Lab 8-Pico W Introduction

Lab08/CircuitPython/Code/blink_external_cycle3.py

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+# Program for CircuitPython on a Pico W
+
+import board
+import digitalio
+import time
+
+print("\nCircuitPython example code")
+print("Cycle the onboard LED and LED's connected to GP15 & GP16\n")
+
+
+ledList = ['LED', 'GP15', 'GP16']
+ledPinList = [
+digitalio.DigitalInOut(board.LED),
+digitalio.DigitalInOut(board.GP15),
+digitalio.DigitalInOut(board.GP16)
+]
+
+def cycleLED(ledID,timeDelay):
+    ledID.value = True
+    time.sleep(timeDelay)
+    ledID.value = False 
+    time.sleep(timeDelay)
+    
+def turnOffLED(ledPinList):
+    for pinID in ledPinList:
+        pinID.value = False
+
+
+for pinID in ledPinList:
+	pinID.direction = digitalio.Direction.OUTPUT
+
+print("Turn off all LED's")
+turnOffLED(ledPinList)
+
+timeDelay = .25
+print("Cycle LEDs")  
+
+while True:
+  
+  print("Cycle start")
+  cycleLED(ledPinList[0],timeDelay)
+  cycleLED(ledPinList[1],timeDelay)
+  cycleLED(ledPinList[2],timeDelay)
+  cycleLED(ledPinList[1],timeDelay)
+  
+#  time.sleep(1)   #wait for one second
+
+