# Lego Spike Prime Butterfly instructions

If an object is not detected because the ultrasonic sensor is larger than 7cm,
the ultrasonic sensor's eyes are lit and the motor is stopped. And if an object is detected because the ultrasonic sensor object is smaller than 7cm,
the ultrasonic sensor's eyes are turned off and the motor rotates 10 times
Butterfly model motor: A, Ultrasonic sensor: B
You can get more information on the website below
blog.naver.com...
We would like to inform you that resources other than spike prime have been used for assembly drawings