一、帖子汇总
【得捷电子Follow me第2期】任务1：控制屏幕显示中文
【得捷电子Follow me第2期】任务3：按键控制ws2812B
【得捷电子Follow me第2期】任务4：分任务1：日历&时钟
二、任务1：控制屏幕显示中文
2.1、下载CircuitPython Libraries
下载地址：https://circuitpython.org/libraries
2.2、复制文件到开发板
2.2.1、复制lib下这两个文件夹到开发板盘符下lib
2.2.2、复制字库到开发板盘符下fonts文件下
wenquanyi_10pt.pcf (2.18 MB, 下载次数: 3)
2.3、程序
修改code.py
import board
import terminalio
from adafruit_display_text import bitmap_label
from adafruit_bitmap_font import bitmap_font
font = bitmap_font.load_font("fonts\wenquanyi_10pt.pcf")
color = 0x00ff00
text2 = "你好!电子工程世界"
scale = 2
text_area2 = bitmap_label.Label(font,text=text2,scale=scale)
text_area2.x = 10
text_area2.y = 60
board.DISPLAY.show(text_area2)
while True:
pass
2.4、运行
三、任务2：网络功能测试
3.1、连接WIFI测试
测试连接WIFI，显示屏上显示出设备IP地址
3.1.1、测试代码：
copy.py
import board, os, wifi
import terminalio
from adafruit_display_text import bitmap_label
from adafruit_bitmap_font import bitmap_font
font = bitmap_font.load_font("fonts\wenquanyi_10pt.pcf")
color = 0x00FF00
wifi.radio.connect('TP-LINK', '66668888')
print("ipaddr: {wifi.radio.ipv4_address}")
text2 = "IP: " + str(wifi.radio.ipv4_address)
scale = 2
text_area2 = bitmap_label.Label(font, text=text2, scale=scale)
text_area2.x = 0
text_area2.y = 30
board.DISPLAY.show(text_area2)
while True:
pass
3.1.2、显示屏显示
3.1.3、ping 网络
3.2、WIFI热点测试
3.2.1、测试代码
copy.py
import board, os, wifi
print("test esp32_wifi_ap")
wifi.radio.start_ap('esp32_wifi', '11223344')
while True:
pass
3.2.2、手机连接
四、任务3：按键控制ws2812B
4.1、复制文件到开发板盘符下的lib文件夹下
4.2、测试代码
copy.py
import time
import board
import neopixel
import digitalio
from adafruit_display_text import bitmap_label
import terminalio
from adafruit_bitmap_font import bitmap_font
font = bitmap_font.load_font("fonts\wenquanyi_10pt.pcf")
color = 0x00FF00
text2 = "W2812B 关闭 "
scale = 2
text_area2 = bitmap_label.Label(font, text=text2, scale=scale)
text_area2.x = 10
text_area2.y = 30
text_area2.color = color
board.DISPLAY.show(text_area2)
pixel = neopixel.NeoPixel(board.NEOPIXEL, 1)
pixel.brightness = 0.5
white = (255, 255, 255)
red = (255, 0, 0)
green = (0, 255, 0)
blue= (0, 0, 255)
black = (0, 0, 0)
button = digitalio.DigitalInOut(board.BUTTON)
button.switch_to_input(pull=digitalio.Pull.UP)
pixel.fill(black)
but=0;
while True:
if not button.value:
but=but+1
while (not button.value):
pass
if but==0:
pixel.fill(black)
text2 = "W2812B 关闭 "
text_area2 = bitmap_label.Label(font, ext=text2, scale=scale )
text_area2.x = 10
text_area2.y = 30
text_area2.color = 0x000000
board.DISPLAY.show(text_area2)
elif but==1:
pixel.fill(red)
text2 = "W2812B 红色 "
text_area2 = bitmap_label.Label(font, text=text2, scale=scale)
text_area2.x = 10
text_area2.y = 30
text_area2.color = 0xff0000
board.DISPLAY.show(text_area2)
elif but==2:
pixel.fill(green)
text2 = "W2812B 绿色 "
text_area2 = bitmap_label.Label(font, text=text2, scale=scale)
text_area2.x = 10
text_area2.y = 30
text_area2.color = 0x00ff00
board.DISPLAY.show(text_area2)
elif but==3:
pixel.fill(blue)
text2 = "W2812B 蓝色 "
text_area2 = bitmap_label.Label(font, text=text2, scale=scale)
text_area2.x = 10
text_area2.y = 30
text_area2.color = 0x0000ff
board.DISPLAY.show(text_area2)
elif but==4:
pixel.fill(white)
text2 = "W2812B 白色 "
text_area2 = bitmap_label.Label(font, text=text2, scale=scale)
text_area2.x = 10
text_area2.y = 30
text_area2.color = 0xffffff
board.DISPLAY.show(text_area2)
#a=a+1
if but>4:
but=0
time.sleep(0.1)
4.3、运行效果
通过按键切换WS2812B显示的颜色，同时在LCD上显示相应状态颜色的汉字
五、任务4：分任务1：日历&时钟
5.1、复制文件到开发板盘符/lib文件下
5.2、测试代码
copy.py
import board, os, wifi
import time
import ssl
import socketpool
import adafruit_requests
from adafruit_display_text import label, wrap_text_to_lines
from adafruit_bitmap_font import bitmap_font
color = 0xFFFFFF
font = bitmap_font.load_font("fonts\wenquanyi_10pt.pcf")
display = board.DISPLAY
display.brightness = 1
display.rotation = 0
JSON_TIME_URL = "http://quan.suning.com/getSysTime.do"
JSON_weather_URL = "http://t.weather.sojson.com/api/weather/city/{}"
pool = socketpool.SocketPool(wifi.radio)
requests = adafruit_requests.Session(pool, ssl.create_default_context())
def refresh_screen(print_text):
text_area = label.Label(font, text=print_text, scale=1)
text_area.x = 5
text_area.y = 15
text_area.scale = 1
text_area.color = color
display.show(text_area)
def get_data():
try:
response = requests.get(JSON_TIME_URL)
except ConnectionError as e:
print("Connection Error:", e)
print("Retrying in 60 seconds")
time_data = response.json()['sysTime2'][:-3]
try:
city_code = "101180101"
url = JSON_weather_URL.format(city_code)
response = requests.get(url)
except ConnectionError as e:
print("connect error:{},retry in 60s".format(e))
weather_data = response.json()
cityInfo = weather_data['cityInfo']
city_weather = weather_data['data']
forecast = city_weather['forecast']
dis_str = cityInfo['city'] + ' ' + forecast[0]['week']
dis_str += "\n时间:"+time_data
dis_str += "\n温度："+city_weather['wendu']+"℃"
dis_str += "\n湿度：" + city_weather['shidu']
dis_str += '\n空气质量：' + city_weather['quality']
return dis_str
while not wifi.radio.ipv4_address:
try:
wifi.radio.connect('TP-LINK', '66668888')
except ConnectionError as e:
print("connecti error:{},retry in 2s".format(e))
time.sleep(2)
print("get ip:", wifi.radio.ipv4_address)
while True:
info = get_data()
refresh_screen(info)
time.sleep(60)
5.3、运行
获取的天气信息显示在LCD上
六、心得
此次活动让我学习了Adafruit ESP32-S3 TFT Feather开发板使用CircuitPython编程，原来编程可以这样做，使用很方便。通过几个任务的测试，学习到了LCD的显示，按键控制W2812B多彩灯的颜色切换，网络通信功能的测试。希望后续有机会继续参与到此活动。
赞~全称认真跟学下来啦~
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