.0.0.1