I managed to mess with the provided .py code. The variables I managed to change and which I understood while changing were the most basic. Color, size, form. When I was done with my first try it looked like this:

After that I looked up some Tkinter codes here. And I managed to have a second window open with this code:

import Tkinter import tkMessageBox
top = Tkinter.Tk()
def helloCallBack():

tkMessageBox.showinfo( "Hall9000", "Can't let you do that Dave...")

B = Tkinter.Button(top, text ="Quit Hal9000", command = helloCallBack)
B.pack()

I don't understand why the windows open together but when you press the button another window appears with my message in there. I have tried to implement other codes but all have been unsuccesfull. This is because I have no idea why stuff works or doesn't work or what the specific codes mean. This should really be explained.

the code I used:

# # hello.temp.45.py # # receive and display temperature # hello.temp.45.py serial_port # # Neil Gershenfeld # CBA MIT 3/27/12 # Variant by Rein den Hengst # Fab Academy 4/12/13 # # (c) Massachusetts Institute of Technology 2012 # Permission granted for experimental and personal use; # license for commercial sale available from MIT # from Tkinter import * from numpy import log import serial WINDOW = 1000 # window size eps = 0.5 # filter time constant filter = 0.0 # filtered value def idle(parent,canvas): global filter, eps WINDOW = root.winfo_width() # # idle routine # byte2 = 0 byte3 = 0 byte4 = 0 ser.flush() while 1: # # find framing # byte1 = byte2 byte2 = byte3 byte3 = byte4 byte4 = ord(ser.read()) if ((byte1 == 1) & (byte2 == 2) & (byte3 == 3) & (byte4 == 4)): break low = ord(ser.read()) high = ord(ser.read()) value = 256*high + low if (value > 511): value -= 1024 V = 2.5 - value*5.0/(20.0*512.0) #balkje en drawing R = 10000.0/(5.0/V-1.0)#balkje en drawing # NHQ103B375R5 # R25 10000 (O) # B (25/85) 3750 (K) # R(T(C)) = R(25)*exp(B*(1/(T(C)+273.15)-(1/(25+273.15)))) B = 3750.0 R25 = 10000.0 T = 1.0/(log(R/R25)/B+(1/(20.0+273.15))) - 273.15 filter = (1-eps)*filter + eps*T x = int(.2*WINDOW + (.9-.2)*WINDOW*(filter-20.0)/10.0) canvas.itemconfigure("text",text="%.2f"%filter) canvas.coords('rect1',.2*WINDOW,.05*WINDOW,x,.2*WINDOW) canvas.coords('rect2',x,.05*WINDOW,.9*WINDOW,.2*WINDOW) canvas.update() parent.after_idle(idle,parent,canvas) # # check command line arguments # if (len(sys.argv) != 2): print "command line: hello.temp.45.py serial_port" sys.exit() port = sys.argv[1] # # open serial port # ser = serial.Serial(port,9600) ser.setDTR() # # start plotting # root = Tk() root.title('Hal9000 temp (q to exit)') root.bind('q','exit') canvas = Canvas(root, width=WINDOW, height=.25*WINDOW, background='green')#background canvas.create_text(.1*WINDOW,.125*WINDOW,text=".33",font=("Helvetica", 24),tags="text",fill="#000000") #changed to black canvas.create_oval(.2*WINDOW,.05*WINDOW,.3*WINDOW,.2*WINDOW, tags='rect1', fill='#b00000')#red bar canvas.create_oval(.3*WINDOW,.05*WINDOW,.9*WINDOW,.2*WINDOW, tags='rect2', fill='#0000b0')#blue bar canvas.pack() root.after(100,idle,root,canvas) import tkMessageBox top = Tk() top.title('Hal9000') def helloCallBack(): tkMessageBox.showinfo( "Hall9000", "Can't let you do that Dave...") B = Button(top, text ="Quit Hal9000", command = helloCallBack) B.pack() root.mainloop()




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