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Final Hardware Revision

A project log for Zamek: The Offline Pocket Password Manager

Creating and retrieving passwords for all your accounts has never been this easy and convenient!

jarek319 09/09/2016 at 02:358 Comments

After some back and forths with designing the case, I realized that it would be much easier to produce the device if I re-engineered some of the sticking points around the previous design. So I cleaned up the entire back of the circuit board so that it can sit flush up against the housing. I also added a trackball for faster and more accurate navigation.

Discussions

jaromir.sukuba wrote 09/09/2016 at 11:23 point

Very neat PCB design. 

Perhaps I overlooked something, but I can't find the part number of trackball you used. It's really tiny.

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jarek319 wrote 09/09/2016 at 13:10 point

Thanks! I prototyped using this https://www.sparkfun.com/products/9308 and bought a bag of like twenty of them on ebay for ten bucks or something

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Radomir Dopieralski wrote 09/09/2016 at 08:35 point

I that a lipo under the display?

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davedarko wrote 09/09/2016 at 11:10 point

broken_display == blown_lipo :) I don't see any other chance for it to be powered.

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jarek319 wrote 09/09/2016 at 11:15 point

yup, the proper case will have recesses to hold and secure the lipo and screen. it will all be on the inside of a sealed transparent case, so youd have to hammer pretty hard to break it :

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davedarko wrote 09/09/2016 at 11:17 point

sometimes LiPos just bloat, so when this bloats, it might crack the display. Al least that was my thought behind that sentence. Cool project though :)

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zakqwy wrote 09/09/2016 at 03:44 point

TagConnect! How do you like it? I haven't yet taken the plunge, but it seems like a great solution for Atmel ISP and others.

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jarek319 wrote 09/09/2016 at 04:09 point

It's not bad for when you really need it, but I wouldnt replace a good ol' 3x2 shrouded header if I have the board real estate.

Though if you're doing volume production, it does make a convenient pogopin test point array

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