My LCD screen project, boost, WBO2, Knock, etc

[Omega-Tron]

The site works for me too now. I couldn't access it using the lcdboostcontroller.com link the other day though, I had to use http://www.lcdbc.xp3.biz directly.

Now I'm all confused. Maybe I misunderstood what the external pressure sensor does or is used for. I am referring to the LCDBC Version 2 User Manual. http://lcdbc.xp3.biz/Version2UserManual.pdf Specifically this part:

PSI Sensor= Intrnl. Uses internal pressure sensor 0.0psi to 36.3psi, vacuum is not measured.
PSI Sensor= Gr4Bar. Uses external 4 BAR greddy pressure sensor (vacuum to 43.5psi). Tested to work with the original Greddy pressures sensor, and black plastic clone version too. The silver metal clone version does not work properly.
PSI Sensor= GM3Bar. Uses external 3 BAR GM pressure sensor (vacuum to 32psi). Untested.

[2fnloud]

yeah, I saw that too (now) but it begs the question, how does that tie-in with the black box? And second it knowing your vacuum that important?

[Omega-Tron]

yeah, I saw that too (now) but it begs the question, how does that tie-in with the black box? And second it knowing your vacuum that important?

No, I hear ya on knowing vacuum. I consider it an added "benefit" of using the external sensor. I basically wanted to use the external pressure sensor just so I didn't have to run the thick vacuum line through the firewall and worry about cutting or kinking it, etc. Just a personal preference. And after this I may just run the line to the internal pressure sensor and be done, lol. In the LCDBC installation manual on page 6 it references where the 3 pin connector for the external pressure sensor is; if that's what you mean.

[2fnloud]

I feel like an idiot now....thank you

[2fnloud]

I wonder if this one would work:

Amazon.com: OMNI-Power Mitsubishi EVO and Eclipse Plug and Play 4 Bar MAP Sensor: Automotive

[Omega-Tron]

I feel like an idiot now....thank you

Any time I can help!

[2fnloud]

Any time I can help!

Help me feel like an idiot...thanks

[green-lantern]

I've spent a couple weeks researching on how to generate video for owners with double din GPS units.

1. Raspberry pi - Cheap, lots of memory, but has these faults: won't work in cold weather, SD card linux will go corrupt if not properly shut down, long time to boot up.
2. Parallax Propeller microprocessor - can generate NTSC video easily, very low memory, funky SPIN programming language, boots up instantly.
3. PIC32 microprocessor - the cheapest of the bunch, can generate color NTSC video by using a funky crystal speed that matches NTSC, boots up instantly.

I tried option #2, but my Parallax microprocessor doesn't communicate. I don't have any spare 5 Mhz crystals, so I'm waiting for replacement part.

I will try out option #3, just gotta wait on that funky crystal speed (couple week wait from China). The PIC32 is not designed to handle NTSC video, but with clever programming, someone was able to do it. Here's an example of Pac-Man they did:

http://youtu.be/_yp2rxqsk5s?t=1m10s

you are the fucking man, you know that?

[BlackStealth]

By the way, the GM 3 bar sensor has been tested to work fine with the LCDBC. The 4 bar real Greddy pressure sensor is pricey approx $100. The greddy clones are around $30-$35. The black version works, whereas the silver version does not give a stable reading (wanders about 2 to 4 psi, so that is why I do not recommend that one). The Omni pressure sensor has been reported to work well also, but I find that a bit pricey.

I picked up an external pressure sensor (-14psi to 30psi) on ebay to verify if it works with the LCDBC to recommend to people. Good news it works great, but bad news they're no longer available on ebay. lol. If anyone wants it, contact me. Cost is $40+shipping, comes with harness.

Yeah, the lcdboostcontroller.com website has been down for some time -- it was never mine to begin with. The new website is :http://www.lcdbc.xp3.biz as already mentioned.

As for the double din displays with NTSC video input, here's what I've discovered:

Parallax - I suspect this processor of mine is fried, as it only gets hot and doesn't do anything. Not entirely sure how it got broken because I had it working before, put it away, and when I came back to it, it's dead. There wasn't anything hooked up to it other than a 3.3v serial interface and EEPROM. I'm gonna skip this for now.

PIC32 - Doesn't work reliably. Apparently Japanese NTSC differs just slightly from NA NTSC. Skip this one, as modifying will be time consuming (assembly language).

Arduino - I tried all the color versions out there. Only one version works okay, however I'm just not pleased with the NTSC interlace flicker displayed on the double din screen. The other versions would not display on the double screen, but worked okay on a real TV. My guess is that non-interlaced displays will not work on double dins.

Uzebox project - This one looks interesting, but I'm nervous that it needs to overclocked (20mhz to 28mhz). I've read on the forums about 15% of the processors will not overclock.
I ordered the display conversion IC from china, should take a month to arrive.

[2fnloud]

I really like the claimed accuracy of the Omni sensor, but looks like you need a remote mounting block in order to use one. Do ye have anything late that?