FreeGauge?

[Fred]

Nice :-)

I spotted one little problem though, your engine should be redlining at 8k not 6k ;-)

[Delta]

Hahaha, the display can only show up to 9999 so I though 6500 might be a reasonable value to start with, it counts up to 7500 to prove that it will detect going over the limit and light up the right most decimal point. The range is defined in software atm so can be set from 0-9999 if you like or anywhere in between.

I've only put 16 leds on for 2 reasons

1. I'm hoping I can run several setups, one of which will only be able to have 16 leds and I wanted to see what that range looked like.
2. I'm running out of breadboard space.

Final Tacho will probably have 4 digits and 32 leds (the max that a MAX2719 can drive), Shiftlight, peak recall (while on)
Final Spedo will probably have 3 digits, 32 leds, Small LCD/vac flouro. Ability to change between kph/mph with button, and odo/trip.

1st general gauge I'm thinking will be twin 2 digit display, 2 x 16 led, push button for each display for mode, twin warning lights and twin RGB led for showing what gauge is showing what. These should be good for Boost/Vac, Voltage, Throttle possition, Fuel, Oil pressure in bar / kg/cm2.

2nd general gauge will be 3 digit, 24-32 led, warning light, push button for mode, RGB led for showing mode. These should be good for displaying anything - AFR, Fuel, Boost/Vac, Voltage, Temp, Oil pressure in any units etc etc.

Tacho + Speedo + 2x Type 1 + 2x type 2 is a pretty full dash. Could display - Tacho, Speed, Temp, AFR, Voltage, Vac/Boost, Oil pressure, Fuel as standard.

[Delta]

This project has gone on hold until either -

1. FreeEMS is developed into a working unit - ie testing is over and commercial units are shipping
2. My gearbox controller is completed
3. My PhD is completed.

[Fred]

1. FreeEMS is developed into a working unit - ie testing is over and commercial units are shipping

You shouldn't hold your breath on that one. Given that it would be a third party doing that there is no guarantee it will happen at all. That isn't the goal of the project anyway, I'd be happier if it didn't happen, however I know it will sooner or later and overall if done right that is a good thing.

Fred.

[Delta]

Ok, perhaps I use the term "commercial units" a little loosely, basically I mean - pcbs for a working revision are available and perhaps parts kits or whatever are available. It doesn't have to be a proper fully boxed unit ready to run. More that less focus will be on testing everything (which takes up time) and the focus can shift a little to side projects that accessorise or expand the main unit.

[Fred]

Fair enough, that makes perfect sense :-)

[jharvey]

I've had a bit of an idea that I haven't presented because it might take folks off topic. Well I guess I'll do it anyhow. I'm sure you've heard of DLP for projectors. I don't see why one couldn't use a DLP chip with a laser pointer as your light source. Reflect the laser off the DLP and onto a white board, or similar. Then you can draw what ever display you want.

Appears someone with money is working this avenue. Check this link.

http://www.dlp.com/

I see a dev board, is available as well as TI is
pushing for DLP in a cell phone. So I'd expect
this stuff to remain low cost, and compact.

TI's DLP dev board is about $350 from here

http://dkc1.digikey.com/us/mkt/pico.html

TI recommends using it with the Beagleboard that
costs about $150 from here

http://beagleboard.org/

[Delta]

I've had a bit of an idea that I haven't presented because it might take folks off topic. Well I guess I'll do it anyhow. I'm sure you've heard of DLP for projectors. I don't see why one couldn't use a DLP chip with a laser pointer as your light source. Reflect the laser off the DLP and onto a white board, or similar. Then you can draw what ever display you want.

Appears someone with money is working this avenue. Check this link.

http://www.dlp.com/

I see a dev board, is available as well as TI is
pushing for DLP in a cell phone. So I'd expect
this stuff to remain low cost, and compact.

TI's DLP dev board is about $350 from here

http://dkc1.digikey.com/us/mkt/pico.html

TI recommends using it with the Beagleboard that
costs about $150 from here

http://beagleboard.org/

Interesting, I'll take a look at that