Author Topic: Stupid quick PCB design  (Read 517 times)

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Offline Melvang

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Stupid quick PCB design
« on: Wed, 02 July 2025, 09:52:23 »
I was wondering if anyone would be willing to design a super simple PCB for me.  Essentially, I want this pcb but tweaked for an RP2040 controller instead of a Teensy 2.0.  I have tried many times to learn KiCad but can never seem to get the work flow down for ****. 
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Offline zegonix

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Re: Stupid quick PCB design
« Reply #1 on: Thu, 03 July 2025, 02:50:09 »
you linked to a post by someone (with the same handle as you) on a pcb manufacturers website. is this a product you want to sell? if so, it would be in your best interest to be transparent.

Offline Melvang

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Re: Stupid quick PCB design
« Reply #2 on: Thu, 03 July 2025, 04:53:09 »
The link is a PCB that I had done years ago, that is my account on Oshpark.  Another GH member did the Kicad work for me, by the name of Moz if memory is correct. I am not looking to sell it, unless there is interest for a GB, but I doubt it. I do plan to make the design public on Oshpark.
OG Kishsaver, Razer Orbweaver clears and reds with blue LEDs, and Razer Naga Epic.   "Great minds crawl in the same sewer"  Uncle Rich

Offline zegonix

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Re: Stupid quick PCB design
« Reply #3 on: Thu, 03 July 2025, 05:33:16 »
alright. on the pictures i don't see too much, but from the description i assume, the pcb houses a usb-connector, a power converter and the mcu, whose gpios are just routed to the pins?
i could do this, but it will be just functional, not pretty or sure to work in any environment (i could not guarantee for esd safety, or emi specifications..)
« Last Edit: Thu, 03 July 2025, 05:36:36 by zegonix »

Offline Melvang

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Re: Stupid quick PCB design
« Reply #4 on: Thu, 03 July 2025, 19:31:54 »
alright. on the pictures i don't see too much, but from the description i assume, the pcb houses a usb-connector, a power converter and the mcu, whose gpios are just routed to the pins?
i could do this, but it will be just functional, not pretty or sure to work in any environment (i could not guarantee for esd safety, or emi specifications..)

I think I am going to give KiCad another go.  It has been probably at least 10 years since I tried KiCad.  Realisitically, I should just have to build a footprint for the through holes on the RP2040, then bring that into a pcb, set my drills for the breakout pads, and go from there, correct?  And I really don't need a schematic, I would think.
OG Kishsaver, Razer Orbweaver clears and reds with blue LEDs, and Razer Naga Epic.   "Great minds crawl in the same sewer"  Uncle Rich

Offline zegonix

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Re: Stupid quick PCB design
« Reply #5 on: Fri, 04 July 2025, 02:01:55 »
you never explained your goal with this board, so i can only assume. i would think that you also want a usb connector, a voltage converter, a crystal for a reasonable clock and support capacitors for every vcc pin of the mcu. also as far as i know the rp2040 is available only in qfn packages which is surface mounted and does not need through holes (apart from the vias for the ground pad). depending on your use case the usb connector is optional, usb fullspeed (12 MHz) works quite well even without good impedance matching, so you can route it off the pcb to another one, just route them as differential pair and care to keep them roughly the same length.