I build an MQTT controlled tank using ESP32 controlled using an Android APP controller.

This is the link in case you would like to heck it out: https://github.com/MihaiLupoiu/RC-Tank

The code in ESP32 is done in C but tried my best to make it modular as possible for future components.

Really interesting project, +1

>>1x Raspberry Pi Zero W hopping between my garage and car running a program that collects and displays OBDII and GPS data

This is what I also want for my car. I am planning to collect the GPS and car data and answer the eternal question I have .. Which road to work is more efficient in time and gas. :)

I tried something similar and was astonished at the amount of variance caused by stoplights and weather. Because of that, it's hard to get a good dataset for comparison.

In the end, because of the variance caused by external factors, there was no clear winner in my case, so I now use an app from random.org to flip a coin and follow the results accordingly. That's not because either way is better, but this way if I have a long delay for some reason, I can blame it on a bad coin flip.

Why do you seem to be shadowbanned with two comments? Your first comment was dead before I vouched for it, too.

To be honest I don't know... I'm usually just reading on HN, nothing else...

Very similar to what we have in the office as well. The difference is that we are using bluetooth and NFC of the mobile as authentication method.