REFERENCE DESIGNS

Open hardware, with the files to prove it.

562 published boards whose schematic and layout source is public — KiCad, EAGLE, Altium and EasyEDA projects you can read, fork and build on. Every entry links to the original repository and names its licence.

Boards indexed

562

With a design page

562

KiCad projects

253

Official boards matching “nrf52”

Exact board pages for widely used TI, ST, Espressif, Arduino, Raspberry Pi and Nordic hardware, linked to the manufacturer’s schematics and design resources.

Browse all 13 official boards

Nordic SemiconductorOfficial resources

nRF52840 DK

A multi-protocol nRF52840 development kit for Bluetooth Low Energy, Matter, Thread, Zigbee, NFC and proprietary 2.4 GHz designs.

nRF52840

View reference board

3 boards matching “nrf52”Page 1 of 1

Ergo Snm Keyboard board, published by siderakb

KiCad source

Keyboards & input devices

Ergo Snm Keyboard

by siderakb

ErgoSNM is a split ergonomic keyboard integrated with trackball, wireless is in beta

170 12CERN-OHL-P-2.0

Altium source

Keyboards & input devices

cyber60

by 4pplet

60% Bluetooth PCB using the nRF52840. MX, ALPS and SMK versions.

143 25Custom

KiCad source

Microcontroller boards

Mdbt Micro

by siderakb

A nRFMicro/Pro Micro compatible Bluetooth LE board, uses MDBT50Q nRF52840/nRF52833 module

18 3MIT

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Microcontroller boards107 Keyboards & input devices73 Power & batteries38 Other boards38 Audio & music37 Displays & LED37 Retro computing37 Sensors & data acquisition36 Motor control & robotics36 Computers & FPGA34 Interfaces & adapters28 RF & wireless26 Test & measurement10 IoT & home automation10 Badges & art boards8 Automotive & vehicles4 Cameras & imaging3

Browse board families

ESP32ESP32 PCB design ArduinoArduino PCB design Raspberry Pi / RP2040Raspberry Pi PCB STM32STM32 PCB design Keyboard PCBkeyboard PCB design Power supplypower supply PCB design Battery chargerbattery charger PCB Motor controllermotor controller PCB Audio amplifieraudio amplifier PCB USB-CUSB-C PCB layout FPGAFPGA board design LoRaLoRa PCB design CAN busCAN bus PCB layout Dronedrone PCB design

Repository topics

Every project listed here belongs to its author and is linked to its original repository. Licences are read from the repository metadata and summarised for convenience — check the licence file in the project itself before you manufacture or redistribute a design. ProtoFlow does not host, mirror or verify these files. Index last rebuilt 2026-09-21.

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