At 10:16 AM 4/27/2005 -0300, you wrote:
>Hi,
>         I have the following problem. I have developed a dog feeder that has
>a PIC inside. A photo can be seen at
>http://www.janso.com.ar/Picture%20004.jpg - Top of the feeder, controller
>only
>http://www.janso.com.ar/Picture%20010.jpg - Top view, full feeder
>http://www.janso.com.ar/P000982.JPG - Full at the shop (400K image)
>
>         As you can see the case is made with a process called rotomoulding.
>I don't know the specifics of the process and materials used but I can tell
>you for sure that the cases come to the assembly area with lots of static
>(i.e.. Plastics "stick" to them...)
>
>         Now, the system has a RTC on it and a PIC (16C63B) the problem I'm
>having is that some RTCs (DS1307) are being damaged and I think is due to
>static....
>
>         What do you think I should do?

How about an anti-static coating or wash? There are such chemicals sold
by electronics distributors such as Future, but you might want to try
having them washed in a liquid fabric softener (inexpensively available
from the supermarket).

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com




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