I’m working on a clock project and want to make a wooden look of my device. The idea is to hide the display behind the wooden veneer. Please see an example here - https://a.co/d/eE8ThQV
I got my Qwiic Alphanumeric Display and it works perfectly. Thanks a lot to SparkFun for the great product and documentation.
The only issue I have - is the display brightness when I use it under a veneer. It looks dull. So my question - is it possible to increase the brightness somehow?
I’ve already tried to connect it to a 5v power source, but it didn’t help.
As far as I know, the display’s brightness is determined by the current flowing through its segments. By adjusting the current, I can control the brightness. So is it possible in this case?
100% duty cycle would be full brightness. More voltage would also increase brightness but the display is already running at 5 volts and you’re almost at the maximum allowed voltage.
The only thing you can do would be use a different color display that appears brighter and/or make your veneer thinner. Some careful sanding followed by a light coat of polyurethane finish might be enough to get the brightness you’re after. You will need to do some experiments to see if that works.