RaspiWiFi VS smartknob

I made a robot that cheers every time the Green Bay Packers score (American football).

https://photos.app.goo.gl/oXd6H27x7CDrpKrp9

The chassis is 3D printed and a Raspberry Pi is hiding, with a couple of speakers, in the base. The Pi connects via WiFi to the local network and checks ESPN’s publicly available JSON for that day’s game to determine if the score has changed.

I gifted it to a friend that owns a bar and wanted him to be able to move to new networks and reconfigure without using a computer. So, I wrote some python scripts that interface with the GPIO pins on the Pi to reset the device and broadcast a WiFi network and web interface that can be used to connect to other networks.

That last bit now has over 500 stars on GitHub!

https://github.com/jasbur/RaspiWiFi

This looks like what you are looking for: https://github.com/jasbur/RaspiWiFi

https://github.com/jasbur/RaspiWiFi This is a python solution I went with. I'll be honest, it does seem a bit buggy. For example, I have found if you type in your wifi password wrong, it didn't reset again to default back to the hotspot. Maybe I did something wrong. I also soft bricked a pi I had to totally reflash by messing around with this code, so be careful.

...it's a spring and a servo. Or a brushless motor.

https://github.com/scottbez1/smartknob

...or any not-bottom-end-of-market steering wheel for driving video games.

I made a rotary input device that provides software-defined "virtual" detents and end-stops, implemented using a BLDC gimbal motor. It can dynamically switch from completely smooth unbounded rotation, to having detents with configurable spacing and strength and "end-stops" that spring back if you try to rotate past them.

https://www.youtube.com/watch?v=ip641WmY4pA

It's got a round LCD on the front of the knob (wired and supported via the hollow shaft of the motor) and uses the flex of the PCB and strain gauge sensors (in the latest revision, simply SMD resistors whose resistance changes when stretched) to detect when the knob is pressed down.

It's open source hardware and software - https://github.com/scottbez1/smartknob

HN folks might appreciate that it communicates with host software on the computer via protobuf-encoded USB serial messages -- nanopb is awesome for embedded C protobuf support, and having the defined schema, autogenerated serialization code, and compile-time type safety is so much nicer than ArduinoJson or hand-written binary protocols!

I'd love to get it hooked up to some real software eventually (video editors or home-assistant control are my 2 main ideas), but it's really just been a fun project to tinker with and try out some new ideas and parts I've never used before.

GitHub

I'm trying to design a smartknob based off Scottbez1's design (https://github.com/scottbez1/smartknob), but with a stripped down feature set. However I can't seem to get the magnetic sensor to work properly - it's an MT6701 connected to an ESP32 via SSI.

Thank you so, so much for finding it. Unfortunately on eBay its not cheaper and ali doesn't have it cheaper either. It looks like an out of production item, like when I wanted to make this https://github.com/scottbez1/smartknob and it was gone except when sparkfun got a few.