Hardware issue?

Arduino, Seeeduino Serials and mutants. Share your problems and experence on arduino compatible board such as seeeduino/stalker, etc.

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bsidhipo
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Hardware issue?

Post by bsidhipo » Sat Dec 04, 2010 4:01 am

Referring to the Rainbowduino with official seeedstudio firmware (as well as the 3.0h firmware).

In the green channel only, the LED directly below (row y + 1) the one being lit is always on faintly. In a dark room, you can see this effect more. You should be able to replicate this by loading a slightly modified firmware that fills the front buffer with nothing but one dot at (0,0) with RGB = 0F0. The LED at (0,1) should be glowing faintly.

Is this a hardware issue? Or ... does it happen in all channels but our eyes are just more sensitive to the green in particular?

I modified the firmware to do nothing but light first two columns (to reduce the PWM-related issues to minimum) and I'm still seeing this faint glow.

Ideas? Suggestions?

RazorConcepts
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Re: Hardware issue?

Post by RazorConcepts » Sat Dec 04, 2010 4:42 am

D'oh, just posted in the other thread just about this problem. I have the exact same problem! The code is so great, only if that issue wasn't there.

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