Pegoku

The car works worked. Until the axle gears started stripping 😭.
This is the best video I have of the car working autonomously.
I swear the car did consistently 3 full laps.

Did the README.md

Finished the PCB!! 100% of the DRC errors are fixed.
I also added a panel with all the back capacitors so I can get single sided asembly, and then I will hand solder all the capacitors

FINISHED ROUTING GND!! I also fixed the DRC... That was a pain...
I had over 1k Errors (Still got a lot of warnings, but they're related to silkscreen overlap), luckily a big part of them were due to bad configuration of constraints and net classes.

Half of the GND routing is done!...
This is taking, like, forever. There are 1024 LEDs, 512 remaining ...

I finished routing most of the +5V! It took a while.
Now time to do the GNDs :sob:

The car now fully works (via RC) and we've written the docs for it.
Also, I discovered you can add interactive flowcharts (using mermaid) to the github README.MD

car is fully assembled and I did a simple RC code.

Instead of using SMD connectors, I'll just use solder pads and manually solder wires for the power, I also placed all the capacitors

It should now be good, but prob still have some I have missed

Wow, that took a while. My hand hurts, 😭.
Hope I haven't wired them wrong or missed any.

The Shipment Info transition works!!
It was hard to get it to work, mainly bc it was a recyclerView, but I got it working!
It's still not 100% done, there are a few things I should edit, like the motion/speed curve, background, etc. But overall, it's good-enough

I'm working on transitions between the multiple views, as I want it to look more M3-ish.
They don't fully work, as some things take too long to load, but it's looking better

This is WIMP (v2) an android app to track shipments.
After wasting too much time trying to get notifications, I did it!
I'll prob have to setup some sort of middleman to send the push notifications to the app. Not sure if I should use Firebase, Supabase, ... or host it myself. I would like the latter, but that means I would need to have secure code 🫣

For this LED Display, I went with WS2812B LEDs, as they would be easier to route. https://www.lcsc.com/product-detail/C5349953.html
For this PCB I will go with a 32x32 matrix, with a total of 1024 LEDs, cheap enough so I can afford it.
My initial idea was to use 32 channels to have as little input latency as possible, but I found out it wasn't feasible, so I ended up with only 16. This should still be fast-enough.
I'd like to have a way to drive the display via I2C, SPI or some sort of easy to use protocol from an external MCU.

finished (I think) the cad

I've fixed the axis holder pieces, also redesigned the motor support to have a way to prevent the nuts from spinning while tightening them, and I'm designing a way to support the RPi

the car is almost fully assembled! sadly the piece (in the image) is too big, and we modified it in cad

I designed the Lidar supports. I also added one on top of the ServoHolder. I haven't yet designed the base with the necessary holes, though

After TOO MANY prototypes and cad design iterations, I was able to have a good enough design base for the car

After quite a lot of cadding, I've got the basics of the model.

I finished the PCB. I had to change/rewire a few components, but it should be finished! Now time to do the case

I started placing the components for the PCB. I started with the Powerbank IC

Today I started with searching an IC that I could use for the powerbank. I wanted a USB PD cabable one, but they were quite a bit harder to use, more expensive, and needed multiple cells, so I ended up with a 1S 5V/3A powerbank. it will be enough to fast charge a phone. And I will also be able to use the voltage to power the led easily, as it is always on.
I went with the ATtiny202, BQ25895 and AL8860MP ICs.
I finished the schematic with all the components. Hope it works