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@@ -2,11 +2,9 @@ from kivy.app import App
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from kivy.uix.widget import Widget
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from kivy.uix.button import Button
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from kivy.uix.gridlayout import GridLayout
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-from kivy.properties import (
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- StringProperty,NumericProperty,
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-)
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-from kivy.clock import Clock
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-
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+from kivy.uix.label import Label
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+from kivy.uix.textinput import TextInput
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+from kivy.lang import Builder
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import asyncio
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from bleak import BleakClient,BleakScanner
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@@ -15,39 +13,66 @@ import json
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STM32_UUID = "00001101-0000-1000-8000-00805F9B34FB"
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class InfoWidget(Widget):
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- info = StringProperty("")
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-
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def __init__(self, **kwargs):
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super(InfoWidget, self).__init__(**kwargs)
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+ self.size = (800,480)
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+ asyncio.run(self.discover_devices())
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- # asyncio.run(self.discover_devices())
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+ async def discover_devices(self):
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+ devices = await BleakScanner.discover()
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+ grid00 = GridLayout(cols=1,rows=2,width=self.width,height=self.height / 4)
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+ grid00.top = self.top
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+ self.add_widget(grid00)
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+ grid01 = GridLayout(cols=2,rows=1,width=grid00.width,height=grid00.height / 2)
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+ grid00.add_widget(grid01)
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+ grid01.add_widget(Label(text="Device Name:",width=grid00.width / 2,height=grid00.height / 2,font_size=50))
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+ deviceName = "HC-06"
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+ grid01.add_widget(TextInput(text=deviceName,width=grid00.width / 2,height=grid00.height / 2,font_size=40))
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+ connect_button = Button(text="Connect",width=grid00.width,height=grid00.height / 2,center_x=grid00.center_x,font_size=40)
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+ Builder.load_string('''
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+<Button>:
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+ id: connect_button
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+ on_touch_down: root.root.remove_widget(grid00)
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+ ''')
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+ grid00.add_widget(connect_button)
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- # async def discover_devices(self):
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- # devices = await BleakScanner.discover()
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- # for d in devices:
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- # button = Button(text=f"{d.address}: {d.name}")
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- # button.bind(on_press=lambda instance, d=d: asyncio.run(self.connect_and_receive(d.address)))
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- # self.add_widget(button)
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+ for d in devices:
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+ if d.name == deviceName:
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+ await self.connect_and_receive(d.address)
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+ self.add_widget(Label(text="Connected",width=self.width,height=self.height / 4))
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+ break
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+ # grid1 = GridLayout(cols=2,rows=5,width=self.width,height=self.height)
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+ # self.add_widget(grid1)
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+ # for num,d in enumerate(devices):
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+ # button = Button(text=f"{d.name}")
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+ # button.height = grid1.height / 5
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+ # button.width = grid1.width / 2
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+ # button.on_touch_down = lambda instance, d=d: asyncio.run(self.connect_and_receive(d.address))
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+ # grid1.add_widget(button)
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+ # if num >= 9:
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+ # break
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- # async def connect_and_receive(self, address):
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- # async with BleakClient(address) as client:
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- # if await client.is_connected():
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- # rawdata = await client.read_gatt_char()
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- # data = rawdata.decode("utf-8")
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- # if data.startswith("[") and data.endswith("]"):
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- # list = json.loads(data)
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- # self.info = "基波频率：" + str(list[0]) + "Hz\n" + \
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- # "THD：" + str(list[6]) + "%\n" + \
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- # "基波幅值：" + str(list[1]) + "V\n" + \
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- # "二次谐波：" + str(list[2]) + "V\n" + \
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- # "三次谐波：" + str(list[3]) + "V\n" + \
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- # "四次谐波：" + str(list[4]) + "V\n" + \
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- # "五次谐波：" + str(list[5]) + "V\n"
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- # else:
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- # self.info = "传输数据出错"
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- # return
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- # else:
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- # print("Failed to connect to device.")
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+ async def connect_and_receive(self, address):
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+ async with BleakClient(address) as client:
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+ if await client.is_connected():
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+ rawdata = await client.read_gatt_char(STM32_UUID)
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+ data = rawdata.decode("utf-8")
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+ if data.startswith("[") and data.endswith("]"):
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+ list = json.loads(data)
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+ info = "基波频率：" + str(list[0]) + "Hz\n" + \
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+ "THD：" + str(list[6]) + "%\n" + \
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+ "基波幅值：" + str(list[1]) + "V\n" + \
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+ "二次谐波：" + str(list[2]) + "V\n" + \
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+ "三次谐波：" + str(list[3]) + "V\n" + \
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+ "四次谐波：" + str(list[4]) + "V\n" + \
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+ "五次谐波：" + str(list[5]) + "V\n"
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+ else:
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+ info = "传输数据出错"
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+ label = Label(text=info)
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+ self.add_widget(label)
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+ return
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+ else:
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+ print("Failed to connect to device.")
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def debug(self):
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# self.size = (800,480)
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grid = GridLayout(cols=2,rows=4,width=self.width,height=self.height)
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@@ -61,7 +86,7 @@ class InfoWidget(Widget):
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class STI2021A(App):
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def build(self):
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info = InfoWidget()
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- info.debug()
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+ # info.debug()
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return info
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