class ScreenVolt(Widget):
volt = NumericProperty(0)
pass
class ScreenCurr(Widget):
curr = NumericProperty(0)
pass
#Dropdown menus
humDrop = DropDown()
tempDrop = DropDown()
voltDrop = DropDown()
currDrop = DropDown()
#Humidity
#Temperature
tbtn1 = Button(text="Celcius", height=44)
tbtn1.bind(on_release=lambda tbtn1: tempDrop.select(tbtn1.text))
tempDrop.add_wdiget(tbtn1)
#Voltage
#Current
if __name__ == '__main__':
ScreenApp().run()
