Added another demo, this one showing off the lcd driver functionality

main.py

@@ -81,17 +81,6 @@ def timer():
     del timer_menu, timer_programs
     collect()
     return True  # disable the "Quitting" message from lcdMenu
-def lcd_big_hello():
-    import lcd_big_hello as lbh
-    lbh.run(config.LCD)
-    del lbh
-    collect()
-    return True
-def input_tests():
-    import input_tests as input_tests
-    input_tests.run(serial_output=False)
-    collect()
-    return True
 def settings():
     settings_menu = lcdMenu(config.LCD, btn_mapping, scroll_direction=True, cycle=True, hide_menu_name=False, name="SETTINGS")
     def swap_welcome():
@@ -250,7 +239,7 @@ def settings():
                     return True
                 
                 current_level -= 1
-                if current_level < 1: current_level = 3
+                if current_level < 0: current_level = 2
                 config.LCD.putstr(f"{'Log level'.center(16)}\nv {str(current_level).center(12)} ^")
             if btn_right.value() == 1:
                 sleep(0.1)
@@ -263,7 +252,7 @@ def settings():
                         pass
                     return True
                 current_level += 1
-                if current_level > 3: current_level = 1
+                if current_level > 2: current_level = 0
                 config.LCD.putstr(f"{'Log level'.center(16)}\nv {str(current_level).center(12)} ^")
         
     def reset():  # reset all user-settable configuration to the default values
@@ -307,8 +296,27 @@ def settings():
     collect()
     return True
 def run_demo_menu():
+    def lcd_driver_demo():
+        import lcd_driver_demo as ldd
+        ldd.run(config.LCD)
+        del ldd
+        collect()
+        return True
+    def lcd_big_hello():
+        import lcd_big_hello as lbh
+        lbh.run(config.LCD)
+        del lbh
+        collect()
+        return True
+    def input_tests():
+        import input_tests as input_tests
+        input_tests.run(serial_output=False)
+        del input_tests
+        collect()
+        return True
     demo_menu = lcdMenu(config.LCD, btn_mapping, scroll_direction=True, cycle=True, hide_menu_name=False, name="DEMOS")
-    demo_programs = [("LCD Demo", lcd_big_hello),
+    demo_programs = [("LCD Demo", lcd_driver_demo),
+                     ("Hello world", lcd_big_hello),
                      ("Input tests", input_tests),
                      ("Exit", demo_menu.stop)]
     demo_menu.setup(demo_programs)  # give it the callback list