The Balloon Project

Balloon is an Open hardware development board intended for anyone to use in their projects. Balloon should be viewed as a versatile 'computer component'.

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Balloon 2.05 Spec

• Intel Strongarm SA1110, to 206MHz
• Rom, to 32Mbyte (really just trying to be boot rom)
• Ram, to 256MByte (64MByte without stacking)
• Nand-flash, to 2GByte, including 16-bit interface variants.
• SmartMedia card, to whatever the limit is today
• Codec (16bit, 44KHz, stereo mic in & stereo line out)
• 2W per channel power amp (class D, so efficient)
• 3 serial ports (2 at 12V, one at 5V)
• Reset (including pushbutton) and power control.
• LCD interface for STN & TFT panels (including bias voltage generation, to +-28V, 100mA, resistor settable, software adjustable)
• LEDs & inputs for debug.
• Unique ID chip / Silicon serial number
• USB two slave ports (to attach to a PC) and 2 host ports (to attach peripherals) - including power control.
• CompactFlash socket (not hot-plug)
• Power supply takes 6-42V - ideal for automotive / battery / lab use OR...
• Single 5V supply (local supply voltages derived on-board)
• Software control of subsytem power supplies
• JTAG programmable for both Boot ROM and PLD
• Real Time Clock with connector for battery
• Whole address / data / control bus buffered and sent to docking connector on back of board.
• 103 x 56mm (credit card, extended by 1cm on long side)
• Weights 20-30 grams in typical configurations

http://balloonboard.org/