rusefi.com

Lol ! I look like a teenager ? I am 35, and I don't think I am quick. I just discovered the PCB tools.

I go to work but I can't see my friends because of lockdown So I have much time.

Okay :D Thanks, There is some H7 without dual core and with a lot of ram. I see that microrusefi come back from F7 to F4, i don't know why, but the ram is the same, so the frequency is certainly useless. The power of a stm looks completely crazy compared to others. And the frequency of an engine is ...

That's ordered. I pay for 2 assembled PCB with leadfree and TG155. There isn't a lot of options with smt assembling :cry: :cry: I discovered that the 2 layers of the middle are only 0.5OZ, I will think different if I do others boards. That cost me 59€, with delivery in 2 weeks, but I don't know if I...

As interesting as it sounds, I have to agree with Andrey that it probably isn't feasible for us right now. The DMA controllers are already both quite loaded - 3 ADCs, UART, SPI (SD card logging!). I just don't think it's necessary. The jitter requirements of an engine are actually pretty generous. ...

Finally, i change a lot of things, I add 5V protection on the USB, and some resistors before mosfet. I add the max chip for K probe, and 2 other high side. A friend of mine, who help me for my boost gauge, says that I need an analog out, so I put a TLV2372 in through hole "revision", with ...

Okay ! I will receive a cheap 48pins ebay case, look a bit like the microrusefi case, but bigger and in abs. I don't have it for now but, I order it for the plugs, same as microrusefi. That allow me to try it, but I don't want to focus on an ECU for now, I use basic parts, and the STMs in basic aren...

Mmmm I show the schematic to an engineer friend, and he tolds me that I am an ass. That I must put overvoltage protection on usb and canbus, and pull down resistor on mosfet.

I finally find the MAX31855 on JLC <3
It's a extended part, but look easy to install. There is a little place on the left of the stm.

Here it is.

I should have let more room for the mosfet... But some of them are for lights on dash

The part catalog of JLCPCB can be find here :
https://jlcpcb.com/parts

I see in the signature of "OrchardPerformance" that "Now keeping MRE and Proteus in stock in the UK, PM or slack for details."

Maybe you can see with him.

Hello, I believe that the board is ready for testing <3 I will wait a little before ordering, I will think more about it. I wanted to put an EGT sensor in the middle on the board but I am a little bored and limited by routing. I don't know if it will be fine, I will see. The board is for GPIO purpos...

It will be a great pleasure to be a beta tester, I know it isn't free :P I am in France, but you can send in a letter, no ? I haven't LSU 4.9 for now, but I will. I don't know if I will give report rapidly. Sorry, I don't look at the datasheet :P And I always look for cost effiency for 2 or 5 boards...

Really nice !!! But I understand anything :lol: :lol: :lol: The WB 4.9 has 5 or 6 wires, the 6th is a resistance for calibration, don't always here, because of the same value on 4.9. And in the 5, there is 2 for the heater, one for +12v, and one for GND. On your schematics, I don't see +12v, so I be...

For information, here is the schematic for now, there is not a lot of components, and certainly will not. But I try to understand the TPIC8101, it needs an external crystal from what I understand. I already ordered 5 TPIC8101, I wish I am able to solder it... I will also take a look at the wideband ...

You are right ! And normally, at cold, the IAT and CLT have the same values. Personnaly, i remove the sparks and try them with the bench. I can see if the dwell time is fine, if the order is fine and IF they work properly. With injectors, you can feel and hear them more easily. On my car, I have a f...

In fact, I change my mind about Full assembled and I go for full "basic" I was thinking that the extended price was for 1 kind, but no, if you put 2 of them on a board, that make 12$ !! I finally go through hole for some parts. I can solder it. I hadn't lot of time for the PCB, but I am wo...

Hello,

I have an other question, I believe that I am right but not sure.

Does an AT input can detect ground contact ?

My clutch pedal goes to the ground, I just want to be sure if there is no risks. (maybe, must I plug a resistor before ? )

Thanks,

If you want a 0-5v signal to dash, you have to use a high-side output. If you want to control the ground, you have to use a low-side output. The microrusefi, for exemple, allow a 12v output, on the high side via jumper, perfect for tacho out. image.png But you have to pay attention to the power, hig...

You can use one coil by cylinder and go wasted, no problem, some manufacturers are doing this with COP.

Have you a picture of what you are talking about for the sensor ? My english is very bad

If you put a sensor on the distributor, you can go full sequential.

Hello, I believe it's a Volkswagen 1J0973723 plug, with VR build by bosch. Looks like : https://fr.aliexpress.com/item/32975515043.html?src=google&albch=shopping&acnt=248-630-5778&isdl=y&slnk=&plac=&mtctp=&albbt=Gploogle_7_shopping&aff_atform=google&aff_short_key=...

The dificulty is to have a crank signal. You have to put a toothed wheel on your engine with a VR or Hall (or optical) sensor. I think that have been done a lot of times on VW 1200, and there is certainly kit. A fully prebuilt ditributorless kit already has all you need, with correct tune. With ruse...

I have to plug 3 pairs of injectors on the MicroRusEFI, like there is just 4 outputs for inductive. But on my pinout, LS1 and LS2 will be inductive ready, for exemple. So usable for cylinder 5 and 6. I can also solder the pins behind the microrusefi, but I think I will keep it stock, the VR conditio...

What do you call a PnP board design ? I am interested by Hellen, but I dont find a lot of informations, or schematics. I will use the same molex and a "compatible" pinout of the microrusefi, but i don't have the "level" to do a so little PCB. And i don't feel myself about solderi...

Finally, i do a clean PCB, here it is. Double stack.jpg Schematic_Double Shield_2020-11-09_23-51-46.png There is a lot of room left, but that is the size of the STM discovery board. I don't think somebody care about that board, but I prefer sharing :D Sorry about easyEDA :P BTS reversed.jpg Do you t...

Here is a picture and a schematic of what I was talking : Reverse.jpg Schematic_Double Shield_2020-11-09_22-41-23.png I don't know how to put two PCB on 3D view, I can't show you the "double stackhouse" :D It isn't well finished but that give the idea, you can put 2 PCB like this together,...

Thanks ! mck1117, you are right, the BTS3028 is expensive, but finally not bigger (with all the protections) and way more useful and powerful. Andreika, that's funny, today, I was thinking about creating a shield with a shield on it, in order to cut the "outputs" part in two identical PCB,...

There is really a big difference between the two !

Thanks !
I hadn't see the BTS3028, they look better and shorter.

The MR and AR, mean Main Relay (for fuel pump) and auxiliary relay (for fan relay).
It's design for relay, and I want them small.
The 100k is a protection for stm, just in case, as the relays are inductive.

Am I wrong ?

Hello, I am really impressed by the Rus EFI project, and I am curious about creating a PCB. I don't know a lot about electronic, and PCBs, but I am really impressed by the possibilities of the STM32. I come from megasquirt and I am surprise how RusEFI is open source ! But I feel sad that the PCB can...

I don't think that I can help you, but maybe your knock sensor is badly placed, if you put it on the cylinder 1, you have maybe less parasite noise that in the middle of the block. DO you use a full band bosch sensor ? They are know to be the best. I am using a lilknockmeter, and it detects RPM, I d...

Thanks for the answers.

But... I have others questions

I see there is flashmemory on the MRE, I also see that it can be accessible by the rusefi plugin, but how can we activate the logs, is it automatic ? Can we choose what to log ?
And what happen when the memory is full ?

Thanks,