Template:FAQ/Questions/external interfaces does gumstix

What external interfaces does gumstix support?
The gumstix motherboards and their related expansion boards have a very broad range of supported interfaces,

Both gumstix motherboards provide a 60-pin hirose connector that gives access to 42 GPIO lines (3.3V logic), I2C, USB, and of course, power &amp; ground. Most of the GPIO lines can be used in a form of alternate function. There are 3 UART ports, a NSSP, 2-PWM lines, AC97 (audio) controller, and LCD controller. There is also an MMC card slot and an optional bluetooth module. Testpoints on the motherboard provide access to JTAG.

for further details on the expansion capabilities of the gumstix products, Go to gumstix expansion boards.