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Image 1 — I Made a Boost Controller with a ESP32C3 (+ first custom PCB)

▲ 99 r/Speeduino+2 crossposts

I Made a Boost Controller with a ESP32C3 (+ first custom PCB)

What this basically is is a PID controlled PWM Solenoid driver, running on a C3 SuperMini. Designed my first PCB for this (with some mistakes ofc) and decided to use a TC4422 mosfet driver. Also included a 5V supply to be able to plug it into my cars 12v system. Code was mostly written by an LLM, including the Webserver which this is running for setting Target and PID parameters. (I'm a real newbie with all of this) I'm already working on rev2 which I'm gonna post on GitHub solving all my issues with this one. (https://github.com/ziraw).

I've tested the perfboard prototype on my car already (1989 200SX CA18DET) with a BMW N75 Boost Valve strapped to my waste gate and it seems to work perfectly, just not getting enough air through the OEM Airbox though atm, hitting a ceiling of 0.9bar. Gonna install this soon and see what it does. I/O: 12v,5v,sensor(i/o), valve.

The only thing this doesn't include ATM is a pressure sensor, I'm grabbing it off of my boost gauge. But the IO has a 5V supply for any type of sensor to be hooked up directly, the code might need adjusting through. It's currently Ov=-1 / 5V=+4 bar (Scaled to 3.3V and divided by 1.1 since that seems to reflect what my gauge is saying more accurately).

I don't specifically know why I made this, just thought it couldnt be that hard and I haven't seen anything like this, besides what maybe Speeduino and rusEFI are doing. If this already exists I'd love the be informed :-)

Cheers

(disclaimer: might blow up your engine)

u/ziraw_tech — 2 days ago

▲ 5 r/Speeduino

Model T or Model A, other pre 1950 engines?

I inherited our Family's 1915 Model T. IT was purchased new off the Showroom Floor in 1915 by my Great Grandfather, and was the first car the family bought. SO keeping it in the Family is something that will happen.

IF you are not aware driving it requires some skill that takes time to master. YOu have 3 pedals that are actually the transmission, and the spark advance lever is on the left side of the steering column, and the throttle (gas/fuel) lever is on the right side. You need to know the pattern to press the pedals to engage the right gear on the transmission, while at the same time controlling the fuel AND timing with your hands as well as steering the vehicle down the road... oh did i mention there are no brakes?

Currently I am the only one in the Family able to drive/start the T......

The plan is to update the car and add an electric starter, swap to a 12 v system, and add Speeduino getting rid of the need to adjust the timing keeping the throttle lever. Ill swap to a compatible throttle body and go from magnetos to full EFI. All while keeping her looking as close to stock as possible.

Anyone have any any experience with the pre 1950 engines?

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u/UncleAugie — 7 days ago

▲ 8 r/Speeduino

Spark table values not representative of gauge that represents the table.

What is real? And with no corrections, why does my spark table not represent what the Spark Table 1 gauge is displaying?

u/SpaceTurtle917 — 9 days ago