hard_button
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. This board is based on the CC2540 by TI. It does many cool things including:
- 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
|CC2540 - 5 free samples!
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:
- 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