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You can use any powerbank that a) will fit inside and b) can deliver 5A of power or c) power it via the USBC socket next to the keyboard

I just peeked inside the SD card slot and then i thought "hmm..." :)

The inspiration for this project was just the idea of having a set of “robot eyes” trying to make eye contact with you. I already had the Jetson from a previous project, so I decided to use that, but you could most likely get away with using OpenCV to do face detection. My inspiration for the eye mechanism was the eye mech designed by @WillCogley. Since I was using different servos and also wanted individual eyelid control, I had to do the design from scratch in Fusion (he only provided STL files, which are notoriously hard to convert to solid models for modification). I really just wanted to satisfy my own curiosity with this project and didn’t have any commercial aspirations, so the masks/faces are now hanging on the wall in the man cave. It was a really fun build, and it also gave me an opportunity to play around with mold making and rotocasting teqniques, using the excellent materials sold by @smoothon

I already had most of the electronics from previous projects, so the financial "investment" in these heads was really only the batch of silicone, monster clay and resin. The Jetson was probably overkill, but it was a fun project and it gave me an excuse to play with machine learning (You could in all likelyhood get away with using a pi + opencv for doing the same thing.)

It is not an app, only a web page hosted by the ESP32 that allows you to change the PID parameters on the robot. You can find the source code here: github.com/hansj66/automaton-xl320/tree/main/firmware/esp/balance-bot

Nice :)

Thanks!

Thanks for watching!

I'll upload everything to github once I'm done. I also tro to maintain a build log at hackaday.io (hackaday.io/project/195749-npod-controller-board-and-simulator)

Thanks :) It is still a work in progress (I'm currently working on integrating servo control into the project. After that I guess I'll add a simple web server with a control interface . I plan to make the code and documentation available on github when I'm done.

Thank you very much!

The error was driving me crazy. This was a brand new camera and the error didn't occur until I had used it for a couple of weeks. If it was firmware related, it should have acting up since day one and also been more consistent. I decided to peek inside the SD card slot and noticed the mechanical microswitch inside. That got me thinking and I decided to test with a piece of tape to force the switch in case it was a mechanical issue.

Thanks :) I didn't do any modifications on any switches. Maybe the scoring behaviour was caused by bouncing contacts ?

I have uploaded Eagle files and schematics to github.com/hansj66/NixieKit. PS. I would not recommend trying the IN-1 variant of the board since it assumes that all IN-1 tubes have a precise orientation of the digits relative to the sockets (they don't...).

​@@TimeExpandernot sure what the IN-1 remark means but thanks. Controlable ":" seperators like other designs would be a nice addition also. 00:00:00 For example. 🤷‍♂️

@@KJPage I made three different boards. for IN-12 tubes, IN-1 tubes and a generic board with screwterminals. Identical electronics&firmware for all boards, but the IN-1 and IN-12 boards have dedicated tube footprints (and you cant trust the digit to line up perfectly with the footprint for IN-1 tubes)

Since the channel seem unable to respond I ask, have you dissembled the machine following the video?

Sorry for not getting back to you. All the cranks were jammed. I suspect that the machine had been oiled at some point and that the oil had hardened. I manage to un-jam the cranks by adding _more_ oil and carefully pulling/pushing the lever. To my surprise, that resolved the issue.

@@TimeExpander What type of oil did you use? And did you clean the old oil somehow?

@@davidcarlsson1396 Just ordinary sewing machine oil.Not really sure if these machines are supposed to be oiled or not in the first place.

@@TimeExpander Whether they should be oiled or not is an excellent question. I will the coming 3 years attempt to research this...