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7-Segment Backpack min brightness still very bright
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7-Segment Backpack min brightness still very bright

by dlchambers on Sat Dec 01, 2012 3:07 pm

To start off, I'll say that the backpack is a great product and it couldn't be easier to use.
That said :wink:...
The backpack allows you to set the display's brightness (eg. Arduino lib's setBrightness() fcn) from 0 to 0x0f.
Unfortunately, the minimum setting (0) is still quite bright - excessively bright in a dark room.
I was hoping to use it on my bedside table, like an alarm clock, but it's way too bright for that.
Given that this is probably just a PWM thing, why not allow the user to set the duty cycle between 0% and 100% ?
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Re: 7-Segment Backpack min brightness still very bright

by adafruit on Sat Dec 01, 2012 10:10 pm

Unfortunately, we're stuck with whats in the hard-coded chip software. The chip itself doesn't support anything dimmer than 1/16th brightness. perhaps you could cover it with a neutral filter to dim it more?

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Please be positive and constructive with your questions and comments.