Rejuvenating the Ardustim project for Speeduino

Engine simulators have always been an important part of setting up and developing an aftermarket ECU. Speeduino has typically used Ardu-stim for this purpose, but this has stagnated somewhat over the last few years.
This is early days on some work I'm doing to rejuvenate that system.
Current Alpha release: github.com/speeduino/Ardu-Sti...

[@DIY-V12]

Really nice work on the decoder patterns Josh, we can all consider Ardustim thawed out now, thanks to your efforts.

[@frank1380]

Great work as usual. Ardustim was helpful for me when I put together my 0.3 board to know I didn't make a critical assembly error. Thanks

[@ivanmzr]

Looks great!

[@QuackGoesTheDuckQuackQuackQuac]

Super video! I applauded for A$5.00 👏👏

[@TyCrawford]

Being that I've been building my Speeduino for a Subaru rally car and I have loads and loads of parts in the garage, I've long been contemplating using actual Subaru crank and cam pulleys and sensors, tied together with a belt, driven by a motor of a known speed, and then maybe 3d printing a model of the boxer engine as an enclosure, with pots at the throttle body, coolant temp sensor, idle air temp sensor, etc.

[@XPbIM3]

Very nice! Graphics representation of trigger pattern is also great!
By the way - do speeduino is able to sync and start up using just crank sensor in semi-seq mode, and then when cam trigger arrives - switch to full-seq? Also a fallback to semi-seq when cam-sens fails is supported?

[@pseixaspal]

Hi! I'm struggling with getting the basic software to work and connect to the Arduino. I'm working in Ubuntu. First had to make avrdude executable, then had to change the baud rate from 57600 to 115200. That allowed me to upload the firmware (Arduino Uno ATMega 328P). But still can't connect...

[@blow0me]

Finally got it working on a nano. It would be great if the same code could be repeated on another pair if I/O's to offer say a crank/cam pattern on one pair, and just another one or two generic PWM signals on others via a pot ?

[@mariopic]

this whould be sweet if it can be setup to make it so it can simulate any crank or cam setup so u can test any ecm

[@kyushaspeed]

I like the graphical pattern display!
Are there plans to add other sensor input simulations?

[@Speeduino]

Do you mean inputs for other types of sensors (IAT, CLT etc)?

[@kyushaspeed]

Speeduino correct.
Having some programmed/recorded curves that simulate real world conditions would be handy to check parameters which spinning POTs don’t seem to achieve. Eg. Cold starts, cruise to WOT.

[@Speeduino]

@@kyushaspeed That's an interesting idea. Not something I'd planned as I had always done this separately with extra hardware, but I'll add it to the list

[@XPbIM3]

There is also a good idea to use some kind of DAC and a negative voltage supply to provide a true sine wave output. I've used an R ladder shield to test my vr sensor input on board, but having a several DACs can be useful to test analog inputs also.

[@hernanledesma4984]

How to make the wheel selection by potentiometer work adc1

[@yuppiecruncher]

Just used this in 2024 to test my new speeduino. Thank you for your work. Any chance yiu have a wiring diagram for the potentiometer control?

[@yuppiecruncher]

Found it buried in the code. For those looking this far, hook up a potentiometer to 5v, GND and the signal wire goes to Analog 0 or A0. It's called ADC0 In the code. Happy tuning!

[@blow0me]

I have an Uno....but damned if I can get anything remotely like this to load or work ? It is there on COM6, but I cannot get any of this to load onto the unit. Not having any luck with ArduinoIDE and those files either, there are always errors. ( total Arduino newbie, so clueless at this )

[@mariopic]

also had trouble finding all files to load the board

[@MegaScott]

3 years old...Has anyone thought of adding support for a more capable MCU? ESP32? in-built Bluetooth and much more program Flash and System Ram could make for a nice Stim. Thoughts?

[@nunopereira7913]

For some reason I only get one wheel. Only the crankshaft pattern. Will test more tomorow.

[@Speeduino]

It's a bug on the Windows version. It adds a scrollbar automatically on the right, which pushes the 2nd gauge down. If you make the window slightly wider it should pop back up.
Will be fixed for the next release

[@davemf1]

I've been working on Alpha release 3 trying to fix the sweep part. Any suggestions on where to look?

[@bigcheese781]

And there I was, believing Ardustim being a side project of Speeduino...

[@nastymix7875]

Please add trigger 24-2 and trigger 24-2 and camshaft sensor 1.

[@edstretch2238]

will this work with an Arduino mega?

[@blow0me]

I tried on an Uno with no luck, but worked straight away with a nano.

[@edstretch2238]

@@blow0me I got it to work with a uno in the end

[@blow0me]

@@edstretch2238 No matter what I tried....it just wouldnt do anything with my Genuine Uno. Although it's worked out ok, the Nano is tiny and they're very cheap.

[@ou-fs8zw]

@@edstretch2238 Mate , Please how did you get this to work on the UNO

[@Robertas_Grigas]

any updates on the speedyknock?

[@pk386]

agreed! I would like a knock detection system that doesn't cost $700+ USD!

[@pk386]

you guys should really figure out a way to team up with @HPacademy.

[@silverpairaducks]

I want to cheat my old ecu into thinking its connected to a real live boy.....