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Josh Stewart
Works at IBM
Attended University of Ballarat
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Josh Stewart

Fuel Injection  - 
 
In case anyone is still looking at an Arduino based ECU/EMS, I've just uploaded a new video showing the current features of Speeduino. 
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John Bump's profile photoJosh Stewart's profile photo
3 comments
 
+John Bump No worries, if there's anything else I can add to make life simpler, let me know!
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Josh Stewart

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A huge chunk of my spare time over the last 18 months or so, summed up in an 11 minute video :)

Josh Stewart

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Speeduino (Arduino ECU) ignition control demo (Nov 2013)
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Efria Junianto's profile photo
 
hi josh, I am from Indonesia
I am very interested in the arduino is used to control the engine.
and I've seen your code on github. and it was only used on the arduino mega.
what if the code was applied to aruino uno?. I think for a single cylinder engine simply use arduino uno.

thanks for sharing.
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Josh Stewart

Discussion  - 
 
These are the ridiculously cheap addressable RGB LEDs I had at the meet tonight incase anyone else is interested. 
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Josh Stewart

Discussion  - 
 
Not sure if anyone is interested in this sort of thing, but here's a close up shot I did today to try and show a fuel injector firing. 
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Phillip Kilby's profile photo
 
I'm interested but I'm in Perth. I couldn't afford linux.conf =/
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Josh Stewart

Discussion  - 
 
I came across this site on Reddit this morning. Seems pretty cool. Their aim is to be the Etsy of open hardware, so good for both buyers and sellers. 
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Stuart Clark's profile photo
 
Looks interesting, will have to dig deeper at some stage.
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Josh Stewart

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Love seeing these sorts of videos back from people using Speeduino!
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Josh Stewart

Fuel Injection  - 
 
Bit of a feature demo of where things are at with my ECU project. 
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Benjamin Delcroix's profile photo
 
Happy to see this, i've receive 2 oscilloscope some days ago, waiting new arduino 'cause i've kill of my 8 nano :(
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Josh Stewart

Community Issues  - 
 
Hey all, I've just found this community and thought there maybe some interest in a project I've been working on for about 12 months. The aim is a fully capable engine management system based on an Arduino Mega with both spark and ignition control. It's currently up and running  and has fired a couple of engines in a static environment. 

Basic features are:
8x8 maps with interpolation
Support for missing tooth crank wheels up to 36-1 
Alpha-N or Speed Density load control
High-Z injector hardware
Compatible with Tuner studio (http://tunerstudio.com/) for tuning

Currently working on things such as acceleration enrichment in order for it to be properly usable on a road vehicle, but hoping that will be done shortly. It runs entirely through the arduino IDE with only VERY limited use of assembly (and even then, only in a 'black box' capacity). I've done 1 small round of boards for testing, but want to do at least 1 more run before finalising it. 

I'm at the point where other people starting to play with it would be good as it's moderately usable. If there's any interest I'll start putting together some more complete documentation. 
Contribute to speeduino development by creating an account on GitHub.
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Josh Stewart's profile photoEfria Junianto's profile photo
16 comments
 
Yes, of course. I got it from my friends who have modified the bike with racing CDI (ignition only)
to change the engine I've done as compression pressure and duration of the valve mechanism, but for me is still the standard factory ignition.
for it if it is successful, I will try to change my bike.
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Josh Stewart

Discussion  - 
 
These looks pretty nifty and the price is really impressive for what it is. If anyone else is interested I'll go for the double pack ($30 off and half the shipping). 
The world's first 100MS/s open source oscilloscope for iPad, Android and PC. A must-have for every Arduino and Raspberry Pi developer!
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Josh Stewart

Discussion  - 
 
This is an amazing piece of work for the price if anyone is interested in game cabinets. 
The All-In-One Open Source Arcade Controller: Keyboard/Mouse/Joystick Control + RGB LED Drive + Accelerometer!
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Stuart Clark's profile photo
 
That's very cool.
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Josh Stewart

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My hobbies take me to strange places sometimes. 
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Have him in circles
165 people
Олег Отченаш's profile photo
Brett James's profile photo
Katerine Nagato's profile photo
Puji Pjs's profile photo
Stuart Young's profile photo
Tom Owens's profile photo
Ensil Inc's profile photo
Tim “mithro” Ansell's profile photo
Melinda Stewart's profile photo
Education
  • University of Ballarat
    IT, 2002 - 2005
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  • IBM
    Delivery Project Executive, 2012 - present
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