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-USB (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
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