[Digi-Key Electronics Follow me Issue 2] + Task 1: Control the screen to display Chinese

施小杰

[Digi-Key Electronics Follow me Issue 2] + Task 1: Control the screen to display Chinese [Copy link]

 

Project introduction: By learning the Adafruit ESP32-S3 TFT Feather development board, you can control the screen and display Chinese.

Before starting the task, you need to download the corresponding version of the library from the link below. Since CircuitPython 8 is used, just choose the recommended 8.x version package. The link is https://circuitpython.org/libraries . One folder is the lib package and the other folder is the example package.

I further discovered that if I wanted to display Chinese, I needed a suitable Chinese font. After referring to online materials and reference designs by predecessors, I found that the following fonts could be used:

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Download it, here I choose wenquanyi_10pt.pcf to CIRCUITPY disk

Then add adafruit_bitmap_font and adafruit_display_text 2 libraries to the lib file as shown below

After adding the supporting libraries, the next step is to write the code:

First, add the library according to the syntax of CircuitPython

Then set the initialization parameters. After displaying Chinese fonts here, the LED is continuously flipped in the loop.

code show as below:

import board
import digitalio
import time
import displayio

from adafruit_display_text import label
from adafruit_bitmap_font  import bitmap_font

led = digitalio.DigitalInOut(board.LED)
led.direction = digitalio.Direction.OUTPUT

display = board.DISPLAY
board.DISPLAY.brightness = 0.5  #亮度
board.DISPLAY.rotation = 0

str_disp_0 = "欢迎参加Flow Me\n这是第二期"

font = bitmap_font.load_font("lib\wenquanyi_10pt.pcf")
color = 0xFFFFFF   #字体颜色

text_group = displayio.Group()
text_area = label.Label(font, text=str_disp_0, color=color)
text_area.x = 20    #显示的X轴
text_area.y = 20    #显示的Y轴

#启动屏幕显示
text_group.append(text_area)
display.show(text_group)

while True:
    if(led.value == True):
        led.value = False
    else:
        led.value = True

    time.sleep(2)

The experimental phenomena are as follows:

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Experience: First of all, I would like to thank Digi-Key Electronics for hosting this event. I am still a student and only know a little bit of 32. It was also during this event that I came into contact with CircuitPython. It is really convenient and it is also relatively simple to implement it by following the tutorial.

lugl4313820

Participating in more activities held by the forum will be helpful in improving and consolidating your learning.

秦天qintian0303

CircuitPython is quite convenient, but it just doesn’t know how to write firmware.