Merge pull request #77 from bboortz/hello2

Close added to hello_world app

hello_world/main.py

@@ -5,11 +5,23 @@ ___license___      = "MIT"
 ___dependencies___ = ["sleep", "app"]
 ___categories___   = ["EMF"]
 
-import ugfx, os, time, sleep, app
+import ugfx, sleep, app
+from tilda import Buttons
 
 
 # initialize screen
 ugfx.init()
 ugfx.clear()
 
-ugfx.text(5, 5, "Hello World!", ugfx.BLACK)
+# show text
+ugfx.text(5, 5, "Hello World!!", ugfx.BLACK)
+
+
+# waiting until a button has been pressed
+while (not Buttons.is_pressed(Buttons.BTN_A)) and (not Buttons.is_pressed(Buttons.BTN_B)) and (not Buttons.is_pressed(Buttons.BTN_Menu)):
+    sleep.wfi()
+
+
+# closing
+ugfx.clear()
+app.restart_to_default()