> I doubt very much that Sage has any mechanism for flashing LEDs through the GPIO pins of the Pi You use the RPi.GPIO module, as follows: import RPi.GPIO

> I doubt very much that Sage has any mechanism for flashing LEDs through the GPIO pins of the Pi You use the RPi.GPIO module, as follows: import RPi.GPIO as GPIO There's some more information here: https://code.google.com/p/raspberry-gpio-python/wiki/BasicUsage https://code.google.com/p/raspberry-gpio-python/wiki/BasicUs...