Some progress

A project log for NTSC/PAL Video Display Shield

An Arduino NTSC/PAL video display shield with integrated framebuffer and composite video output.

magicwolfiMagicWolfi 10/01/2017 at 23:200 Comments

I am playing with the hardware to determine the perfect setup for rev 2 of the board. Using this circuit as output driver works best and gives the nicest range from dark to bright color.

And this is the result:

So it will be probably 2x 22R with a protection device between on the next board. The output video opamp is still not working, difficult to debug with my scope still in the box.