[MakeLV] LED Sign

[Willy Weik]

What's wrong with the sign and arduino?

 -Will W

On Fri, Dec 14, 2012 at 3:46 PM, Will <staticphantom at gmail.com> wrote:

> Could but highly doubtful. Tron was able to get the board working
> discretely which would not have fixed the problem. What we need is a buffer
> or comparator. I will bring one down to the space at noon.
>
> -Will C
> On Dec 14, 2012 8:57 AM, "Josiah Ritchie" <josiah at josiahritchie.com>
> wrote:
>
>> I thought of something that may have been causing the problems we were
>> seeing on the sign last night. The Arduino and the sign were on entirely
>> different power sources. The Arduino was powered by my laptop and the sign
>> from the wall wart. Couldn't the two different grounds cause this?
>>
>> JSR/
>>
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