KiCad STM32 + RF + USB Hardware Design - Phil’s Lab #5

⏵Hardware and PCB design course: Overview of STM32, RF, and USB hardware design, schematic creation, and PCB layout and routing in KiCad using a real-world example project. (Timestamps in description) Various tips on controlled impedance routing, differential pairs, USB, and RF layout. If you’re enjoying my content, please consider becoming a patron: Correction in schematic: NRF24 IREF pin needs to be pulled low to GND via a 10k resistor (not to 3V3 as shown in the video!). Fix has been pushed to GitHub. Design files: TIMESTAMPS [Introduction] 00:00 - System overview, component selection 03:15 - STM32 pin-out and peripheral selection [Schematic] 04:10 Schematic sectioning 04:48 Power supply (power via USB, filtering, USB decoupling caps) 06:45 STM32 microcontroller (USB connections and terminations, SPI, LEDs, decoupling) 09:55 SWD (Serial Wire Debug) connector 10:45 USB connector and ESD protection 13:11 NRF24 RF transceiver 14:40 Extern crystal (load capacitor calculation) 15:57 RF antenna matching circuit 17:31 Component selection and sizing [Layout] 19:24 Rough layout and sectioning (USB, power, microcontroller, and RF) 20:37 Component placement order (most ’critical’ components first) 21:30 USB ESD protection placement 21:42 RF layout 22:16 Determining board outline (size and rounded edges) 22:42 Fine-tuning the layout [Routing] 23:24 Layer stack-up (4 layer board) 24:16 Sectioning (USB, power, microcontroller, and RF), track widths, and clearance 25:17 Power and ground via connections to copper pours 26:00 Ground and power planes 26:43 Power supply routing 27:26 STM32 routing 28:15 Crystal routing 29:40 RF and USB routing (trace impedance, differential routing, ground pours) 36:53 RF guard ring 38:45 Clearance between traces 39:25 Via-in-pad [Silkscreen] 40:05 Labelling and logo 40:40 Marking ’pin 1’ locations 40:53 Marking diode polarity [Manufacturing] 41:42 Checking your work 42:00 Gerber and drill file export 42:25 Footprint positions file (for assembly) 42:49 Bill of materials (BOM) 43:10 Gerber file check (via GerbView) ID: QIBvbJtYjWuHiTG0uCoK