Merge pull request #17 from PBenja3028/master

Buttons controlling main loop example

examples/control-main.py

@@ -0,0 +1,55 @@
+#!/usr/bin/env python
+import time
+import signal
+import buttonshim
+
+print("""
+Button SHIM: control-main.py
+
+Light up the LED a different color of the rainbow with each button pressed.
+""")
+
+@buttonshim.on_press(buttonshim.BUTTON_A)
+def button_a(button, pressed):
+    global button_flag
+    button_flag = "button_1"
+
+@buttonshim.on_press(buttonshim.BUTTON_B)
+def button_b(button, pressed):
+    global button_flag
+    button_flag = "button_2"
+
+@buttonshim.on_press(buttonshim.BUTTON_C)
+def button_c(button, pressed):
+    global button_flag
+    button_flag = "button_3"
+
+@buttonshim.on_press(buttonshim.BUTTON_D)
+def button_d(button, pressed):
+    global button_flag
+    button_flag = "button_4"
+
+@buttonshim.on_press(buttonshim.BUTTON_E)
+def button_e(button, pressed):    
+    global button_flag
+    button_flag = "button_5"
+
+button_flag = "null"  
+
+while True:
+   time.sleep(.1)
+   if button_flag == "button_1":
+       buttonshim.set_pixel(0x94, 0x00, 0xd3)
+       button_flag = "null"
+   elif button_flag == "button_2":
+       buttonshim.set_pixel(0x00, 0x00, 0xff)
+       button_flag = "null"
+   elif button_flag == "button_3":    
+       buttonshim.set_pixel(0x00, 0xff, 0x00)
+       button_flag = "null"
+   elif button_flag == "button_4":       
+       buttonshim.set_pixel(0xff, 0xff, 0x00)
+       button_flag = "null"
+   elif button_flag == "button_5":   
+       buttonshim.set_pixel(0xff, 0x00, 0x00)
+       button_flag = "null"