From GumstixWiki

tech basics needed for overo+summit

Console image

hack for WiFi - take off avahi packages, lock to essid, startup script at the end of boot sequence!

serial port - taken from summit pins

pin 1: gnd

pin2: 3.3V

(pin 16: 1.8V)

pin 9: RX

pin 10: TX

this is /dev/ttyS0

level converter max218 operates at 1.8-4.25V so it could use pin 2 (3.3V).

second serial port just in case is UART 3 (/dev/ttyS2): pins 21 and 22

Packages for ssh, cron and python need to be added to the console image (done)

worth trying for power (not sure if they work!):

screen blank: 216 mA

echo 3 > /sys/class/graphics/fb0/blank

sleep-while-idle: 75 mA - this same power state as suspend, but happens in idle

  # echo 1 > /sys/power/sleep_while_idle