paulr33
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Posts posted by paulr33
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About to order oil temp, oil pressure and EGT sensors for the vipec and also waiting on my 2.7m extension cable so I can have the arduino in my glovebox and the screen on the dash
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Yeah in comparison it looks heaps better than the Apexi RSM. The RSM runs a Vacuum fluroscent display and it's basically dot matrix. The uLCD32 is really sharp and bright. At night is amazing. The iPhone video capture and YouTube format really dull down quality of the display in the video
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some more testing, the green square turning on is for when 02 closed loop via wideband is running (pretty nifty)
INJ DUTY not working but i know why, so an easy fix. stand should arrive this week -
Yeah the arduino has onboard SD card that I can write to but was wondering if there was a way to send the vipec global ECU stats across. Don't worry was just pie in the sky thinking
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Is there any way to transmit the "statistics" that the ECU records , I.e # of engine starts, # of fuel cuts
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Yeah I found quickly some things were pointless and others were more important hence the number of changes. Still need to document the whole build and finalise my new sensors and cabling so that the arduino can sit in the glovebox and my display sits on a dash mounted stand
very happy with it so far and glad to have CANBUS working on the vipec. Once the protocol is working and we understand how sensors come across the stream the possibilities are endless for what can be shown and how to represent it. For example I want a light to come on when closed loop is actively trimming fuel and I wanted oil pressure in kgcm2 not KPA. These are all possible
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these guys will do you a loom adaptor, better than mangled wires
they've done vipec before and have certainly done RB26
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did a first test run yesterday, the update rate is pretty good and thats updating each value every time on the screen even if it doesnt change. i found TPS was pretty useless and gear wasnt quite right as i need to finish 5th and 6th gear calibration. i found the stand too big and i couldnt see the values properly on the angle. but the reliablity was perfect with the CAN protocol working as needed and my code being stable - theres no error checking in it.
i found a $3.95 plastic case at jaycar that magically fits so ill ditch the 4d display stand and use this instead.
have also remodelled the display to suit more meaningful sensors until i order EGT, OIL Temp and Oil pressure.the green square above 02 CL will come when vipec is running closed loop via wideband so it should cycle this light on at light cruise.
ill order another apexi stand as this fits my requirements perfectly and it should match the existing dash setup
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some issues to work through, but its coming along =)
rest of the pics for anyone interested
http://paulr33.com/evo/ecu/can-display/page_01.htm
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Ok no problems and thanks for clarification, I will be using an EGT controller and sensor and run the analogue 0-5v output from the EGT controller to the vipec AN Volt 6
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hi support, one question, i want to pass EGT which i will have hooked upto AN Volt 6. will the output from this parameter in CANBUS be the actual voltage or the caluclated EGT value? I think i simply select AN Volt 6 and connect the relevant sensor and then choose Calc Table 5 for example to dial in the LOG scaling for EGT range.
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hi all, i have it all working end to end, now just some final code to change the numbers on my display. very excited and cant wait to have it all working for final demo. very excited. only issue i have is i dont have oil temp, oil pressure or exhaust temp sensors to the vipec yet so they wont show values just yet
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I think I may have it working on one shield, update soon
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No worries. I'm using arduino Uno and version 2 of their 4d display shield. The screen is the uLCD32-PT
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Both shields use serial 0
unless someone can help me so I can make the 4d display use other pins I need to use two arduinos which I don't mind
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Ive got the final piece of the puzzle figured out so now i just need to do some good coding to handle the string data between the two units and capture some more test CAN packets
then i should be ok to handle data between the two and write CAN() values on the display. the problem is ill have to run two ardunio's in my glovebox and some messy wiring which sucks but i should be able to find some cases to put them in and seal it all upthanks heaps for the additional info and the CAN test tool helps me map it all out without sitting in the garage reading packets all night =)
hopefully i can do a real demo soon
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just looking at the data model, within the CAN packets i get hex values, but for things like AFR and oil pressure there is decimal values, i.e 4.4 bar oil pressure is very different to 4 or 5
how are decimal values managed inside the CAN hex values? The vipec documentation simply states RAW x 0.01?
here is quick video demo of the design. obviously random() values used etc
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Haven't forgotten and still working on it, just a few design things to work through. I can show more of the design but won't have working release for a while yet
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slow progress for those sports fans playing at home, but at least i know how to code on the graphics library, very quick hack
another shot, showing the size
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my screen display has been shipped so should have it in a day or so. the display has a pretty powerful graphics library IDE system and i can pretty much do whatever within the code to display gauges, bar graphs, digit displays etc so the possibilities is endless. the one issue i have is screen size real estate as the display is 3.2" because i didnt want a mega display panel on my evo dash. ill do a full detailed write up including parts and part #'s once i have working
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here are the values i am interested in and how i think it will map out, the benefit of the ardunio is that we can do whatever we like with the data, in any format. for example, i convert oil pressure to kgCM2 as i prefer it in that over KPA
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ghetto as packet disassembly, but hopefully it helps explain it for some people (and hopefully my theory is correct)
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ok i have canbus loopback working with this new shield, worked first shot, not a single change required. this is very positive. ill try on the car with vipec tomorrow
DIY vipec display
in ViPEC V Series
Posted
managed to get an extension cable made up succesfully using 3 x PC USB Dupont cables which are a 5 pin flat cable - the exact same type used by the arduino display adapter shield to the display screen so i have 2.7m of 5 pin loom cable shielded which is plenty long enough to get behind the evo dash and into the glovebox. tested and works well. new sensors next