The main processing unit and controlling part of the mobile device is the
Gumstix[29]. The Gumstix is a single-board computer. The 'gumstix connex 400xm-bt'
model was chosen for this device. It has a 400 MHz Intel XScale PXA255 processor
which is a 32 bit RISC architecture based on the ARM design, and has kind power
consumption requirements. Gumstix has 64 Mb of RAM, 16 Mb of flash memory and a
Bluetooth interface.
The dimensions of the gumstix board are 80x20x6mm which makes the gumstix a very
attractive platform in terms of portability for a mobile device.
Figure 3.3 shows the Gumstix board together with
its Bluetooth module.
Figure 3.3:
Gumstix board used in Snout platform.
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Jenson Taylor
2008-01-25