2. Motor Code Ordering

2.1. Question 1

Put the snippets in order to build an automated pulsing pump cycle.

The program should run the motor connected to Pin 1 for a short burst of half a second, turn it completely OFF, and wait for 1 second before repeating.

Drag and drop lines into the correct order and click to adjust indentation:

☰

☰ pin1.write_digital(1)

☰ while True:

☰ pin1.write_digital(0)

☰ sleep(500)

☰ from microbit import *

☰ sleep(1000)

2.2. Question 2

Arrange the code lines to create a manual safety override switch for a motor connected to Pin 2.

If Button A is actively pressed down, send a continuous digital high signal to run the motor. Otherwise, keep it stopped.

Drag and drop lines into the correct order and click to adjust indentation:

☰ if button_a.is_pressed():

☰ while True:

☰ pin2.write_digital(1)

☰ pin2.write_digital(0)

☰ from microbit import *

☰ sleep(250)

☰

☰ else:

2.3. Question 3

A student wants to trigger a sequence of 3 rapid motor bursts using a fixed loop tracking list.

Order the lines below to run a for loop that cycles through a list of 3 items and turns the motor on Pin 0 fully ON for a duration that is a multiple of 300 milliseconds, based on the current item in the list. After each burst, the motor should be turned OFF for 400 milliseconds.

Drag and drop lines into the correct order and click to adjust indentation:

☰ for burst_multiplier in burst_markers:

☰ pin0.write_digital(1)

☰

☰ burst_markers = [1, 3, 5]

☰ sleep(400)

☰ sleep(300 * burst_multiplier)

☰ from microbit import *

☰ pin0.write_digital(0)

2.4. Question 4

Put the lines in order to build an ongoing cycle that pulses the transistor-driven motor on Pin 0 at a low speed completely ON for one second, and then turns it to half speed for one second.

Drag and drop lines into the correct order and click to adjust indentation:

☰ while True:

☰ from microbit import *

☰ sleep(1000)

☰

☰ sleep(1000)

☰ pin0.write_analog(300)

☰ pin0.write_analog(512)

2.5. Question 5

Arrange the code lines to use Button A to turn the motor on Pin 0 to a safe startup power level of 320. Otherwise, turn the motor off completely.

Drag and drop lines into the correct order and click to adjust indentation:

☰ while True:

☰ pin0.write_analog(320)

☰ else:

☰ pin0.write_analog(0)

☰

☰ from microbit import *

☰ if button_a.is_pressed():

2.6. Question 6

Arrange the code lines to use Button A to turn the motor on Pin 0 to a safe startup power level of 320, and Button B to turn the motor to a higher power level of 512. Otherwise, turn the motor off completely.

Drag and drop lines into the correct order and click to adjust indentation:

☰ pin0.write_analog(512)

☰ elif button_b.is_pressed():

☰ pin0.write_analog(0)

☰ if button_a.is_pressed():

☰

☰ from microbit import *

☰ else:

☰ pin0.write_analog(320)

☰ while True: