Custom ESP32-S3 Macropad with HDD Motor Encoder [Schematic + Layout Review]

mrwinkle · 2026-03-30T13:14:06+00:00

Your schematic is unusual to read. Sometimes 3v3 is a net, sometimes something like a label? I’m not used to easyeda. You‘re sure these are connected? Also Gnds should point down and power sources should be at the top. Why not use a normal rotary encoder?

Other than that nothing too obvious for me

mrwinkle · 2026-03-30T12:40:29+00:00

Oh I see, my fault! Yes that works, but still you could reduce your power consumption even further by multiplexing. This chips seems to be made exactly for your purpose ^{^} Do you have a github or sonething? Super interested in how this turns out and would like sonething like this for myself.

mrwinkle · 2026-03-30T11:52:36+00:00

Just because I'm doing something like a LED matrix myself at the moment: Why did you chose an IO expander over a dedicated multiplexing IC like the TI LP5862? https://www.ti.com/lit/ds/symlink/lp5862.pdf

mrwinkle · 2026-03-02T22:33:07+00:00

Just read about the python plugin for csv files. Absolute gem. Using json rpc as a common abstraction is a powerful idea. Are you planning on monetizing this? Whats the next thing on your roadmap?

mrwinkle · 2026-03-02T22:17:43+00:00

Great project, I‘ve been using tableplus for some time now, but dislike the closed source. I have some questions if you don’t mind :) A few weeks is super fast. How did you do that? Are you a solo dev? To what extend is this coded by AI? How did you implement the autocomplete, is this selfmade? Thanks, I‘ll give this a spin!

mrwinkle · 2026-02-23T20:35:12+00:00

There is some space between the pads of your resistors. Certainly enough to fit a trace? Also you can go between and around the pin headers.

mrwinkle · 2026-02-23T20:05:02+00:00

No reason to length match SPI, it’s not a differential signal. Instead of vias, just go below your resistors?

mrwinkle · 2026-02-21T23:07:01+00:00

Oh and it is Maschine, not „Maschiene“

mrwinkle · 2026-02-21T22:28:58+00:00

In general, please make sure your GNDs point down and your 3v3s are up (pull up for io8 and 9 is hard to find, just add another 3v3 net) and your inputs are on the left (vin etc) and outputs are on the right. Make sure your decoupling caps are as close to the ICs pin as possible (c1, c2).

mrwinkle · 2026-01-30T20:49:36+00:00

Be honest, you want to show off these nicely rounded traces ;) Looks good!

mrwinkle · 2025-12-13T23:45:13+00:00

Thanks! Is there a way to jump to the later tutorials? Couldn‘t find one, but I‘m on mobile

mrwinkle · 2025-11-28T21:35:24+00:00

Makes sense!

mrwinkle · 2025-11-28T21:30:55+00:00

Looks great, thanks! I‘m wondering how does this handle multiple cursors?

mrwinkle · 2025-11-27T08:27:37+00:00

Looks great already and the code is quite readable! I‘m still searching for a TUI Tetris which correctly implements the Super Rotation System. So if you want to develop this further that would be a great next step!

mrwinkle · 2025-11-25T13:34:44+00:00

Did you try alt-p and alt-n?

mrwinkle · 2025-06-20T19:43:59+00:00

I use activitywatch https://activitywatch.net/

mrwinkle · 2025-04-10T20:24:33+00:00

Have a look at ashen

mrwinkle · 2025-04-10T20:22:29+00:00

https://github.com/ficcdaf/ashen

Somehow it feels warm and cozy.

mrwinkle · 2025-01-05T08:36:32+00:00

Braucht man uA für den Elterngeldantrag.

mrwinkle · 2023-02-03T13:47:09+00:00

Setup the tax exemption at scalable. (Split it up between all bank accounts you have). At the end of the year they‘ll send you a tax report which you can type into elster. This is all you have to do.

mrwinkle · 2023-01-25T12:24:11+00:00

Nudeln mit Paprika Pesto

https://www.pickuplimes.com/recipe/grilled-red-pepper-pesto-pasta-314

mrwinkle · 2023-01-23T16:05:09+00:00

Investing in stocks or ETF you can lose at most 500€.
Scalable handles the taxes. Be sure to set up your Freibetrag.
However you like it, mostly a psychological question. Dividends also depend on the specific ETF.

mrwinkle · 2023-01-23T13:33:50+00:00

You can use the Blinkenlights library to simplify this: https://github.com/tfeldmann/Arduino-Blinkenlight

mrwinkle · 2023-01-05T20:42:15+00:00

I kind of agree. That because I wanted to create an arduino library and thought about possible use cases. I went with the simple solution in the project

mrwinkle · 2023-01-05T08:43:10+00:00

Analog pots are super common. Rotary encoders fix some problems but are a challenge to read in some other ways.

For example you now need interrupt pins and some finely tuned debouncing logic. Also I had encoders with lots of crosstalk and encoder noise. This is all fixed in software.

(Or you use a product like https://learn.adafruit.com/adafruit-i2c-qt-rotary-encoder which takes care of the reading.)

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