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Data logging from a standalone wideband
mark chandler - 27/11/13 at 06:31 PM

Hello

My DB7 has a Zytec ECU, this poses a problem as not OB2 compliant and to extract any data you need bespoke MSDOS software and a dongle.... Not a lot of chance getting that

I want to datalog the AFR, so am looking to buy a simple wideband, these all tend to have an analogue output but I really need to capture rpm, TPS Map and AFR.

So does anyone know of anything that I can plug various voltage based inputs into, then push to a smartphone, blue tooth would be favourite or maybe has a serial or USB output that I could use with a laptop.

Thanks Mark


gremlin1234 - 27/11/13 at 08:59 PM

one way is to use the 'sound card' input, (with some buffering of course)

else raspberry pi may be the way to go
http://en.wikipedia.org/wiki/Raspberry_Pi


coyoteboy - 28/11/13 at 10:21 PM

Sounds card would need some mods, they have capacitive decoupling from DC.

Don't think the Pi has any ADCs on it so you'd need an add-on card and some code. Might as well write a specific logger with a PIC for that much effort Or hook up a megasquirt as a piggyback as I did when I first bought it, to characterise the stock ECU.

[Edited on 28/11/13 by coyoteboy]