One ROM Fire USB - Laying out RP2350 + USB in 1/2 x 1 inch

In this video I summoned up the energy to re-lay out the RP2350 One ROM, adding USB support, as well as another image select jumper. It’s a long video, and is intended as a deep dive into how I go about laying out an extremely space constrained, 2-layer, PCB.

There’ll be a follow-up when I receive the boards back from fab and assembly - and we will be able to see if the design is good!

🔗 Links

One ROM website: https://onerom.org/

🛒 Buy One ROMs

Keep an eye on my online store if you want to buy One ROMs when they are available:

https://www.packom.net/product/one-rom/

Don’t feel you need to buy my version of One ROM - I have no problem with you getting them fabbed yourself, or even selling them for profit. I will even advertise your version of One ROM on my youtube channel and at onerom.org if you share a link with me.

⏰ Timestamps

0:00:00 🎬 Introduction
0:02:22 📐 Schematic
0:16:59 🔌 PCB Layout
1:47:17 🎨 PCB Aesthetics
1:50:41 ✅ Final PCB