
ESP32-Bit Pirate Dock
AndreiVladescu/ESP32-Bit-Pirate-Hardware
Carrier breaker-board for the ESP32-S3 Devkit. Works great with the ESP32-Bit-Pirate firmware.
Boards in 7 GitHub repositories, designed in KiCad, that use the TMUX1574PW by Texas Instruments (-40℃~+125℃ 1.5V~5.5V 2:1 2GHz 2Ω 3.5pC 35ns 4 7.5pF 95ns 95ps Bidirectional analog channel、Fault protection、Power-off isolation、Fail-safe disconnect TSSOP-16 Analog Switches, Multiplexers ROHS). See how each wires it, with its parts, size, README and files; the TMUX1574PW’s symbol, footprint and pinout are on its own page.

AndreiVladescu/ESP32-Bit-Pirate-Hardware
Carrier breaker-board for the ESP32-S3 Devkit. Works great with the ESP32-Bit-Pirate firmware.

Mage-Control-Systems-Ltd/CANBOB
A breakout board that enables USB or SPI to CAN communication using the MCP2515.

Manawyrm/QSPIBuddy
SPI NOR Flash mux - Raspberry Pi for embedded firmware development - Mux between DUT and Flasher

fgihl/usb-c-passthrough
A USB 2.0 (480 Mbit/s) passthrough board that can electrically "unplug" a USB connection under software control — used for Hardware-in-the-Loop (HIL) testing.
WiiMake/picones
In the last 40 years, technology has advanced to the point were what used to be done in hardware can now be done in software. This project uses an rp2350 to emulate a ROM chip on an NES Cartridge.

maceintu/Ampli-D
Amplificateur audio stéréo classe D open hardware : entrées filaires et Bluetooth, DAC audiophile, pilotage par microcontrôleur STM32. Le dépôt contient l'ensemble de la conception — schémas, PCB et firmware.

jayis1/hacker-devices
Full-cycle hardware designs for security research devices — each device is a subfolder with its own README, schematics, PCB layout, and software stack