CardKB Hat
The following products are supported:
Micropython Example:
1# SPDX-FileCopyrightText: 2024 M5Stack Technology CO LTD 2# 3# SPDX-License-Identifier: MIT 4 5import os, sys, io 6import M5 7from M5 import * 8from hat import CardKBHat 9from hardware import * 10 11 12label0 = None 13i2c0 = None 14hat_cardkb_0 = None 15 16 17def hat_cardkb_0_pressed_event(kb): 18 global label0, i2c0, hat_cardkb_0 19 label0.setText(str(hat_cardkb_0.get_string())) 20 21 22def setup(): 23 global label0, i2c0, hat_cardkb_0 24 25 M5.begin() 26 label0 = Widgets.Label("label0", 39, 109, 1.0, 0xFFFFFF, 0x222222, Widgets.FONTS.DejaVu18) 27 28 i2c0 = I2C(0, scl=Pin(26), sda=Pin(0), freq=100000) 29 hat_cardkb_0 = CardKBHat(i2c0, 0x5F) 30 hat_cardkb_0.set_callback(hat_cardkb_0_pressed_event) 31 32 33def loop(): 34 global label0, i2c0, hat_cardkb_0 35 M5.update() 36 hat_cardkb_0.tick() 37 38 39if __name__ == "__main__": 40 try: 41 setup() 42 while True: 43 loop() 44 except (Exception, KeyboardInterrupt) as e: 45 try: 46 from utility import print_error_msg 47 48 print_error_msg(e) 49 except ImportError: 50 print("please update to latest firmware")
UIFLOW2 Example:
stickc_plus2_cardkb_example.m5f2
class CardKBHat
Constructors
- class CardKBHat(i2c: I2C, address: int | list | tuple = 0x5F)
Create a CardKBHat object.
- Parameters:
i2c – I2C object
address – the I2C address of the device. Default is 0x5F.
UIFLOW2:
CardKBHat class inherits CardKBUnit class, See unit.CardKBUnit.Methods for more details.