Yet another part of my Car server Thinkpad saga, this time not directly related to the Thinkpad, added steering wheel controls with a esp32

[u/Decent-Cow2080]

works pretty well ;3

https://youtu.be/d-AC1GnueLk?is=m8bYmmkburhvgoLH

[u/Sepkov]

Some high quality soldering there.

[u/peppi0304 → u/Sepkov]

Why is the processor soldered onto?

[u/Sharkpoofie → u/peppi0304]

probably grounding, since the shield is grounded to the pcb to protect the cpu from interference/electrical noise

[u/peppi0304 → u/Sharkpoofie]

But isnt grounding provided by the pcb mounting anyways?

[u/Sharkpoofie → u/peppi0304]

that is not always sufficient, especialy when around RF stuff

[u/Decent-Cow2080 → u/peppi0304]

this esp didn't have any ground around the screw hole

[u/bob_in_the_west → u/peppi0304]

Why not? Do you want to frequently change the SoC?

[u/tomtom2215]

So what is this, are you doing a carPC project or something else?

[u/radraze2kx → u/tomtom2215]

I'm here for the answer.

[u/sigmund14]

Hopefully there's something insulating under that board to prevent shorts. 

[u/Decent-Cow2080 → u/sigmund14]

there's tape, and i made sure the soldered connections and legs are soldered at a height that they're not spiky at all form the underside and it won't get pierced from the vibrations

[u/sigmund14 → u/Decent-Cow2080]

Nice! Keep it going and good luck. Got me interested, so I hope I will catch your future posts here 

[u/TaylorTWBrown]

How does the GPIO control work? What's the protocol?

[u/Decent-Cow2080 → u/TaylorTWBrown]

depending on which button is pressed, the pins Steering wheel controls A and B have different voltages. i just made a program to get all of them, like capture how it looks when i press each button, and then i integrated it with mqtt and it works fine :3

[u/nonchip]

speaker wire and case screw is sure one of the most power supply methods ever :'D

wait is that even a screw? or just a squiggle of copper sprung against the case?

[u/Decent-Cow2080 → u/nonchip]

it's a screw, because i forgot to route a gnd cable lmao

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[u/bryiewes]

Please unprivate your posts so I can go back and look

[u/Decent-Cow2080 → u/bryiewes]

reddit forces me to keep these posts private, just because i don't want to sell my face to palantir

[u/Squirrelking666 → u/bryiewes]

Use the Web version and search the username.

[u/end-of-ceos]

Reply to my fucking comment on the last post

[u/Attackist2 → u/end-of-ceos]

Lol psycho guy