Raspberry Pi HAT Design Guide

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

Thought for 56 sec

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.

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

Thought for 53 sec

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

Files

Schematic

Layout

3D View

RPi1

+3V3

+5V

Raspberry Pi Model B Hat Template