Как я могу передать вывод программы в wxpython listctrl?

Question

Я делаю проект для школы, которая является платформой для измерения температуры с малиной pi, и я пытаюсь передать мои данные в графический интерфейс. Пожалуйста помоги.

У меня проблема с помещением вывода в wxListCtrl. Это мой код:

import spidev 
import time 
import math 
from time import strftime 
import string 
import os 

spi = spidev.SpiDev() 
spi.open(0, 0) 
filename = strftime("%d-%b-%Y %H_%M_%S") 

def read_adc(adcnum): 
# read SPI data from MCP3304 chip, 8 possible adc's (0 thru 7) 
    if adcnum > 7 or adcnum < 0: 
     return -1 

# Frame format: 0000 1SCC | C000 000 | 000 000 
    r = spi.xfer2([((adcnum & 6) >> 1)+12 , (adcnum & 1) << 7, 0]) 
    adcout = ((r[1] & 15) << 8) + r[2] 
    return adcout 

def make_sure_path_exists(path): 
    try: 
     os.makedirs(path) 
    except OSError: 
     if not os.path.isdir(path): 
      raise 

def get_temperature(adc): 
# read thermistor voltage drop and convert it to degrees of Celsius 
    value = read_adc(adc)    #read the adc 
    volts = (value * 3.3)/4095  #calculate the voltage 

    # check if the thermistor is connected to this channel 
    if volts > 3.2: 
     return 0 

    ohms = (volts*10000)/(3.3-volts) #calculate thermistor resistance 
    lnohm = math.log1p(ohms)   #take ln(ohms) 

    # a, b, & c values from www.rusefi.com/Steinhart-Hart.html 
    # 0-50 C 
    a = 0.001125256672 
    b = 0.0002347204473 
    c = 0.00000008563052732 

    # Steinhart Hart Equation 
    # T = 1/(a + b[ln(ohm)] + c[ln(ohm)]^3) 
    t1 = (b*lnohm)      #b[ln(ohm)] 
    c2 = lnohm       #c[ln(ohm)] 
    t2 = c*math.pow(c2,3)    #c[ln(ohm)]^3 
    temp = 1/(a + t1 + t2)    #calcualte temperature in K 
    tempc = temp - 273.15    #K to C 

    #print out info 
    #print ("%4d/4095 => %5.4f V => %6.1f ? => %5.2f °K => %3.1f °C from adc  %d" % (value, volts, ohms, temp, tempc, adc)) 
    print ("%3.1f °C from sensor %d" % (tempc, adc)) 

    return tempc 

make_sure_path_exists("./data") 
'''while True: 
    #write to log 
    log = open("./data/"+filename+'.csv', 'a') #open a text file for logging 
    log.write(strftime("%d/%m/%y,%H:%M:%S")) 
    for x in range (0,8): 
     log.write(",%3.1f" % (get_temperature(x))) 
    log.write(strftime("\n")) 
    log.close() 
    time.sleep(5)''' 

class Myframe(wx.Frame): 

    def Close(self, event): 
     dialog=wx.MessageDialog(self, 'For sure?', 'End work', style=wx.OK | wx.CANCEL) 
     x=dialog.ShowModal() 
     dialog.Destroy() 
     if x == wx.ID_OK: 
      self.Close() 


    def __init__(self): 
     wx.Frame.__init__(self, None, wx.ID_ANY, "Temperature Monitoring", size=(1024,760)) 
     panel = wx.Panel(self, wx.ID_ANY) 
     self.index = 0 


     MenuListwa=wx.MenuBar() 
     ProgMenu=wx.Menu() 
     ProgMenuItem1=ProgMenu.Append(wx.ID_ANY,'Temperature','Read data') 
     self.Bind(wx.EVT_MENU, self.OpenData, ProgMenuItem1) 
     MenuListwa.Append(ProgMenu,'Data') 

     ProgMenu=wx.Menu() 
     ProgMenuItem1=ProgMenu.Append(wx.ID_EXIT, 'End', 'End program') 
     MenuListwa.Append(ProgMenu, 'Exit') 
     self.Bind(wx.EVT_MENU, self.Close, ProgMenuItem1) 
     self.SetMenuBar(MenuListwa) 


     self.list_ctrl = wx.ListCtrl(panel, size=(-1,600), 
         style=wx.LC_REPORT 
         |wx.BORDER_SUNKEN 
         ) 
     self.list_ctrl.InsertColumn(0, 'Record', width=100) 
     self.list_ctrl.InsertColumn(1, 'Temperature', width=800) 

     btn = wx.Button(panel, label='Add record') 
     btn.Bind(wx.EVT_BUTTON, self.onStartTimer) 

     self.timer = wx.Timer(self, wx.ID_ANY) 
     self.Bind(wx.EVT_TIMER, self.add_records, self.timer) 

     sizer = wx.BoxSizer(wx.VERTICAL) 
     sizer.Add(self.list_ctrl, 0, wx.ALL|wx.EXPAND, 5) 
     sizer.Add(btn, 0, wx.ALL|wx.CENTER, 5) 
     panel.SetSizer(sizer) 

def onStartTimer(self, event): 
     print 'rekordy' 
     self.timer.Start(10) 

def add_records(self, event): 
    while True: 
     Temp=[] 
     for ch in range(0,8): 
      Temp.append(get_temperature(ch)) 
     line = "Record %s" % self.index 
     self.list_ctrl.InsertStringItem(self.index, line) 
     add1 = self.list_ctrl.SetStringItem(self.index, 1, Temp[self.index]) 
     for i in Temp: 
      add1 += self.list_ctrl.SetStringItem(self.index, 1, Temp[self.index]) 
     self.index += 1 
     time.sleep(30) 


# Run 
if __name__ == "__main__": 
    app = wx.App(False)   
    frame = Myframe() 
    frame.Show() 
    frame.Update() 
    app.MainLoop() 

сниппет:

def onStartTimer(self, event): 
    print 'records' 
    self.timer.Start(10) 
    time.sleep(10) 

def add_record(self, event): 
    while True:   
     for ch in range(0,8): 
      Temp.append(get_temperature(ch)) 
     line = "Record %s" % self.index 
     self.list_ctrl.InsertStringItem(self.index, line) 
     add1 = self.list_ctrl.SetStringItem(self.index, 1, str(Temp[self.index])) 
     for i in Temp: 
      add1 += self.list_ctrl.SetStringItem(self.index, 1, str(Temp[self.index])) 
     self.index += 1 

Answer 1

вам нужно создать wx.Timer и привязать его к событию, которое будет обновлять список вашего контроля, добавьте в конце фрейма INIT метод

TIMER_ID = wx.NewId() 
self.timer = wx.Timer(id=TIMER_ID) 
self.Bind(wx.EVT_TIMER, self.on_timer, id=TIMER_ID) 
self.timer.Start(10*1000) 


def on_timer(self, event): 
    self.add_records() 


def add_records(self): 
    for ch in range(0, 8): 
     temp = get_temperature(ch) 
     line = "Record %s" % self.index 
     self.list_ctrl.InsertStringItem(self.index, line) 
     self.list_ctrl.SetStringItem(self.index, 1, temp) 
     self.index += 1