OLED Display and Accelerometer Pocket Watch (WiP)

A friend had a broken pocket watch, gutted it, gave the case to me. I measured it, and did a rough draft of a board with a densitron display, accelerometer, AVR and LED.

This is just a first crack at it. I haven't hooked up any of the power circuitry to the battery and haven't figured a lot of other things out, but I'll post things as they come.

Display: http://www.newark.com/jsp/search/prod...

Accelerometer: http://www.digikey.com/scripts/DkSear...

Album: https://plus.google.com/u/0/photos/11...

• Category

  Science & Technology

[mogorman1984]

I am working on something similar. have you run the board off the 3v coincell? I ran into problems with the oled display i was playing that needed 3.3v and the coincell couldn't source power for more than a few seconds before browning out. You wouldn't mind posting a schematic?

[CNLohr]

I xposted this, but noticed you said it browned out. I was using a pretty hefty coin cell... Maybe that was what got it to work, it was a VP3032 cell.

[CNLohr]

Correction: VL3032

[Indyaner]

I wished I would own one of these things, to play with it and give it some kind of purpose, because the Industrial Design alone (AVR in a pocket watch case) in already a thing that opens some perspective. Even I use Arduino Mini Pro in every of my project I still feel very bloated when It comes to integrated Designs like in shoes and clothes. Short: You did a good Job and I'm jealous for what you've archived :D

[CNLohr]

Until about two years ago, I used breadboards, breakout boards, etc. I was afraid that too many parts would come out that I couldn't use. Then, I found an old (from like the 1990's) radio shack make-your-own circuit board kit. I opened it up, held down a 20-SOIC part, drew some lines using the mysteriously still working sharpie, etched it... and voila!

Ever since I gave us kits, arduinos, breakout boards, etc I've been able to develop faster, smarter, and surprisingly, even cheaper!

[Indyaner]

That sounds interesting. What kind of kit do you use? Maybe I can try it out aswell.

[CNLohr]

Actually... that's the thing... I don't use kits. I started just doing really basic projects from the ground up... now it's just copy-and-paste for whatever new I want to use. This board up top took me about 8 hours to lay out, and another 1 to fab, place and roast.

[Joni Larsen-Haikarainen]

It is very inspiring to watch your videos :)

[Indyaner]

Good Guy CNLohr

[CNLohr]

Check out the link in the description. I seldom order parts from Newark, but they had the right thing this time. $15 is reasonable, I thought.