KaupoiMOD PCB v2.0

Did some modifications on my PCB version. Made more room for capacitors and added some connectors. Could someone take a look at it if there is any faults? And check the gerber files too, please.

PCB size is about 99mm*99mm so it slides nicely to 100mm railbox.

Thoughts and comments are wellcome.

Do the I2C pins A4 and A5 need pullup resistors? It is mentioned in this article: Gammon Forum : Electronics : Microprocessors : I2C - Two-Wire Peripheral Interface - for Arduino

seems good to me , but maybe add an 3v3 output ? for BN0 or other sensor 3v

MMA has internal pullup resistors https://cdn.sparkfun.com/datasheets/Sensors/Accelerometers/SparkFun_MMA8452Q-Breakout.pdf

I’ve used BNO with 5V. But good idea, need to think about it.

Did some minor changes. I think it’s ready for now.

1 Like

Added mounting holes for Cytron MD13S.

Will it ever be ready…


Final version of KaupoiMOD PCB v2 can be now found from here: https://1drv.ms/u/s!Ao6_PnVNR5RXhI9jpnAUmugnmvs8vQ?e=ous5T3
20200112_134307 KaupoiMOD_PCBv2_0_3 kopio


I like the motor controller mounted like that, then remotely mounting it ( which I think is better) doesn’t create wasted PCB space.

Yes. Now there is even a lot of empty space in the 150 * 100 * 50mm enclosure. In the pictures, the first one I made with this case design.20200113_194752 20200113_194819


Where did you purchase this

PCB:s from https://jlcpcb.com/ or https://www.allpcb.com/
Aluminium enclosure from AliExpress.
Other parts from AliE, Digikey, Mouser and TME.

I’ve finished my KaupoiMOD pcb v2 :grinning:!


Look really good!

can You prepare one for me?

I’m sorry, but I do not deliver abroad.

image image

Board coming together here as well. Of course with child labour!

Rest of the parts stuck in customs from Mouser… Must say the jlcpcb board quality was a real nice surprise👍



looks great, is it the seam part lists as i can download on github .v4.1 => supported files => PCB => AutoSteerPCB_Gerber xlsx

Best Regards


I recommend to add:

  • 4 pcs Plastic M3x25mm standoffs and 8 pcs M3x8mm plastic screws to mount MD13s
  • 3 pcs Plastic M3x10mm standoffs, 6 pcs M3 plastic washers and 6 pcs plastic M3x6mm screws to mount ADS and MMA

okay, but in this excel there are in my opinion things doubled. Like the 12v relais.
Can you send your part Excel list maybe?
How expensive i just the platine to order? round about.

Regards Peter