mbed: led pwm for video record testing
mbed: led pwm for video record testing

rolling shutter and canon's video shutter speed are strange

in the 1/4000 to 1/1000 range, the cam behaves as expected with a
rolling shutter effect; with a longer exposure, it looks kind of like
several frames would be taken one after another.

sooda/thesis,sooda/thesis,sooda/thesis,sooda/thesis