QUERY · ISSUE

How do I read USB keyboard input in Pi Pico

openby nayanaggopened 2021-05-10updated 2025-10-03

port-rp2

Hi,

I've attached OTG to MicroUSB of pi pico to connect the USB keyboard and power the pico with VBUS 5V.

the issue is how can I read the input in Pi Pico using i2cLCD.

CANDIDATE · ISSUE

Advanced HID

closedby EinfachNurBaumopened 2026-01-06updated 2026-01-06

enhancement

Description

Hello everyone,
I've encountered the problem that in Python you can't see which data is used for constants like these from usb_hid. So I tried to test whether I could use my Raspberry Pi Pico as both a keyboard and a mouse USB device at the same time. To do this, I would have to create my own complete USB HID REPORT DESCRIPTION. It would be great if there were some kind of dictionary or something similar to print the constants with information about which byte is used for what, or if it were possible to configure this much more easily.

Code Size

No response

Implementation

I hope the MicroPython maintainers or community will implement this feature

Code of Conduct

Yes, I agree

Assessment

Q Qwen · high

The query (issue #7241) is a user asking how to read USB keyboard input on a Pi Pico and display it on an LCD. This is a usage/support question about existing functionality. The candidate (issue #18647) is a feature request asking for better visibility into USB HID constants and the ability to create custom HID report descriptions for composite devices (keyboard + mouse). While both involve USB HID on the RP2 port, the candidate does not address the user's need to read input from an external keyboard. The candidate is about making the Pico act as a HID device, not reading from one.

Suggested action

Close the candidate issue as off-topic relative to the query, or mark as unrelated. The query should be answered with documentation or examples on using the existing `usb_hid` module in device mode to read input.