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Revision 3.1 - updates

A project log for K.I.T.T. - KNIGHT RIDER badge/brooch

whowhow. whowhow. - formally known as purple rider

davedarkodavedarko 08/29/2018 at 20:394 Comments

I'm nearly through my stock of Rev3 boards and close to another order. There was an issue with the LEDs glowing a bit when the battery was fresh. Two red LEDs in series on a fresh batterie just wasn't enough of a voltage drop. So I sat down and added 4 more 0805 resistors and rewired it completely. Now it should definitely not glow dimly in a "supposed to be off" state. 

old version
new version

The SAO connector was moved to the bottom center, but I was too lazy to redo the OSHpark upload - png download cycle again.

Discussions

de∫hipu wrote 08/30/2018 at 08:00 point

Love how you squeezed the programmer footprint onto the mirror outline. Have you considered using resistor arrays to lower the parts count?

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davedarko wrote 08/30/2018 at 09:08 point

yes, but I thought those are a bit trickier to solder and I wanted to try out first if 8x 0805 fits at all. I kinda made it work with 2 vias to add the header.

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Stephen Ludgate wrote 08/30/2018 at 06:47 point

I would certainly add in some footprint silkscreen for those resistors, looks confusing at first glance if they are vertical, horizontal etc? Looks great apart from that!

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davedarko wrote 08/30/2018 at 07:35 point

done, thanks :)

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