634 USB with Backlight

doWhile

New member
I have a VB program that works perfect with the 634 USB model that does not have a backlight. I was wondering if it would work with the 634 backlight model. I guess my question is what controls the backlight? Is it current sent through the USB? Or is it code in conjunction with current from the USB?
Looking for additional LCD resources? Check out our LCD blog for the latest developments in LCD technology.
 

CF Tech

Administrator
The power for the backlight comes from the USB.

By default, the backlight is on. You can control the backlight brightness by software command.
 
Top