Ultrasonic sensor flash ｜ LEGO eV3 Teaching

Friends like to use LEGO EV3 Make some short films , The ultrasonic sensor in the educational set is most suitable for making eyes .

Recently, he asked me if there is any way to make ultrasound realize 「 In a flash 」 That effect ？

As we all know, the ultrasonic sensor is always on as long as it is plugged into the port , However, this effect can be achieved in the following ways .

stay EV3 Under the software 「 sensor 」 Column , find 「 ultrasonic sensor 」 modular .

Then select... From the drop-down options of this module 「 Compare 」-「 At present / monitor 」, Add a circulation module , Run the program

 

The final effect is as follows ：

You are welcome to ask questions if you don't understand .