This implementation allows to send strings as keyboard input for different layouts. As Layout ether a python dictionary or a list can be used. See provided layouts as example.
- List: Uses less memory and has latin-1 charset https://en.wikipedia.org/wiki/ISO/IEC_8859-1
- Dictionary: Charset can be self defined (based on UTF-8) uses a bit more memory but depends on how many characters are defined.
Both variants allow to use deadkeys, for eample ^ followed by a to get the â character.
NOTE: Latin-1 has no € symbol
This library needs adafruit_hid installed in the lib folder of your device.
Used on a Pi Pico, it uses about 12kb of ram.
Just copy keyboardext.py and the layouts you want to your lib/keyboardext folder on your circuitpython device. If you need extra space on your device you can safely delete the existing keyboard.py and keyboard_layout_us.py
import usb_hid
from keyboardext.keyboardext import Keyboardext
from adafruit_hid.keycode import Keycode
kbd = Keyboardext(usb_hid.devices)
kbd.set_layout("dict_de")
kbd.writeln("# German: #_:;<>|^!$%&/()=?`zY°ÜÖÄüöäßµ²³")
kbd.write("# Deadkeys: â ê Á É à è À È î Î Ô")
kbd.send(Keycode.ENTER)
kbd.write("en_us: ")
kbd.set_layout("en_us")
kbd.write("# German: #_:;<>|^!$%&/()=?`zY°ÜÖÄüöäßµ²³")- en_us - list
- de_de - list, dictionary
Adding a new layout is easy. Just copy an existing layout file like de_de.py, edit the key combinations and use it with
kbd.set_layout(yourfilename) The € symbol is not part of the charset above, so by now i can't be used within the write method of the keyboard. Of course it can be send as single command.
kbd.send(keycode.Keycode.E, keycode.Keycode.RIGHT_ALT)char mapping in the provided keyboard layouts may be incomplete (but easy to fix)
- Raspberry Pi pico; Adafruit CircuitPython 6.2.0-beta.2