Lock axle position

This motor block will stop the motor and apply an active break

The coding block is compatible with all hubs.

The coding block is compatible with motors that have a rotation sensor.

Device name	Compatible
WeDo 2.0 Medium Motor	no
Medium Linear Motor	yes
Technic™ Large Motor	yes
Technic™ XL Motor	yes
Technic™ Small Angular Motor	yes
Medium Angular Motor	yes
Large Angular Motor	yes
Train Motor	no
Move Hub	yes

LEGO® Powered UP App coding example: Apply active breaks to a motor

For this example, you will need:

• Hub – any hub from Hubs compatible with LEGO® Powered UP App list will work
• Motor – any motor that has rotation sensor from Motors compatible with LEGO® Powered UP App list will work

Step 1: Add coding blocks

• Flow block – Start  
• Motor block – Run motor select hub port A, select power 100
• Flow block – Start on condition
• Motor block – Lock axle position select hub port A,
• Widget block – Button widget, select address 0

Step 2: Add Canvas widget

• Add button, select address 0

Step 3: Setup motor and hub

• Connect the motor to port A
• Connect the hub to a device that runs the Powered UP App

Step 4: Run the program. Observe when the program starts, the motor starts spinning at full power.

Press button: observe that after pressing the button motor immediately stopped

Note: At the moment of writing, this block appears to behave same as Stop motor, if you noticed some different behaviour, please feel free to share your notes in comments below.

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