50. Case 46：Rangefinder Guitar

50.1. Introduction

Build a rangefinder guitar with the Nezha Inventor’s Kit.

50.2. Quick to Start

Materials Required

Nezha Inventor’s Kit

Assembly

Components List

Build it as the assembly steps suggest:

Connection Diagram

Connect the Ultrasonic sensor to J1 on Nezha Breakout Board.

50.3. MakeCode Programming

Step 1

Click “Advanced” in the MakeCode drawer to see more choices.

For programming Ultrasonic sensor, we need to add a package. Search with ”PlanetX“, in the dialogue box and click to download it.

Notice: If you met a tip indicating that some codebases would be deleted due to incompatibility, you may continue as the tips say or create a new project in the menu.

Step 2

Code as the picture suggests

Reference

Link: https://makecode.microbit.org/_YzwYdqDiifXh

You may also download it directly:

Result

By detecting the distance between the ultrasonic sensor and the baffle, the buzzer is controlled to emit different tones.