Save this Reference designs list

Here are 9 reference designs that can help you in becoming a better PCB designer. None of the below are any affiliations, these are the boards I’ve collected over a course of time.

ESP32 with 4G boards for you next IoT project. I like these because they have 4G connectivity

• LilyGo-T-PCIE
• T-A7608X
• LilyGO-T-SIM7000G

28pins and iMX rex board by Robert Feranac, they have amazing documentation

nRF52 reference designs these are great as these design are used in production of their development kits.

• nRF52 remote is a BT remote to build off of.
• nRF52 desktop ( includes design files for keyboard, mouse and dongle)
• nRF9160 development kit for NB-IoT designs
• Thingy 52 - On how to use battery management for these IoT projects.

Olimex - Great open source board designed with KiCAD.

DeplthAI hardware - for vision related projects. most designs use intel ai module, you cannot replicate the designs but a good resource to learn about how CSI interconnects are laid out.

• LimeSDR - Great board to learn about RF
• Ubertooth one - Bluetooth experiments

Toradex Reference design board- This company sells SoMs Their reference design are good for high speed interconnects

Smart watches

• Hexiwear - smart watch design, good for looking for techniques on how to make a compact design.
• Watchy - Watch with E-paper display.

CM4 reference boards

• Retro-Lite-CM4 - Great project with a finished product.
• QWAVE_Raspberry-Pi-CM4-Altium-Library for designing CM4 based carrier boards in Altium

Studying these design will for sure help you to become more better at design