WB02 w/LCD display
#1
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WB02 w/LCD display
Has anybody here opted to build the WB02 controller with the Amtel AT90S8535 board and LCD?
I'm considering this and would like some opinions...
This might be out of my league but sure looks trick
I'm considering this and would like some opinions...
This might be out of my league but sure looks trick
#2
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Car: 1984 Corvette
Engine: Turbo 350
Transmission: 4L80E with TCI T-Com
It looks cool but nothing beats a LED 'moving dot' if you want functionality. An LCD display is nowhere near the update speed of a LED.
This is a board a I made.
http://jobywbmeter.webhop.net
It is a small moving dot.
My engine is missing over 3000 RPM under load because of a bad spark plug. When the engine starts missing the small dot becomes 10-LED's wide. The sensor is actually seeing the exhaust going rich and lean when the unburnt gasses from that missing cylinder passes. The LED is fast enough to show that but an LCD is not.
This is a board a I made.
http://jobywbmeter.webhop.net
It is a small moving dot.
My engine is missing over 3000 RPM under load because of a bad spark plug. When the engine starts missing the small dot becomes 10-LED's wide. The sensor is actually seeing the exhaust going rich and lean when the unburnt gasses from that missing cylinder passes. The LED is fast enough to show that but an LCD is not.
#3
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Car: 91 Red Sled
Axle/Gears: 10bolt Richmond 3.73 Torsen
Joby, that looks awesome. You're right about refresh rate. It's very important. When I built my nb o2 gauge I made certain the update speed was fast. It's so fast that when the tranny shifts I can see the engine go lean for a split second. When in closed loop the gauge just flickers up and down like Kitt talking from knight rider.
Anybody have any source code for running the 8746 ecm in closed loop with a wb o2?
Anybody have any source code for running the 8746 ecm in closed loop with a wb o2?
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Car: 1984 Corvette
Engine: Turbo 350
Transmission: 4L80E with TCI T-Com
Using that CNC milling machine to make boards works, but it is very time consuming.
I could have some boards professionally made but to keep the cost down for each board I would have to order quite a few. I have been working on a new board layout for this using a cad software for PCB's.
I have managed to shrink the pcb size to 1.3 X 3.9 inches. The three larger dots on each side are mounting holes.
I also removed all jumpers and replaced two resistors with potentioneters. With one potentioneter you calibrate the range on the rich side and the other calibrate the range on the lean side.
Would you be interested in the board only, board and components, or pre-built units?
EDIT: Took some pictures of the protorype board installed in my 1984 Corvette.
I could have some boards professionally made but to keep the cost down for each board I would have to order quite a few. I have been working on a new board layout for this using a cad software for PCB's.
I have managed to shrink the pcb size to 1.3 X 3.9 inches. The three larger dots on each side are mounting holes.
I also removed all jumpers and replaced two resistors with potentioneters. With one potentioneter you calibrate the range on the rich side and the other calibrate the range on the lean side.
Would you be interested in the board only, board and components, or pre-built units?
EDIT: Took some pictures of the protorype board installed in my 1984 Corvette.
Last edited by JoBy; 06-14-2003 at 02:55 PM.
#6
I located all the parts but I am open to whatever you could offer. I just though I would get a board from Radio Shack next week and get some parts on order since I finally got the WB in. Now I need something to monitor it. Let me now, as I am interested. If you plan on doing some ordering of parts I would gladly chip in.
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Car: 1984 Corvette
Engine: Turbo 350
Transmission: 4L80E with TCI T-Com
The boards won't be ready for some time so you could make your own if you are in a hurry.
This is the scematics:
http://jobyteknik.homeip.net/corvett...led_lambda.GIF
This is the scematics:
http://jobyteknik.homeip.net/corvett...led_lambda.GIF
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#9
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Originally posted by JoBy
Using that CNC milling machine to make boards works, but it is very time consuming.
I could have some boards professionally made but to keep the cost down for each board I would have to order quite a few. I have been working on a new board layout for this using a cad software for PCB's.
Using that CNC milling machine to make boards works, but it is very time consuming.
I could have some boards professionally made but to keep the cost down for each board I would have to order quite a few. I have been working on a new board layout for this using a cad software for PCB's.
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That board looks great! I am interested in a board or kit or whatever.
I just started my WB02 project. I have the circuit board and ordered the sensor today.
Please keep us posted!
Thanks, Greg
I just started my WB02 project. I have the circuit board and ordered the sensor today.
Please keep us posted!
Thanks, Greg
#14
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Car: 1984 Corvette
Engine: Turbo 350
Transmission: 4L80E with TCI T-Com
This is what it looks like with the new board and the calibration potentiometers.
I have all the parts to make a few boards now.
I have all the parts to make a few boards now.
#15
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Car: 1988 Monte Carlo SS
Engine: 5.7L TPI
Transmission: T5
Axle/Gears: 3.73
Re: WB02 w/LCD display
Originally posted by tpi_roc
Has anybody here opted to build the WB02 controller with the Amtel AT90S8535 board and LCD?
I'm considering this and would like some opinions...
Has anybody here opted to build the WB02 controller with the Amtel AT90S8535 board and LCD?
I'm considering this and would like some opinions...
#16
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Car: 1988 Monte Carlo SS
Engine: 5.7L TPI
Transmission: T5
Axle/Gears: 3.73
Originally posted by JoBy
The LED is fast enough to show that but an LCD is not.
The LED is fast enough to show that but an LCD is not.
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