At the beginning of the prorgam add a wait block for the ultrasonic sensor in order to detect prey.

This task can be found in these courses:

1. Level D1. "Animal...
2. Lesson 3 - Scorpion
3. At the beginning ...

1. Robotics with LEG...
2. Catching prey wit...
3. At the beginning ...

1. Robotics with LEG...
2. Catching prey wit...
3. At the beginning ...