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The adaptor allows the Raspberry Pi 4 to be used with a Pi Micro USB power supply (or DC barrel jack) whilst allowing access to the OTG USB.
USB Type-A (data and power) <> USB Data (Micro USB) and Power (Micro USB/Barrel jack).
|USB Type A||Micro USB (PWR)||Micro USB (USB)||Barrel Jack|
The barrel jack accepts 5.5 mm jacks (2.1/2.5 pin) providing 5V.
To use the adaptor with the Raspberry Pi 4 you need.
- A short USB-C to USB-A cable between Pi4 and the adaptor board.
- Micro USB cable to access USB OTG Data.
- Power via either Micro USB Power Supply or Barrel jack (5v 2.4 Amp or higher PSU).
(Raspberry Pi/USB Cables/PSU/etc. not included)
Short cables are advised as the voltage drop over longer cables may cause problems.
Using a Cluster HAT node image (p1/p2/p3/p4) you can plug the USB data into a computer (Raspberry Pi, Win10, etc.) and access the system via either USB Gadget Ethernet or Serial Console.