Teacher Notes: Pro Preview

Example solution to the tasks in the section "Gesture detection from left to right":

# Create your objects here. 
ev3 = EV3Brick() 

left_touch = TouchSensor(Port.S1)
right_touch = TouchSensor(Port.S2)

left_motor = Motor(Port.B)
right_motor = Motor(Port.C)

# Write your program here.
ev3.speaker.beep()

while not left_touch.pressed():
    pass 
while left_touch.pressed():
    pass 
wait(200)
if right_touch.pressed():
    left_motor.run(1000)
    right_motor.run(1000)
    wait(2000)

Example solution to the task "Change your program so that the robot detects gestures from right to left.":

# Create your objects here. 
ev3 = EV3Brick() 

left_touch = TouchSensor(Port.S1) 
right_touch = TouchSensor(Port.S2) 

left_motor = Motor(Port.B) 
right_motor = Motor(Port.C) 

# Write your program here. 
ev3.speaker.beep() 

while not right_touch.pressed():  
    pass
while right_touch.pressed():  
    pass  
wait(200) 
if left_touch.pressed(): 
    left_motor.run(1000) 
    right_motor.run(1000) 
    wait(2000)

Example solution to the tasks in the section "Dynamic detection of gestures from left to right":

# Create your objects here. 
ev3 = EV3Brick() 

left_touch = TouchSensor(Port.S1) 
right_touch = TouchSensor(Port.S2) 

left_motor = Motor(Port.B) # Write your program here.
right_motor = Motor(Port.C) 

# Write your program here. 
ev3.speaker.beep() 

while True:  
    if left_touch.pressed(): 
        while left_touch.pressed():
            pass
        wait(200)
        if right_touch.pressed(): 
            left_motor.run_angle(1000, 360, Stop.HOLD, False)
            right_motor.run_angle(1000, 360)

Example solution to the task "Program another check inside the loop, that lets the robot check right-to-left gestures.":

# Create your objects here. 
ev3 = EV3Brick()

left_touch = TouchSensor(Port.S1)
right_touch = TouchSensor(Port.S2)

left_motor = Motor(Port.B)
right_motor = Motor(Port.C)

# Write your program here.
ev3.speaker.beep()

while True: 
    if left_touch.pressed():
        while left_touch.pressed():
            pass
        wait(200)
        if right_touch.pressed():
            left_motor.run_angle(1000, 360, Stop.HOLD, False)
            right_motor.run_angle(1000, 360)

    if right_touch.pressed():
        while right_touch.pressed():
            pass
        wait(200)
        if left_touch.pressed():
            left_motor.run_angle(1000, -360, Stop.HOLD, False)
            right_motor.run_angle(1000, -360)