CubeSat Microcontroller Main Board Development in KiCad 8

Join the Discord: https://discord.gg/yeusgM75ys In today's video, I set out to design a modular #pcb that works with @sparkfun MicroMod and will serve various purposes in my #cubesat . Also, I try to apply the learnings from EPS r1 while I talk through some of the trickier aspects of designing this PCB in #kicad 8. Huge thanks to @PCBWay for sponsoring this video! Use my referral link to get $5 credit: https://pcbway.com/g/i2s1I5 *Dev kit shop will be up in late 2025 / early 26* – get pinged: https://forms.gle/5a2UZdfcyUmFjTZd8 ## 🛰️ Support This Project If you are looking for a way to support this channel, leave a tip or become a member :) - Channel Memberships: https://www.youtube.com/channel/UCLf9aKlW-TbC8zbrl0OvKLQ/join - Patreon: https://patreon.com/buildacubesat - Ko-fi: https://ko-fi.com/buildacubesat - PayPal: https://tinyurl.com/bac-donate *Timestamps* 00:00 Intro and MicroMod Overview 01:12 Goals of this PCB 02:32 Sparkfun #OSHW Schematic 03:33 USB-C Breakout Board 05:27 Schematic Overview 05:42 MacroMod and Ordering Edge Connectors from #PCBWay 07:17 Stackup Inspiration: CM5 #MINIMA Board 07:55 Schematic Overview cont'd 09:04 Block Diagram 11:13 Stackup Changes and EPS v1r1 Learnings 12:44 Tangent: Controlled Impedance and Differential Signals 20:39 Silkscreen Mgmt and Layout Strategy 26:03 Patreon and Outro *Repo Links* MCU Main Board Double: https://codeberg.org/buildacubesat-project/bac-hardware/src/branch/main/mcu/micromod-main-board Upcoming content: https://codeberg.org/buildacubesat-project/bac-docs/src/branch/main/content/content-plan.md *External Links* CM5 MINIMA by Pierluigi Colangeli: https://github.com/piecol/CM5_MINIMA_REV2 Designing with SparkFun MicroMod: https://learn.sparkfun.com/tutorials/designing-with-micromod SparkFun MicroMod Main Board Double: https://www.sparkfun.com/sparkfun-micromod-main-board-double.html Transmission Line Impedance Guide by Cadence: https://resources.pcb.cadence.com/blog/2022-a-guide-to-transmission-line-impedance *Video Links* Differential Pairs Video by Phil Salmony: https://www.youtube.com/watch?v=xwrdvhm4vgw Ground for Differential Pairs by Altium Academy: https://www.youtube.com/watch?v=jtPu-e0L3zo Carl Bugeja BNO086 Project: https://www.youtube.com/watch?v=eGRXOBEn9zk Need a friendly, non-corporate GitHub/Gitlab alternative? Check out https://codeberg.org/ #buildacubesat #episode #s02e01