Source code for Yaris Tachometer

[CtrlAltDefeat]

Originally Posted by metalshark

The biggest problem is the BS2 chip costs $50. I need to re-prototype this project using the new Parallax Propeller chip since they just dropped the cost to $7.95.

yes, $50 for just the chip would be way too much, an aftermarket tach would cost less. The Propeller version, however, sounds right up my alley... I think it would look good with rectangle or square LEDs (or rectangle shaped covers) closely set together. It would be awesome to somehow incorporate it into the gauge cluster...

[metalshark]

Originally Posted by CtrlAltDefeat

yes, $50 for just the chip would be way too much, an aftermarket tach would cost less. The Propeller version, however, sounds right up my alley... I think it would look good with rectangle or square LEDs (or rectangle shaped covers) closely set together. It would be awesome to somehow incorporate it into the gauge cluster...

I've figured out how to do that but people with more experience than I already know the cost of this can be shrunk a lot by just going to a cheaper microprocessor. When I get two of these beta test units out into the field I'd rather just public domain all the technical data to a thread/sticky on Yaris-World.com and let the hobby members grow the project. A processor in the BS2 class can be had for about $5 and support up to 4 digital readouts with ease. One like the BS2p40 can support up to 8 digital readouts or even more with serial display panel. At that point its getting into the full dash board display area. This is the type thing the folks at scan-gage are good at. The Parallax Propeller can support a small video display complete with graphics.

[metalshark]

Originally Posted by CtrlAltDefeat

yes, $50 for just the chip would be way too much, an aftermarket tach would cost less. The Propeller version, however, sounds right up my alley... I think it would look good with rectangle or square LEDs (or rectangle shaped covers) closely set together. It would be awesome to somehow incorporate it into the gauge cluster...

Another Yaris-World member is incorporating the display into the steering wheel on a beta test unit. I'm porting the application over to a better, cheaper uP as suggested by a member that has more experience than I. With the reduced hours at work, I'm starting to make better progress on the hobby.