For discussion of Speeduino compatible boards designed / built by other members of the forum and for guidance around making such a board
By runesm
#66367
chaoschris wrote: Wed Dec 20, 2023 1:32 pm Hi guys,
some good news upon end of the year:
BlitzBox is now officially supported in speeduino firmware (pull request #1148).
You can compile the the official code by your own or wait until next official release/update from noisymime.
There will also show up soon a newer pcb release with optimized handling for environments with hall sensors (without MAX9926)
Best regards and happy holidays,
Chris
Beautiful. Very well done. Happy holidays to you too
By ME124
#66386
Hello from beautiful Bavaria 🤙🏽,

after soldering the Bosch and MAX IC I programmed the Blitzbox and got my engine running.

But there are still some problems.
Maybe you guys can help me with them.

Is there any configuring of the Bosch IC needed?
I connected all the pins to the probe and Pin 4 to +12 V but I get no Lambda reading.

I connected Pin 14 to my MAP Sensor but there is no sensor reading.
+5 V and ground are connected and all my other sensors are working.

One additional thing:
Is it normal that the Blitzbox does some resets when plugging in the USB?
When I plug in the USB I hear the fuel pump relay clicking like crazy.
After a few seconds it stops and the ECU connects to tunerstudio.

Best regards
Mario
By Carsten
#66442
Hey Mario,

which version did you purchase?
I want to order PCBs to Germany soon. Maybe you can share some experience?

Regards from the "Nordpfalz"

Carsten
By ME124
#66443
Carsten wrote:Hey Mario,

which version did you purchase?
I want to order PCBs to Germany soon. Maybe you can share some experience?

Regards from the "Nordpfalz"

Carsten
I went with version 0.1.9 and ordered it at JLCPCB.
Worked like a charm.

Maybe my Chinese Bosch chips are the problem.
Is there a way to test them?
By Carsten
#66453
Good to see that the latest version is fine.
I will order now as well...

Have you flashed the second micro-controller for for the wide-band circuit correctly?

What tools are available to check the function? Do you own an oscilloscope to dive deeper into the circuit?
By Carsten
#66456
Hi all,

tried my order now at JCPCB. Unfortunately, I get an error message after uploading CSV files for the BOM and CPL files.
The system states that there are no components on TOP side of the PCB.

Any idea what is wrong?

Sincerely,

Carsten
By ME124
#66462
Carsten wrote: Thu Dec 28, 2023 10:05 am Good to see that the latest version is fine.
I will order now as well...

Have you flashed the second micro-controller for for the wide-band circuit correctly?

What tools are available to check the function? Do you own an oscilloscope to dive deeper into the circuit?
I flashed both micro controllers via Arduino ISP and it seemed like it was working.
Maybe the Bosch chip is just not working.

Apart from the problems I wrote earlier the board works.
So if you don't mind these problems ordering is no problem.

Regarding your order:
I just did the ordering process again without any problems.
A few parts are not in stock at the moment, but there should be an alternative available ...
By Carsten
#66466
Tried it again... Same issue :-(
Attachments
jlcpcb_issue.png
jlcpcb_issue.png (39.12 KiB) Viewed 1741 times
By Carsten
#66509
Hello all,

finally, I made it... 10 PCBs ordered... Some components are missing but this should not be a big deal.

Price is surprisingly low...

CU Carsten
By Hich
#66572
Hi Carsten,
do you need all 10 PCB or would you sell one to me?
BR Karsten
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