Auto MPG project using Propeller(boards available)
Erik Friesen
Posts: 1,071
I have built a few of these for some people. I haven't had time to do much with it lately, but I have had one in my van for a couple years or so.
I built about 5 or 6 using the first boards I bought, but then in an office cleaning project, the rest of my boards disappeared one day, to be found months later sifting through the burn pile.
The picture shown is one I built that uses a gps receiver(Parallax or any that puts out 4800) to show direction and altitude. There is a probe that goes out in front for the temperature. Two sensor connections are required, one to the fuel injector(Gas only), and one to the vehicle speed sensor. Fuel used accuracy is typically around 1/4 gallon per tank. The trip computer figures, mpg, mph, dte, volts, Instant mpg,fuel used, rpm, gph, and last oil change.
The ones I built used primarily surface mount, but I suppose It could be done using some through hole parts. There are some inexpensive new lcd's from mouser that can be attached directly to the backside of a pcb. This would not allow any through hole components then.
I though I'd post this and see if there would be any interest in something like a kit, or just a bare pcb. I would post my source code.
You can pm or post if interested.
Post Edited (Erik Friesen) : 5/30/2009 3:21:36 PM GMT
I built about 5 or 6 using the first boards I bought, but then in an office cleaning project, the rest of my boards disappeared one day, to be found months later sifting through the burn pile.
The picture shown is one I built that uses a gps receiver(Parallax or any that puts out 4800) to show direction and altitude. There is a probe that goes out in front for the temperature. Two sensor connections are required, one to the fuel injector(Gas only), and one to the vehicle speed sensor. Fuel used accuracy is typically around 1/4 gallon per tank. The trip computer figures, mpg, mph, dte, volts, Instant mpg,fuel used, rpm, gph, and last oil change.
The ones I built used primarily surface mount, but I suppose It could be done using some through hole parts. There are some inexpensive new lcd's from mouser that can be attached directly to the backside of a pcb. This would not allow any through hole components then.
I though I'd post this and see if there would be any interest in something like a kit, or just a bare pcb. I would post my source code.
You can pm or post if interested.
Post Edited (Erik Friesen) : 5/30/2009 3:21:36 PM GMT
1200 x 800 - 91K
Comments
So... if you are planning to go to the nearly official West Coast Propeller Expo... we have a real deal.
I buy it... you promise to show me how to hook it up. My car has no warranties left and my daughter just wrecked it ... again.
So, I'm not worried about the car.
Rich
How much surface mount can you all handle? 0805 sizes?
This is the lcd I used last time
Displaytech S64128M FC BW-3 www.displaytech-us.com/products/cogmodules.php
I'd like around $15 for these, and I will give a list of materials and my source code with it.
Post Edited (Erik Friesen) : 5/30/2009 3:27:26 PM GMT
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Timothy D. Swieter, E.I.
www.brilldea.com - Prop Blade, LED Painter, RGB LEDs, 3.0" LCD Composite video display, eProto for SunSPOT
www.tdswieter.com
Count me in. I have been playing with a MPGuino (http://combustory.com/wiki/index.php/MPGuino), with thoughts of moving that project to the Propeller, but it looks like you beat me to it. I would like to know more, such as the total cost.
- Mark