pmw3360-breakout VS rp2040-pmw3360

Here you go: https://github.com/jfedor2/pmw3360-breakout

A core module just consists of nice!nano and a pmw3360 breakout board by jfedor2 (https://github.com/jfedor2/pmw3360-breakout) which is shown in the last picture. (By the way, jfedor2 has a lot of cool custom trackballs based on RPI which provide lots of ideas.) I'm planning to use this module to apply in various setting, and this was the first prototype to replace my Ploopy Nano.

Outside of the Ploopy, if you haven't checked out u/Jfedor's stuff I highly recommend it. They created an open source rp2040-PMW3360 pcb specifically for creating new kinds of trackballs. I have bunch coming on the way now (It's a little pricier due to the smd components) and the parts to make trackball 7 when I get here. It's bigger (uses a standard billiard ball) but it seems closer to the direction I'd like. /u/azat-dev on here posted a modified Kyria using Jfedor's 3360 breakout but I don't think they can post the files because it uses modified closed source code.

Personally I'd use one of Adafruit's nRF52 Feather boards with an optical sensor breakout like this (this one happens to be mine, but you can find others).

Here's a nice one if you want to order your own from JLPCB: https://github.com/jfedor2/pmw3360-breakout

You're absolutely right and in that spirit I've posted the STLs here and the sensor breakout here.

Not sure what issue you're referring to. Making a 1000Hz trackball? Yes, of course it's possible. I've made several. Any decent sensor (e.g. PMW3360) and microcontroller will do.

One example: https://github.com/jfedor2/rp2040-pmw3360

It might be helpful to use jfedor's PMW3360 + RP2040 PCB - it has a Raspberry Pi RP2040 chip on it as well as a PMW3360 mouse sensor. Then they also designed some smaller PCBs for mouse switches.

Quite a lot of work seems to have been done to allow PixArt PMW3360 (or similar) .. https://github.com/jfedor2/rp2040-pmw3360 … https://www.printables.com/model/131450-trackball-15

Guy on the right is a Trackball 7 by u/jfedor. I had the RP2040+PMW3360 pcbs printed out and added Kailh GM 8.0 switches in there. The billiard ball is an Amarith Black cue ball (not an 8-Ball) I got off of ebay. Due to a parts shortage it's actually missing a few SMD parts that I'm having a hard time tracking down.

It's worth asking /u/jfedor if he has used the nice!nano in his builds. I know his dual-trackball build uses a Raspberry Pi Pico.

I've been into spheres lately and I've made this trackball. It doesn't sit on a desk, you have to hold it in your hand. It only has one button, but it totally works. The ball is 57.2mm and it sits on 2.5mm zirconium oxide bearing balls. 3D models, electronics and code.

If anyone's curious I put the 3D models here and the files for the PCB and code are on GitHub.