PicoUART6 is a small USB to UART bridge board that takes a Raspberry Pi Pico board and exposes six UART ports to connect up to six Raspberry Pi 5 SBC’s over the new 3-pin UART connector.
The Raspberry Pi 5 has created a lot of buzz since its announcement in September 2023, and people most talked about its higher performance compared to a Raspberry Pi 4 and its new (non-standard) FCP PCIe connector, but the new Raspberry Pi SBC also features a 3-pin JST UART connector that was not used in earlier and frees 3-pin on the 40-pin GPIO header. The PicoUART6 board makes use of this new connector to interface multiple Raspberry Pi 5 over UART and control them through the USB board of the Pico board.
PicoUART6 specifications:
- Footprint for Raspberry Pi Pico board
- Serial – 6x 3-pin JST UART connectors
- Expansion – STEMMA QT/Qwiic I2C connector
- Debugging – SWD connector to debug firmware on the Pico
- Misc – 6x LEDs for UART activity monitoring
- Dimensions – Compatible with Raspberry Pi HAT form factor to be mounted on top of a Raspberry Pi Model B SBC.
8086 Consultancy provides the pico-sexa-uart-bridge UF2 firmware that needs to be copied to the Raspberry Pi Pico and whose source code and binary file can be found on GitHub. Once this is done, six connect the board to your computer with a micro USB to USB cable, and six COM ports should show up on your computer. From there you can open terminal windows with Putty or another similar utility to monitor and control all Raspberry Pi 5 boards, or other boards with the same 3-pin JST connector…
The PicoUART6 sells for $7.62 on Tindie, but that’s without a Raspberry Pi Pico that needs to be soldered on the board. You’ll also need a few 3-pin 1mm pitch JST SH cables for the board to be useful, although purchasing those on Aliexpress or eBay will likely save you a few dollars.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
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