Speeduino is now on Github Sponsors (Rather than Patreon): https://github.com/sponsors/noisymime
For any add-on boards such as VR conditioners, optos and OEM interface boards
By Old Grey
#9533
Not much work has been done with opto boards simply because nearly nobody runs fuel inj only.

dazq has his running, but as far as I know no other ones have been run/tested.

EDIT - NEW DOWNLOAD PAGE 3 -
Last edited by Old Grey on Fri Jul 08, 2016 4:30 pm, edited 4 times in total.
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By PSIG
#9534
The opto boards were designed to be the 'standard' input, as they are suitable for all signals except VR.

David
By NickZ
#9536
Im running my own opto boards on 3 of my Speeduinos in cars. I use them just as a isolator, but im only using 5v input pulse, but better safe than sorry.
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By PSIG
#9567
Most of the schematics and values are in the Trigger Input thread. There are a couple others specific to inputs scattered about (JBPerf replacement, Golf VR4 thread, etc.), including the opto and MAX99xx schematics in the Speeduino code download. It would be helpful to consolidate and summarize them in one location. Is that what you're working on?
Image
David
By NickZ
#9569
Screen Shot 2016-06-26 at 10.09.28 AM.png
Screen Shot 2016-06-26 at 10.09.28 AM.png (263.61 KiB) Viewed 3317 times
(16.45 KiB) Downloaded 102 times
This handles upto 14v happly, not for use with coil side ignition, you would have to beef up the input resistor for that.
By Old Grey
#9607
PSIG wrote:Most of the schematics and values are in the Trigger Input thread. There are a couple others specific to inputs scattered about (JBPerf replacement, Golf VR4 thread, etc.), including the opto and MAX99xx schematics in the Speeduino code download. It would be helpful to consolidate and summarize them in one location. Is that what you're working on?
Image
David
Exactly. I put in as many values as I could find - I went through the 3 threads - in the Sch of my Fritz but the different sources are different and some aren't complete, hence why I wanted to consolidate it for prosperity.

Thanks NickZ.
Last edited by Old Grey on Fri Aug 19, 2016 11:01 pm, edited 2 times in total.
By dazq
#9609
You could do the pcb to support both diagrans as follows
Nicks c4 and c2 is an option onto mine if you wanted
And if you made a link between r2 and c3/pin 1 this could be replaced by my zener if you chose?
Obviously values can differ as long as you use a pin spacing big enough to support the largest packaged device.
By Old Grey
#9610
New download with NickZ

I moved things around so similar parts are in the same place for conformity, and they are kind-of pretty similar.



EDIT _ NEW DOWNLOAD PAGE 3 -.
Last edited by Old Grey on Fri Jul 08, 2016 4:31 pm, edited 3 times in total.
By NickZ
#9622
My schematics are ugly, Im a messy person.
i only look at the end result the board.
20160627_181740.jpg
20160627_181740.jpg (365.84 KiB) Viewed 3280 times
I don't have an assembled unit to take a picture.
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