STEM教育 · 行空板触摸屏画板项目

行空板触摸屏（1）

2022-09-095454

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本项目介绍了一个基于行空板触摸屏的画板项目。硬件清单包括行空板触摸屏和相关配件。最终效果是用户可以通过触摸屏绘制线条和表情。难度等级适合初学者，无需编程基础。

画板
#  -*- coding: UTF-8 -*-

# MindPlus
# Python
from pinpong.extension.unihiker import *
from pinpong.board import Board,Pin
from unihiker import GUI

# 事件回调函数
def button_click1():
buzzer.play(buzzer.ENTERTAINER,buzzer.ForeverInBackground)
def button_click2():
buzzer.stop()
def button_click3():
a=u_gui.draw_emoji(emoji="Angry",x=0,y=0,duration=0.2)
def mouse_move(x,y):
global my_variable
global aaa
global bbb
if (my_variable == 0):
      a=u_gui.draw_rect(x=x,y=y,w=1,h=1,width=1,color="#0000FF")
      aaa = x
      bbb = y
      my_variable = 1
else:
      a=u_gui.draw_line(x0=aaa,y0=bbb,x1=x,y1=y,width=1,color="#0000FF")
      aaa = x
      bbb = y
def on_buttona_click_callback():
u_gui.fill_rect(x=0,y=0,w=240,h=240,color="#FFFFFF")
a=u_gui.draw_line(x0=0,y0=240,x1=240,y1=240,width=2,color="#000000")
def on_buttonb_click_callback():
print(requests.post("http://713b2462d056429b93195bfb0accf468-cn-shanghai.alicloudapi.com", data={'node_8dd82d30': 0,'aaa':1}))

u_gui=GUI()
Board().begin()
u_gui.on_mouse_move(mouse_move)
u_gui.on_a_click(on_buttona_click_callback)
u_gui.on_b_click(on_buttonb_click_callback)
import requests
my_variable = 0
aaa = 0
bbb = 0
a=u_gui.draw_line(x0=0,y0=240,x1=240,y1=240,width=2,color="#000000")
a=u_gui.add_button(text="开始",x=100,y=250,w=40,h=30,onclick=button_click1)
a=u_gui.add_button(text="停止",x=150,y=250,w=40,h=30,onclick=button_click2)
a=u_gui.add_button(text="不要按",x=55,y=250,w=40,h=30,onclick=button_click3)
buzzer.stop()

while True:
pass
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