rusefi.com

I think there is a third inquiry / request. A push button to highlight stuff in the log.

2. Hit button - Panic/shutdown. Something like this is required on monster trucks that are preforming a show. The kill switch is controlled by any one of three people. If the driver gets knocked out any one of the staff members can press the button and kill the engine before the truck makes it to t...

This rough simulation includes a pinch of noise.

I found the very rough VR simulation. Of course a better wave form can be obtained if you add more data points to the PWL.

Some comments -- Yes you can talk other ECU's here, even MS. However please do it in an "on topic" forum post. Is your ECU open source, can you share, several of us like to see other approaches. -- If you tune with a set phase shift, do you really care about the phase shift? I think your t...

Calibrate your temp sensor? Your question is vague.

Ah, the JP1 thing. Yeah we got ride of that after some testing.

After the op-amp with a 5V input, you should see something more like 2.5V. Can you measure AV5 at the stm32 pin? What voltage do you get there?

He asks if mine runs..... It probably would have a couple years ago. It's just a VIN to me. A project some day, and it has the little bits which I can transfer over. Things like tail lights, fiberglass top, windshield, etc. For now it's just yard art. I plan a tube frame, new tub, etc. I do not know...

I have a 1995 YJ, 4cyl which I bought for the VIN. Do you have any suggestions? I dream of making it a direct injection diesel, with tube frame and new tub. What are your dreams for yours?

Is your mostly stock?

PWM / DAC should be before the opamp.

Perhaps vref source could be optional PWM / DAC input? I know the goal is no firmware, but having a software adjustable threshold is likely a desirable feature. These PWM / DAC are handy as you can PWM digitally or if you have a DAC you can just DAC the thing. This would allow for an adjustable thre...

LCR tweezers are handy
https://www.seeedstudio.com/Mini-Digital-Tweezers-DT71-p-4696.html

I guess error check the temperature profile and trigger an error. Aka if engine is not warm after 10 minutes then limit power. Frozen block, loss of coolant, broken sensor can cause bad temp readings. Limit power to limit the damage. I guess the same for a stuck thermostat. Wrong profile could cause...

Hmmmm if etb claims 0% yet MAF = WOT then limit fuel to 10% or ignore high sensor and only use lower power sensor or do something like that.

DB37 = evil.

How much lower cost is this than a TLE8888? I see thru hole, so that's expensive. STM32 with TLE8888 is about all you need, and it's reasonably low cost.

Here are some notes about how I merged two kicad projects (both schematics and PCB) in KC5. -- Copy one project as a startting point, AKA PT2000 --> TestMergeProject -- Delete extra files, .csv, gerbers, .net, etc. Modify files like knownissues.txt -- Rename core files AKA Common_Rail_PT2000.XXX -->...

-- If rpm rate of change is bad 5krpm to 0rpm in one rotation then cut fuel pump. -- if over temp then limit hp or do something to protect the engine -- if speed density sensor failure, then switch to alpha-n or average two fuel algos or something like that. -- if unreasonably air temp then ??? -- i...

Looks like jlc has shift registers.
https://jlcpcb.com/parts/componentSearch?searchTxt=Shift%20Registers

How about 36 dip switches connected to a shift register so you can emulate a 36-1 wheel? 100% hardware and emulates a common crank pattern.

Doesn't the discovery have a headphone jack?

This is where it used to be, see the history on this page, it has a honeywell app note, spreadsheet, and many details about VR's.
https://rusefi.com/wiki/index.php?title=Manual:Hardware_Trigger&oldid=2806#VR_lower_level_details.2C_formulas.2C_app_notes.2C_etc

How do you search the new wiki for content? I know there was a honeywell app note and spreadsheet that was on the old wiki, it also detailed many specs of the typical VR sensor. I used to search the old forum for "300V VR" but that does not work any more. How do I find it on the new wiki?

Pictures can be uploaded to the rusefi forum. You do not need the external service to host the pictures.

Do you have a simulation for this? I'm not fully following how parts of it work. I'm concerned that it would be weak against common mode noise. Can it be adjusted to use the opamp as a differential input?

Would dedicated STM32 that is independent of rusEFI firmware an OK solution, or does that also cross the no firmware solution? AKA dedicated chip, instead of integrated solution.

This is an article about a tool that helps with searching JLC parts. https://hackaday.com/2020/10/11/improved-part-searches-for-jlcpcb-parts/ The general process is that you browse to the below page, you click the update in the top, then wait for a while to download and update and add the components...

Posted in April of 2020
https://www.electronics-lab.com/convert-easyeda-files-kicad-just-one-click/

These are snippets found in the below link. Of course if they said it on the internet, it must be true. https://www.theglobeandmail.com/globe-drive/culture/commentary/the-problem-with-ethanol-in-gasoline/article29103634/ Because it is an alcohol, ethanol dries out the rubber components in a fuel sys...

The MRE is very small as is. The TLE8888 chip is fairly small. Sure we could save some space with different less capable chips, but not very much. Perhaps the size of your thumb nail. Why is MRE to large? My lawn mower and snow blower wheel's are not going to buckle under the weight of MRE. Perhaps ...