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# Import all board pins.
import board
import busio
import time

import displayio
import adafruit_displayio_ssd1306
import vectorio

displayio.release_displays()

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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.

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"""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)

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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.

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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

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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:

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Emulating PS2 keyboard

Video about PS2:

• https://www.youtube.com/watch?v=7aXbh9VUB3U
• https://www.youtube.com/watch?v=PmJlDlI-Pb4

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

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

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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/

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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

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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