~$150 + very hackable
Main page down, here's a link to google cache
http://64.233.167.104/search?q=cache:i5E6gWiz930J:www.chumby.com/+&hl=en&gl=us&ct=clnk&cd=1
Gizmodo Article
http://gizmodo.com/gadgets/gadgets/first-look-at-chumby-the-huggable-hackable-information-device-196975.php
Tech Crunch Article
http://www.techcrunch.com/2006/08/27/chumby-devices-handed-out-at-foo/
Sign-up via the top link, click Developers.
Here's an excerpt:
Alpha Prototype
Features
The Alpha chumby hardware sports the following key features:
* 266 MHz ARM controller (the MX21 by Freescale)
* 32 MB SDRAM running at 133 MHz bus speed
* 64 MB NAND FLASH ROM
* 320x240 3.5" TFT LCD with PWM-controlled LED backlighting
* Stereo 2W speakers
* Headphone output
* Ambient light sensor
* Bend sensor (to pick up when you squeeze the chumby)
* Two USB 2.0 ports, one on the main board and one on the outerware electronics
* WiFi connectivity via a USB dongle plugged into the main board
* Circuitry to detect the presence of wall adapter power and auto-fallback to backup battery power
* Switching power supply network that can eat between 6V and 14V
* Available microphone input on the chumbilical bus
* Available SPI bus on the chumbilical bus
* Serial debug port set to 115200 8N1
Schematics
Complete schematics for the chumby core unit can be found here.
A bill of materials for the chumby core unit can be found here.
Circuit Board
A layer by layer 1:1 scale print of the circuit board can be found here.
A larger than life assembly drawing (just the silk screen designators) can be found here.
Sensor Package
A sensor package was developed by chumby so that you can turn your ideas into reality without having to go through the labor of schematic capture, board design, and parts selection. The sensor package has the following features:
* Support for the ADXL3XX series of pin-compatible accelerometers (3-axis and 2-axis versions available)
* Up to 6 available 12-bit analog inputs
* Limited support for servo motor drivers (1-high resolution driver, and 3 low-res drivers)
* 8x 3.3V-compatible digital inputs
* 8x 5.0V-swing digital outputs
* 8x 1-A DC motor driver channels (can be configured for high or low side driving to make an H-bridge configuration), with support for motor voltages between 5.5V and 24.5V
* A small prototyping area for you to add on quick hacks
Hardware
The schematics for the sensor package can be found here.
The board layout for the sensor package can be found here.
The BOM for the sensor package can be found here.
