In PAL or NTSC a whole video line is about 64us long.
An analogRead takes about 100us.
What are you hoping for?
(The negative going elements of the waveform are unlikely to irretrievably damage your Arduino, but I advise level-shifting your signal)
In PAL or NTSC a whole video line is about 64us long.
An analogRead takes about 100us.
What are you hoping for?
(The negative going elements of the waveform are unlikely to irretrievably damage your Arduino, but I advise level-shifting your signal)