Totally unrelated / Smart Watch Design

Hello all.

I’m deep diving into ultra-low power / BLE (Bluetooth Low Energy) domain to future support some efforts requiring motor remote control.

As such, I decided a good practical use case would be developing a BLE-controlled smart-watch.

Since this here forum is not the right place to do that, I moved my development to:

If anyone is interested in the progress, I post my work there, and hopefully if successful, I’ll make it available to you later.

Hopefully you could later use this effort to support your development of remote stand-alone motor control.

Cheers!
Valentine

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Updating the progress with something that could potentially be used as a SimpleFOC MCU, you can see the full progress up the original post.

The tiniest nRF52 break-out development board and the tiniest board I’ve ever created.

External DC/DC converter inductance.

External TCXO 5ppm accuracy (about 2 minutes/year deviation).

Built-in antenna.

Break-out connector.

80 micron traces.

BGA MCU (the one JLC dropped and they had to re-fab my PCB…)

The real question, will it work? Stay tuned!


Cheers,
Valentine

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wow! how much extra do you pay for that?

$200 for 2 including shipping. I believe it’s about $50 extra. They also failed to manufacture on the first try, so we went for round 2, lol.

Small update, moved to hackaday.io

Cheers,
Valentine

4 Likes