[Diy_efi] Data logging..

[Antti Lehtonen]

On 11.05.2002 at 01:36 Perry Harrington wrote:

>I'm working on such a product.

	Sounds good..
>
>The production version will support 8 analog channels (1 dedicated
>to battery voltage), tach, and vehicle speed.  I have bench tested
>the unit and get about 134 samples a second at 38400 baud.

	Even better.. But is there any for injector opening
	time? As far as I can count: rmp, speed, maf, map,
	intake temp, throttle position, injector open time, and
	one more to spare, I don't see any point to monitor
	constant 12v from battery, I personally use only working
	batteries ;)

>The final product should give ~100 samples per second with 10bit
>ADC resolution.
>
>I have built one prototype (with 4 ADC channels) and am working on
>the head unit software (a display device which shows the data in
>realtime).

	This is just what we need..


>I plan on selling the setup for about $750US.  I will also sell the
>datalogging module separately.

	Well this is the place where everything comes crashing down,
	extensive surfing has given me so idea what things costs, 
	for that kind of money I can go to tag heur or some other
	professional, (etas) and use their ready products, take a
	look at this thing:
http://www.bb-europe.com/product.asp?dept%5Fid=119&sku=UD128A8D
	I would pay 100-200$ for your product because this seems to
	do what I want 1/3 of the price..

>What's your timeframe for needing such a product?
>

	That's hard part too, this season (summer, short at our part of the world)


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