[GoinManta]

Well.. its kind of nice to be travelling down a path already taken. I will admit I have not read the whole tread yet.. but know its a great place to start. As most know I have the EFI project, and with it a distributor I have made ( that MAY Solve some of the issues raised here ) that uses a 12-1 shutter. Other than this and the fact I may simply the ignition cycle by running wasted spark. This is about exactly what I was thinking of doing.

That said I have zero experience programming an arduino or doing this kind of thing..

Well I did learn Basic in High School in 1985, and took some basic electrical engineering courses in 1998 in college, sold and rewired more than a number of cars and have written a lot of HTML over the years so .. how tricky could it be ? ( Very for my old brain it seems.. )

My parameters will be a little different than yours but will be basically trying to do the same thing. ( I do like the potentiometer idea.. for "dialing it in")

Anyway my specs are this :

• Arduino Uno ( w/ Bluetooth built in )
• MAP Sensor built onto the board.
• Temp Sensor - 0280130126
• Wasted Spark Coil
• IGM - 0277100299
• Bosch Hall Sensor - 0237520050 Distributor

I also would like a GUI ( or maybe an excel spreadsheet that kicks out a CSV file ? )

That said.. I am not using a generic UNO..

(24) From Arduino UNO to Wemos D1 R32 ESP32 - YouTube

This UNO is a major upgrade to the original UNO, and includes Wifi and Bluetooth.

Original Uno :

8 Bit Microprocessor
32KB Flash memory
USB A connector
No Wifi or Bluetooth

Wemos D1 R32 ESP32 Uno :

32 Bit Microprocessor
4 MB flash memory
USB Micro connector
Wifi/Bluetooth built in

Now I would love to say I know what all that means in the world of Arduino.. but I do not. I do know if compared to the PC world.. its like upgrading to a Pentium from a 286. So it should be more than plenty to kick start this program.

Cost is $10 at Amazon.. crazy right ?

https://amzn.to/3yQNXfa

 

[GoinManta]

Technical Documents | Espressif Systems

Downloads: SDK & Demos, APKs, Tools and Documents for Espressif Systems products and solutions

www.espressif.com

 

[First opel 1981]

That IS a crazy price. My clone boards cost more than that.
I'm going to derail this a teensy bit. but it's Opel related, I swear.
What I'd really like is a cheap solid state relay that could be connected to the pinouts. Say, if you wanted to run headlights with the Arduino, the Arduino wouldn't be able to handle all the current.

I actually built a board (I'm pretty sure it was an AT Mega) with every single exterior light controlled by the Arduino pins. I'm almost certain it wouldn't survive all the lights, even without the headlights.
Goal of the project is top secret but what I ended up with would act the same with LED or incandescent bulbs.

Sorry, to derail a little.

 

[V6Opel]

Why not go all 4 coil on plugs instead of wasted spark. I was working on a similar project with 4 individual triggers inside the stock Opel distributor that would provide 5 or 12 volt digital trigger signals to smart coils. The advantage of the smart coils are that dwell and the power ignition transistor (IGBT) are built into the coils. Super simple. Your idea is better as you can eliminate the mechanical and vacuum of the stock dizzy and go 100% solid state. The arduino should provide all 4 outputs to do this as well. I believe there are many DIYers out there doing similar things on other engines,

 

[V6Opel]

Also see this thread from 72Rallye:

Arduino Nano-based electronic ignition

There are plenty of different electronic ignition systems in existence and I have no pretension of building anything better than what is already available. This was merely a personal challenge to see if the Arduino Nano can be used to build an ultra-low budget fully-programmable ignition system...

www.opelgt.com

 

[GoinManta]

Interfacing HX710 Differential ADC with Arduino (swharden.com)

 

[GoinManta]

Also see this thread from 72Rallye:

Arduino Nano-based electronic ignition

There are plenty of different electronic ignition systems in existence and I have no pretension of building anything better than what is already available. This was merely a personal challenge to see if the Arduino Nano can be used to build an ultra-low budget fully-programmable ignition system...

www.opelgt.com

Yea posted to it.. but the more I looked the more I realized the only thing similar to our projects was the name Arduino. Similar to how Speeduino and Arduino IDE are not the same but are as well.

So, felt best to create a new thread here and keep all the info in one place.

Like this... :

Look what I found..

Coil on plug without having to figure out how to make it look good and mount to the motor

Just saying this maybe an option.. not available to my speeduino due to limited I/O on the Mega board I am budget limited too.. for at least Version 1.

Long story short, as I understand it from working with my guy on the speeduino for the EFI..

Speeduino is its own firmware.. that uses a specific subset of Arduino hardware, and interfaces with Tunerstudio software. Making it both Arduino and not, and also given the mixed results I have found online when it comes to running Tunerstudio as ignition only. it may come down to the K.I.S.S. principal.

The board I picked is simple enough, uses Arduino IDE, has bluetooth/wifi to interface and can use a 12V input. So it could be hidden under the coil in its own housing.

Its all speculative now, until I find someone more experienced in coding to help with that aspect of it or until I stumble my way through the coding.

 

[GoinManta]

That IS a crazy price. My clone boards cost more than that.
I'm going to derail this a teensy bit. but it's Opel related, I swear.
What I'd really like is a cheap solid state relay that could be connected to the pinouts. Say, if you wanted to run headlights with the Arduino, the Arduino wouldn't be able to handle all the current.

I actually built a board (I'm pretty sure it was an AT Mega) with every single exterior light controlled by the Arduino pins. I'm almost certain it wouldn't survive all the lights, even without the headlights.
Goal of the project is top secret but what I ended up with would act the same with LED or incandescent bulbs.

Sorry, to derail a little.

Thats why they invented relays

 

[First opel 1981]

Thats why they invented relays

Relays were first. It's actually funny how SS relays work.