David Glaude dglaude

WebHID:

Connecting to uncommon HID devices: https://web.dev/hid/
WebHID API: https://wicg.github.io/webhid/
WebHID Explainer: https://github.com/WICG/webhid/blob/main/EXPLAINER.md
Buzz controler in JS via WebHID: https://jackcarey.co.uk/posts/buzz-controller.js/
The demo: https://jackcarey.co.uk/buzz-controller.js/
Awesome WebHID: https://github.com/robatwilliams/awesome-webhid
ReMAP from QMK might use WebHID to configure the keyboard: https://remap-keys.app/
WebHID API: https://developer.mozilla.org/en-US/docs/Web/API/WebHID_API

New Feature "Camera" for CircuitPython.org/download

YES board:

Board that have a camera visible on the picture https://circuitpython.org/board/adafruit_esp32s2_camera/ https://circuitpython.org/board/espressif_esp32s3_eye/ https://circuitpython.org/board/espressif_esp32_eye/

MAYBE board:

Emulating PS2 keyboard

Video about PS2:

PS2 remote keyboard (wifi+web): https://remysharp.com/2021/04/14/building-a-ps2-remote-keyboard

Project ps2dev: https://github.com/Harvie/ps2dev

STATUS

CircuitPython does not support USB Host yet, but the basis API and partial implementation.

adafruit/circuitpython#6527

The idea is for CircuitPython to rely on TinyUSB, the same way it does for USB Client activities.

Some hardware that run CircuitPython are designed with USB Host in mind such as:

https://circuitpython.org/board/espressif_esp32s3_usb_otg_n8/

PS2 is a old PC keyboard (and mouse) connector/protocol used prior to USB. It is still available on some PC mother board. The protocol is serial and run at 5V, so it require electronic if your microprocessor is 3V.

Support for CircuitPython was added by user elvis-epx with the PR: adafruit/circuitpython#1893

The process to add PS2 protocol to CircuitPython was documented by the author: https://epxx.co/artigos/howto.html

Here is the CircuitPython documentation: https://docs.circuitpython.org/en/latest/shared-bindings/ps2io/index.html

V1 vs V2 vs V3

1.Pinout table

Peripherals	T-Watch2020 V1	T-Watch2020 V2	T-Watch2020 V3	NOTES
Core	ESP32-DOWDQ6	ESP32-DOWDQ6	ESP32-DOWDQ6
Flash	16MB	16MB	16MB
SPRAM	8MB	4MB	8MB	WARNING
TOUCH Driver	FT6336	FT6336	FT6336

	import storage, usb_cdc
	import board, digitalio
	import usb_hid, usb_midi

	# On the Macropad, pressing a key grounds it. You need to set a pull-up.
	# If not pressed, the key will be at +V (due to the pull-up).
	button = digitalio.DigitalInOut(board.KEY12)
	button.pull = digitalio.Pull.UP

	# Disable devices only if button is not pressed.

	"""Seeeduino XIAO RP2040: Build in RGB LED simultaniously as NeoPixel."""
	import time
	import board
	import neopixel
	import digitalio

	BLACK = (0, 0, 0)
	RED = (255, 0, 0)
	GREEN = (0, 255, 0)
	BLUE = (0, 0, 255)

	import usb_hid
	from adafruit_hid.keyboard import Keyboard
	from adafruit_hid.keycode import Keycode
	import time
	import random

	# Initialize Keyboard
	kbd = Keyboard(usb_hid.devices)

	# Press and release CapsLock in loop.

	# SPDX-FileCopyrightText: Copyright (c) 2021 Tim Cocks for Adafruit Industries
	#
	# SPDX-License-Identifier: MIT
	"""
	`adafruit_st25dv16`
	================================================================================

	CircuitPython driver for the I2C EEPROM of the Adafruit ST25DV16 Breakout