How to Make a Raspberry Pi Compute Module 4 Carrier Board in KiCad - Part 2 | Digi-Key Electronics

[@lvisintini]

I've been designing a breakout board to the CM4 and this series is just what I needed, as most of the time I don't event know what I'm doing. Many thanks!

[@neutrino4377]

If I want to make my custom carrier board (suppose only have a HDMI and USB port), do I need to write any custom code for this?

[@Mo-Tx]

NOPE

[@NewAgeDIY]

As a retired bench tech I really appreciate the effort you have gone through designing this board. I’m not sure if I will ever have the time to design my own carrier board but I am interested in buying one from a designer like yourself. Can you point me the right place that showcases different boards that are available. Thanks again for your dedication to the Maker Community.

[@radekhladik7895]

The datasheet for the CM4 module clearly says: The differential pair should be routed as a 90Ω differential pair. The P N signals should ideally be matched to 0.15mm.

[@Luc484]

This is exactly what I was looking for. I created my first simple PCB thanks to your lessons. This is what I'd like to do next.Can't wait for the next part! Thank you!

[@fastbike9845]

Stencil thickness guide at 38:45 is very useful. I'm looking to build a custom carrier board for an automation project and need some guidance on adding NVE storage.

[@zerosugarmatcha7348]

I haven't done any PCB since married 2 decades LOL, but itchy to pick it up after watching this. I'm thinking about a full 100W PD dual DRP board, and step down to 5V and 20V for CM4 and Dynamixel servos.

[@mikolaj8776]

Very fast tutorial ;-) - years of knowledge exposed in 45 minutes ;-) Great work !!!. It was really nice to watch. Is there a next part with soldering?

[@constantinmarcel2680]

Is there going to be a third part ? If so, when will it come out ?

[@digikey]

Unfortunately, chip shortages have delayed this video, but it should be released next month.

[@julianphillips598]

How does one ensure alignment of the Hirose connectors so the Compute module will mate? Does the surface tension of solder during reflow ensure they both end up in the correct positions relative to each other?

[@rubencg195]

Hi @ShawnHynel, any updates on part 3 of this series of videos. Again, awesome job. Thanks!

[@digikey]

Unfortunately, chip shortages have delayed this video, but it should be released next month.

[@rubencg195]

@@digikey awesome! Thanks. Would be great if you could add the sdcard slot.

[@vishal01mehra]

Eagerly waiting for next episode. Been watching it over and over. Please upload the next video of the series.

[@digikey]

Unfortunately, chip shortages have delayed this video, but it should be released next month.

[@PedroSilva-rm1du]

The differential pairs were calculated without considering the coplanar waveguide configuration, but the layout itself has the GND pour around the traces. Don't this changes the characteristic of the differential impedance, resulting in a smaller impedance than was desired? Very nice video, thanks!

[@Graham1904]

If the Z0 of a USB route is 90 ohm why did you select as 45 ohm be the target?

[@samsonlohasaptawee531]

I am waiting for episode 3 :)))

[@d3stinYwOw]

Why it needs kicad 6.x in order to do this, when everything you used is available in kicad 5.1 series?

[@wojciechjaworski602]

Kicad v6 uses the new file format for a schematic and project, and cannot be opened in kicad 5.1. Raspberry team used the new version of Kicad probably because they took advantage of new features available only in a new version.

[@sparky_malarkey-dk8ny]

I'm designing a breakout board for the cm4 and the module will not boot when I power it on. The nRPI pin is left floating so it is held high during boot and power seems to be stable to the compute module. The 3.3 bus is outputting and the current is stable at about 10 mA. is there anything that anyone can reccomend for debugging this?

[@hareeshkondepati7322]

Can we redesign raspberry pi zero W with more ram and embedded sd card. !?.

[@spacewolfjr]

I like a man who uses WinAmp, you could say he really whips the llama's ass!

[@ShawnHymel]

I was wondering if anyone was gonna notice that! I've tried many different players over the years, and despite all the features, I still keep coming back to WinAmp for its simplicity :)

[@EngineeringVignettes]

I have been using Winamp since '98. It's too bad Shoutcast is in such sad shape though. Cheers,

[@Quarky_]

@@ShawnHymel I switched to Linux >10 yrs ago, and missed WinAmp. So now I use Audacious with a WinAmp Classic theme :-p

[@bendecaf]

Very educational. Looking forward to part 3.

[@ParallelLogic]

How to output position of both Hirose connector in .pos file?

[@grugiv]

the numbers part of it is a bit confusing, but this video definitely shows that making a pcb isn't as awful as i thought!

[@rubencg195]

Hi @ShawnHynel, any updates on part 3 of this series of videos. It’ll be great if you could add the sd card reader component if possible. Thanks!

[@digikey]

Unfortunately, chip shortages have delayed this video, but it should be released next month.

[@karryvenkatesh5116]

Thanks a lot for the video. Waiting for part 3

[@digikey]

Unfortunately, chip shortages have delayed this video, but it should be released next month.

[@rubencg195]

Awesome video! Thanks. It is what I need for my project! @ShawnHymel , could you do part 3 to show the assembly and soldering using the stencil and the module testing and setup?

[@ShawnHymel]

This was the plan, but I need a CM4 to make it happen. I'm still waiting for a WiFi, non-lite version of the CM4 to be in stock (from anywhere).

[@rubencg195]

@@ShawnHymel awesome, thank! Would it take much to include the sd card reader? It is the only component that I feel not sure about how to do it.

[@ShawnHymel]

@@rubencg195 It's not something I have planned, but good to know there's interest. To use the SD card in SPI mode with FATFS, it's a pretty involved process. I recommend checking out this video: kzbin.info/www/bejne/qaG5eo2FYs-Vrqc. If your chip supports it, I recommend using the SD mode in CubeMX, as that seems to work out of the box.

[@rubencg195]

@@ShawnHymel Any update on part 3 of this video series? Thanks!

[@ShawnHymel]

@@rubencg195 Not yet...my CM4 is in the mail, though. Here's hoping it works!

[@nitinj.sanket2236]

Oh yeah! Right on time before Christmas :)

[@baldebaldemord9588]

at 7:00 ish: Couldn't you have just entered 45 Ohm exactly an then press synthesize?

[@ShawnHymel]

Probably...I think I ran into some issues with the KiCad calculator. It should work on other calculators, though.

[@jeffreydoujon638]

Wheres Part 3 ?????

[@digikey]

Unfortunately, chip shortages have delayed this video, but it should be released next month.

[@MuhammadDaudkhanTV100]

Beautiful

[@cf9870]

Im looking for someone to design a board for me, is there a good place to find board designers at an affordable cost?

[@boovaragan_sriram]

Hi, I am a PCB design Engineer. I can design the boards for you. Please reply here and I will share my contact details with you so that we can have a discussion to see what best I can do for you in designing the board for you.

[@sakshigopaladas7026]

@@boovaragan_sriram support @ dev-x. co. za

[@boovaragan_sriram]

@@sakshigopaladas7026 Hi, please check the email that I have sent to the mentioned address.

[@genalphalyrics8729]

The part 3 of this never came out!...

[@digikey]

Unfortunately, chip shortages have delayed this video, but it should be released next month.

[@genalphalyrics8729]

@@digikey okay i'll be waiting!..

[@SAMCOOLBUDY]

Nice

[@powil4ss]

never seen USB traces that fat..

[@ShawnHymel]

Unfortunately, that seems to be what's required when you're using a 2-layer board with 1.6mm of separation between the layers. Usually, you'll see USB traces on 4+ layer boards or boards with much thinner dielectric. With a smaller separation between the USB data lines and the ground plane, you can use much thinner traces.

[@adamsthename]

@@ShawnHymel Yeah I was yelling at the screen telling you to go four layer board as soon as I saw how thick those traces would be :) Great work Shawn!

[@biskero]

ok add a GPS N8M, an Accelerometer/Gyro/Magnetometer and a Coral for AI and I buy the board !

[@matthewbrown4549]

that's exactly what i'm looking for and probably going to try design!

[@olvintful]

Thanx for your video. It helped me to design my board github.com/olvint/CM4-NAS-MiniPCIE

[@primeral]

How is your board performing? I like your design.

[@olvintful]

@@primeral i made a board. But i did not bought CM4 due to shortage and pricegrow. It became more feasible to buy x86 motherboard with installed cpu and make NAS.

[@primeral]

@@olvintful I've been looking for CM4s for a while also. Do you outsource work? I have a board I would like designed for the CM4

[@olvintful]

@@primeral i am not a pro. This was my first pcb project)))

[@primeral]

@@olvintful I was hoping I didn't have to learn another craft 😄 I just wanted to run 2x SATA3 3.5in HDDs and GbitE with a CM4