Awesome video @ShawnHynel ! Thanks! I hope this video series doesn't end and we can see more advanced PCB designs using CM4. The topics I would like to see are: tips, good practices & tricks on how to design the SD Card interface, high-speed lines like HDMI, M.2 interface for a SSD and the one that I would be most excited about but might be more difficult to do is how to do an RGB 40-pins interface for a 5" or 7" 800x640 Adafruit TFT screen. Thanks again for the video, it has been of great help.
Best reason to have a proper bench power supply with adjustable current: when you smoke check a new board, start off at the lowest current setting. Know in advance about what the max I should be (ie your regulator's quiescent current and maybe a power LED) and gradually turn it up. If it goes past what you expect, shut it down and find the problem. This should be able to find issues before actually smoking a (possibly very expensive) component.
You can use the 64bit version on the CM4. I would watch configure WIFI. Then you have a network connection, can connect with SSH and make updates. Create the ssh file in the boot directory and store the WIFI parameters there. In addition, you can activate a USB 2.0 port on the CM4. A system with WIFI, one USB port, TTL Serial and the IO ports can do something useful. That's enough for Octoprint
Can you make another video showing how to approach adding something more complex, like a Realtek switch chip? I'm new to doing PCBs, and even though I can build boards with LEDs or buttons, I'm completely lost when doing the more interesting/complex stuff. What do I need to look for? How do I get it all linked up so that it is actually detected by the Pi?
I just designed a new I/O PCB for the CM4, but while I used low melt solder paste for the components, I hand soldered the mezzanine connectors to the CM4 out of fear of melting the plastic of the connector. Are you afraid of that in your oven?
thanks for video... but the serial converter would be explained more. specially if it was a 3.3v or 5v or a real 15v USB to serial converter. i am designing a carier board now, and gonna use most of periphrals and their protections... with a real serial port which is 15v to be able to directly connect to a real serial port of motherboard of other computers.
I am curious. Why didn't you put an Ethernet MAG socket on your carrier board. They are cheap, the Pi CM4 has all the PHY (so only socket necessary) and it gives you all of that really helpful Linux Network ability right from the start. Am I wrong?
I am writing to invite you to take a video on RUclips, and you will get these multifunctional voltage tester for free. Looking forward to your reply, we can talk about cooperation in detail.
All your videos are so interesting and so well presented. I love them.
Awesome video @ShawnHynel ! Thanks! I hope this video series doesn't end and we can see more advanced PCB designs using CM4. The topics I would like to see are: tips, good practices & tricks on how to design the SD Card interface, high-speed lines like HDMI, M.2 interface for a SSD and the one that I would be most excited about but might be more difficult to do is how to do an RGB 40-pins interface for a 5" or 7" 800x640 Adafruit TFT screen. Thanks again for the video, it has been of great help.
Yes, I'm looking for guidance on doing the M.2 interface ...
Never thought there'd be a part three but I'm so excited!!
Excellent, as always.
Keep these coming please! Youre very helpful
Putting new examples other than the link led code, thank you
That was great, all 3 videos.
Finally!!
Best reason to have a proper bench power supply with adjustable current: when you smoke check a new board, start off at the lowest current setting. Know in advance about what the max I should be (ie your regulator's quiescent current and maybe a power LED) and gradually turn it up. If it goes past what you expect, shut it down and find the problem. This should be able to find issues before actually smoking a (possibly very expensive) component.
You can use the 64bit version on the CM4. I would watch configure WIFI. Then you have a network connection, can connect with SSH and make updates. Create the ssh file in the boot directory and store the WIFI parameters there.
In addition, you can activate a USB 2.0 port on the CM4.
A system with WIFI, one USB port, TTL Serial and the IO ports can do something useful.
That's enough for Octoprint
Can you make another video showing how to approach adding something more complex, like a Realtek switch chip? I'm new to doing PCBs, and even though I can build boards with LEDs or buttons, I'm completely lost when doing the more interesting/complex stuff. What do I need to look for? How do I get it all linked up so that it is actually detected by the Pi?
Is there a cm4 display hat of same dimensions as cm4
Also a battery pack and charger.
I just designed a new I/O PCB for the CM4, but while I used low melt solder paste for the components, I hand soldered the mezzanine connectors to the CM4 out of fear of melting the plastic of the connector. Are you afraid of that in your oven?
Is it possible to use the ch340g to transfer data to a board as another option?
thanks for video... but the serial converter would be explained more. specially if it was a 3.3v or 5v or a real 15v USB to serial converter. i am designing a carier board now, and gonna use most of periphrals and their protections... with a real serial port which is 15v to be able to directly connect to a real serial port of motherboard of other computers.
I am curious. Why didn't you put an Ethernet MAG socket on your carrier board. They are cheap, the Pi CM4 has all the PHY (so only socket necessary) and it gives you all of that really helpful Linux Network ability right from the start. Am I wrong?
Or just use wifi?
@@TheXSairam Nowhere near as straightforward as simply plugging in Ethernet, as he said "right from the start"
Hi sir, can i contact you.
I am writing to invite you to take a video on RUclips, and you will get these multifunctional voltage tester for free. Looking forward to your reply, we can talk about cooperation in detail.