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Case 09: Autonomous Obstacle Avoidance


The Cutebot avoids the obstacles automatically to move forward.


1 x Cutebot Kit

1 x Ultrasonic Sensor

Software Platform

MicroSoft makecode


Step 1

Click the "Advanced" to see more choices in the MakeCode drawer.

A codebase is required for Cutebot programming, click “Add Package” at the bottom of the drawer, search Cutebot in the dialogue box and download it.

Note: If you met a tip indicating incompatibility of the codebase, you can continue with the tips or build a new project there.

Step 2

Drag "go straight at full speed" brick into the On start brick.

Step 3

Set a Sonar variable to save the detected Cm value in the Forever brick.

If the detected value is between 2 and 20 which means there is obstacle being detected in the front 20cm far, set the left wheel speed to 0 and right to -50, make a right turn at a random time to complete an obstacle avoidance.

If not, move forward at its full speed.



You can also download it directly below:


The Cutebot moves forward at its full speed and will make a right turn to keep going if any obstacle being detected.


Why should the detected value be over 2cm ?


Q: After connecting the Sonar:bit, the Cutebot doesn't work. A: Please have a check on the connections of the Sonar:bit, make sure that you connect to the SR04 connection rather than the IIC.

Relevant Files