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Autonomous Systems (13 to 24)/IoT and Robotics_L16/Lesson 16 LightFollower.py

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+from microbit import *
+
+leftA = pin0
+leftB = pin8
+rightA = pin1
+rightB = pin12
+lightSensor = pin2
+lightSelect = pin16
+
+while True:
+    lightSelect.write_digital(0) # select left sensor
+    rval = lightSensor.read_analog()
+    leftA.write_analog(rval)
+    leftB.write_digital(0)
+    sleep(1)
+    lightSelect.write_digital(1) # select right sensor
+    rval = lightSensor.read_analog()
+    rightA.write_analog(rval)
+    rightB.write_digital(0)
+    sleep(1)

Autonomous Systems (13 to 24)/IoT and Robotics_L16/Lesson 16 PWM_Python.py

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+# Add your Python code here. E.g.
+from microbit import *
+
+leftA = pin0
+leftB = pin8
+rightA = pin1
+rightB = pin12
+
+def forward (speedpct):
+    speed = speedpct * 10.23
+    leftA.write_analog(speed)
+    leftB.write_digital(0)
+    rightA.write_analog(speed)
+    rightB.write_digital(0)
+
+def reverse (speedpct):
+    speed = speedpct * 10.23
+    leftA.write_analog(1023-speed)
+    leftB.write_digital(1)
+    rightA.write_analog(1023-speed)
+    rightB.write_digital(1)
+
+def spinLeft (speedpct):
+    speed = speedpct * 10.23
+    leftA.write_analog(1023-speed)
+    leftB.write_digital(1)
+    rightA.write_analog(speed)
+    rightB.write_digital(0)
+
+def spinRight (speedpct):
+    speed = speedpct * 10.23
+    leftA.write_analog(speed)
+    leftB.write_digital(0)
+    rightA.write_analog(1023-speed)
+    rightB.write_digital(1)
+
+def stop():
+    leftA.write_analog(0)
+    leftB.write_digital(0)
+    rightA.write_analog(0)
+    rightB.write_digital(0)
+
+while True:
+    display.show(Image.ARROW_N)
+    forward(50)
+    sleep(3000)
+    display.show(Image.ARROW_E)
+    spinRight(50)
+    sleep(3000)
+    display.show(Image.ARROW_S)
+    reverse(50)
+    sleep(3000)
+    display.show(Image.ARROW_W)
+    spinLeft(50)
+    sleep(3000)
+    display.show(Image.HAPPY)
+    stop()
+    sleep(3000)

Autonomous Systems (13 to 24)/IoT and Robotics_L16/Lesson 16 Pixels_Python.py

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+from microbit import *
+import neopixel
+from random import randint
+
+np = neopixel.NeoPixel(pin13, 12)
+bright = 40
+
+while True:
+    for pixel_id in range(0, len(np)):
+        np[pixel_id] = (bright,0,0)
+    np.show()
+    sleep(1000)
+    for pixel_id in range(0, len(np)):
+        np[pixel_id] = (0,bright,0)
+    np.show()
+    sleep(1000)
+    for pixel_id in range(0, len(np)):
+        np[pixel_id] = (0,0,bright)
+    np.show()
+    sleep(1000)
+    for pixel_id in range(0, len(np)):
+        np[pixel_id] = (bright,bright,bright)
+    np.show()
+    sleep(1000)