Lab 8-Pico W Introduction

Lab08/CircuitPython/Code/blink_external.py

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+# Program for CircuitPython on a Pico W
+
+
+import board
+import digitalio
+import time
+
+led = digitalio.DigitalInOut(board.LED)
+led15 = digitalio.DigitalInOut(board.GP15)
+led16 = digitalio.DigitalInOut(board.GP16)
+
+led.direction = digitalio.Direction.OUTPUT
+led15.direction = digitalio.Direction.OUTPUT
+led16.direction = digitalio.Direction.OUTPUT
+
+print("\nCircuitPython example code")
+print("Blink the onboard LED and LED's connected to GP15 & GP16\n")
+
+
+while True:
+  print("On")
+  led.value = True  #turn on the LED
+  led15.value = True  #turn on the LED
+  led16.value = True  #turn on the LED
+  time.sleep(1)   #wait for one second
+  print("Off")
+  led.value = False  #turn off the LED
+  led15.value = False  #turn off the LED
+  led16.value = False  #turn off the LED
+  time.sleep(1)   #wait for one second
+  
+
+

Lab08/CircuitPython/Code/blink_external2.py

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+# Program for CircuitPython on a Pico W
+
+import board
+import digitalio
+import time
+
+led = digitalio.DigitalInOut(board.LED)
+led15 = digitalio.DigitalInOut(board.GP15)
+led16 = digitalio.DigitalInOut(board.GP16)
+
+led.direction = digitalio.Direction.OUTPUT
+led15.direction = digitalio.Direction.OUTPUT
+led16.direction = digitalio.Direction.OUTPUT
+
+print("\nCircuitPython example code")
+print("Blink the onboard LED and LED's connected to GP15 & GP16\n")
+
+while True:
+  print("Start")
+  led.value = True  #turn on the LED
+  led15.value = False  #turn on the LED
+  led16.value = True  #turn on the LED
+  time.sleep(1)   #wait for one second
+  print("Off")
+  led.value = False  #turn off the LED
+  led15.value = True  #turn off the LED
+  led16.value = False  #turn off the LED
+  time.sleep(1)   #wait for one second
+  
+
+
+

Lab08/CircuitPython/Code/blink_external_cycle.py

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+# Program for CircuitPython on a Pico W
+
+import board
+import digitalio
+import time
+
+led = digitalio.DigitalInOut(board.LED)
+led15 = digitalio.DigitalInOut(board.GP15)
+led16 = digitalio.DigitalInOut(board.GP16)
+
+led.direction = digitalio.Direction.OUTPUT
+led15.direction = digitalio.Direction.OUTPUT
+led16.direction = digitalio.Direction.OUTPUT
+
+print("\nCircuitPython example code")
+print("Cycle the onboard LED and LED's connected to GP15 & GP16\n")
+
+
+def cycleLED(ledID):
+    ledID.value = True
+    time.sleep(1)
+    ledID.value = False 
+    time.sleep(1)
+    
+def turnOffLED(ledID):
+    ledID.value = False
+    
+print("Turn off all LED's")
+turnOffLED(led)
+turnOffLED(led15)
+turnOffLED(led16)
+    
+print("Cycle LEDs")  
+
+while True:
+  
+  print("Cycle start")
+  cycleLED(led)
+  cycleLED(led15)
+  cycleLED(led16)
+  
+  time.sleep(1)   #wait for one second
+

Lab08/CircuitPython/Code/blink_external_cycle2.py

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+# Program for CircuitPython on a Pico W
+
+import board
+import digitalio
+import time
+
+led = digitalio.DigitalInOut(board.LED)
+led15 = digitalio.DigitalInOut(board.GP15)
+led16 = digitalio.DigitalInOut(board.GP16)
+
+led.direction = digitalio.Direction.OUTPUT
+led15.direction = digitalio.Direction.OUTPUT
+led16.direction = digitalio.Direction.OUTPUT
+
+print("\nCircuitPython example code")
+print("Cycle the onboard LED and LED's connected to GP15 & GP16\n")
+
+
+def cycleLED(ledID):
+    ledID.value = True
+    time.sleep(1)
+    ledID.value = False 
+    time.sleep(1)
+    
+def turnOffLED(ledID):
+    ledID.value = False
+    
+print("Turn off all LED's")
+turnOffLED(led)
+turnOffLED(led15)
+turnOffLED(led16)
+    
+print("Cycle LEDs")  
+
+while True:
+  
+  print("Cycle start")
+  cycleLED(led)
+  cycleLED(led15)
+  cycleLED(led16)
+  cycleLED(led15)
+  
+  time.sleep(.25)   #wait for one second
+

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
+
+

Lab08/CircuitPython/Code/blink_external_cycle4.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)
+]
+
+ledPattern = [0, 1, 2, 1]
+
+
+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")
+  for ledTarget in ledPattern:
+      cycleLED(ledPinList[ledTarget],timeDelay)
+  
+#  time.sleep(1)   #wait for one second
+
+

Lab08/CircuitPython/Code/blink_internal.py

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+# Program for CircuitPython on a Pico W
+
+import board
+import digitalio
+import time
+
+led = digitalio.DigitalInOut(board.LED)
+led.direction = digitalio.Direction.OUTPUT
+
+print("Hello, CircuitPython!")
+
+while True:
+
+    print("On!")
+    led.value = True
+    time.sleep(1)
+    
+    print("Off!")
+    led.value = False
+    time.sleep(1)
+    

Lab08/CircuitPython/Documentation/RunCodeonPowerUp.txt

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+				Run Code on Power Up
+					(From Google AI)
+
+In CircuitPython, code automatically runs on power-up or reset if the file is named code.py. Alternatively, it will also work if named main.py. 
+
+How it Works
+When a CircuitPython board powers on, it automatically looks for and executes specific files in order: 
+
+boot.py: This file runs first, if present. It is typically used for initial setup configurations, such as re-assigning pins before the main program starts.
+
+code.py (or main.py): After boot.py finishes, the board runs the code in this file. This is where your main program loop (e.g., a while True: loop) should reside. 
+
+Steps to Make Your Code Run on Power-up
+
+Connect your board to your computer via a data-enabled USB cable. It will appear as a USB flash drive named CIRCUITPY.
+
+Open the code.py file located on the CIRCUITPY drive using a code editor like the Mu editor or VS Code.
+
+Write or paste your Python code into this file.
+
+Save the file. As soon as you save the file to the CIRCUITPY drive, the board automatically soft-reboots and runs the newly saved code.
+
+Power cycle the board. To confirm it runs on power-up, simply unplug the board and plug it back in. The program will start running immediately after the board finishes booting. 
+
+Any code in the code.py file will run every time the device is powered on or reset, without needing a computer connection (unless you want to view the serial output). 

Lab08/CircuitPython/README.md

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+# CircuitPython Files  
+
+---
+Directories & Files
+---
+CircuitPython: CircuitPython firmware for the Pico 2 W
+
+Code: CircuitPython code for the lab.
+
+Documentation: Any additional documentation files.