Starter Guide

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Lesson 32 Ultrasonic control LED
modules
Introduction
In this lesson, let’s learn to control three LEDs with ultrasonic.
Experiment purpose:
We learned ultrasonic ranging in the previous lessons, and here we make an
expansion.
Operating steps
1. First, we need to prepare the following experimental materials:
1 * microbit
1 * microbit expansion board
1 * USB cable
1 * Ultrasonic module
3 * led module
- Several Jumper wires
2. connection diagram：