How to switch off the fez-disp expansion

Hi Guys,

do you know how to switch off the fez-disp expansion backlight? I tried with

SendCommand(0xAE);

but it seems not to be the right command!

Thank you for your help!

What fez-disp expansion are you talking about?

I think this http://www.ghielectronics.com/downloads/FEZ/Extension/FEZ-Disp_Exp.pdf

The back-light is connected to a jumper with power to make it switchable, you need to add a transistor to control it.

Hello,

Yes, it is!

Gus, are you referring to JP1?

Yes JP1