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| class Clock(tk.Label):
_timer = None
_ctime = None
def __init__(self, *args, **kwds):
tk.Label.__init__(self, *args, **kwds)
def _update(self, delay=200):
now = time.strftime("%H:%M:%S")
self['text']='(... Reception serie ...)'
# command serie debut :
#rcv = port.read(50)
if rcv != "":
ofu = open("/home/pi/Rs_Arduino/rcv.txt","a")
tt=time.strftime("%d/%m/%y;%H;%M;")
data=tt+rcv
ofu.write(data)
ofu.close()
# command serie fin :
if self._ctime != now:
self._ctime = self['text'] = now
self._timer = self.after(delay,self._update)
def do_start(self):
if not self._timer:
self['text']='(... Reception serie ...)'
self._update()
def do_stop(self):
if self._timer:
self.after_cancel(self._timer)
self['text'] = '(... Stop ...)'
self._timer = None
def destroy(self):
self.do_stop()
tk.Label.destroy(self)
if __name__ == '__main__':
root = tk.Tk()
root.title("Bus")
clock = Clock()
clock.pack()
#tk.Button(text='Debut de trame => (...1...0)', command=clock.do_start).pack()
tk.Button(text='Fin de trame => (nul..nul)', command=clock.do_stop).pack()
tk.mainloop() |
