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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?
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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.
 
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