The Story
An RP2040 board with hardware USB Device (plug) and software USB Host (socket)!
The USB Interposer from 8086 is a compact RP2040-based board with two USB ports, the USB 2 Type-A plug is connected to the hardware USB device and the USB socket is connected to GPIO pins allowing it to be used with Pico-PIO-USBÂ (a USB host/device implementation using PIO of Raspberry Pi Pico).
The board also has 2 LEDs on each side (red/amber), 3-pin SH sockets for UART and SWD debug, and a 4-pin SH socket (STEMMA QT/Qwiic) for I2C. The BOOT button is also available as a user button.
The USB Host port can be used with CircuitPython (USB HOST) or Arduino software.
| GPIO | Name | Description |
| GP0 | UART TX | Serial Port |
| GP1 | UART RX | Serial Port |
| GP7 | LED | Top Red |
| GP8 | LED | Top Amber |
| GP12 | Button | User/BOOT |
| GP14 | SDA | I2C St/Qw Port |
| GP15 | SCL | I2C St/Qw Port |
| GP16 | D+ | USB Socket |
| GP17 | D- | USB Socket |
| GP18 | USB PWR Enable | USB Socket |
| GP22 | LED | Bottom Red |
| GP23 | LED | Bottom Amber |
| GP26 | ADC | /2 voltage on VBUS Input |
| GP27 | ADC | /2 voltage on VBUS Output |
Package Contents
- 1x USB Interposer board

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
An RP2040 board with hardware USB Device (plug) and software USB Host (socket)!
The USB Interposer from 8086 is a compact RP2040-based board with two USB ports, the USB 2 Type-A plug is connected to the hardware USB device and the USB socket is connected to GPIO pins allowing it to be used with Pico-PIO-USBÂ (a USB host/device implementation using PIO of Raspberry Pi Pico).
The board also has 2 LEDs on each side (red/amber), 3-pin SH sockets for UART and SWD debug, and a 4-pin SH socket (STEMMA QT/Qwiic) for I2C. The BOOT button is also available as a user button.
The USB Host port can be used with CircuitPython (USB HOST) or Arduino software.
| GPIO | Name | Description |
| GP0 | UART TX | Serial Port |
| GP1 | UART RX | Serial Port |
| GP7 | LED | Top Red |
| GP8 | LED | Top Amber |
| GP12 | Button | User/BOOT |
| GP14 | SDA | I2C St/Qw Port |
| GP15 | SCL | I2C St/Qw Port |
| GP16 | D+ | USB Socket |
| GP17 | D- | USB Socket |
| GP18 | USB PWR Enable | USB Socket |
| GP22 | LED | Bottom Red |
| GP23 | LED | Bottom Amber |
| GP26 | ADC | /2 voltage on VBUS Input |
| GP27 | ADC | /2 voltage on VBUS Output |
Package Contents
- 1x USB Interposer board

























