Raspberry Pi HAT Design Guide

T

theheiszt

I want a raspberry pi 3b+ hat for 2 nRF24L01+ modules. the min trace width should be 0.4mm. 2 layer board, home fabrication.

flux

Your goal is a Raspberry Pi 3B+ HAT with two nRF24L01+ modules.
  • I’ve prepared the plan.
  • It covers HAT pin allocation, 2-layer/home-fab constraints, 0.4 mm minimum trace width, module integration, and final routing/review.
Click Start on the plan bar to begin. Let me know if you want any requirement changed first.
T

theheiszt

Use the common 2x4 2.54mm header footprint for both nRF24L01+ modules.

flux

Your goal is now a Raspberry Pi 3B+ HAT with two nRF24L01+ module connectors using common 2x4 2.54 mm headers.
  • I updated the plan with that footprint requirement.
  • It still preserves 2 layers, home fabrication, and 0.4 mm minimum trace width.
Click Start on the plan bar to run it.
Add ESD protection
Space module headers
Review decoupling needs
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Files

Schematic

Layout

3D View

Schematic of Raspberry Pi Model B Hat Template
RPi1
H3
+3V3
+5V
H4
H2
H1

Raspberry Pi Model B Hat Template