Piano

Capacitive Touch Piano Module

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Overview

Piano is a DUELink microcomputer shaped like a piano keyboard — capacitive touch pads laid out as keys, multiple octaves, an on-board buzzer, and five status LEDs. Alligator-clip holes at the top let students play notes by touching fruit, foil, or other conductive objects.

Ships with MicroBlocks firmware pre-loaded, so block coding works out of the box. Or code it in Python, JavaScript, .NET, Arduino, or C++. Mounting holes on the body let you bolt on additional DUELink modules.

Pick Piano for music-themed STEM activities, accessibility projects, or any setting where the "input" needs to be something more tangible than a button press.

Key features • Piano key layout • Multiple octave selection • 5 User LEDs • Alligator clip holes • Holey section • On-board buzzer • USB Type C • 111.5x75.5mm Overall Dimension

Resources 📄 Schematics 🔩 3D STEP file PID: 0x0C0005

🌿 Cables not included

Modules ship without cables to reduce waste. Some specialty boards include a USB cable; for the rest, see Cables to add cables to your order.

Commands

Commands this module accepts. See Samples for runnable code in popular host languages.

Function	Description
DVer()	This driver version.
SetLED(i,s)	Set specific LED to on or off.
SetLedAll(o)	Set all leds 1,2,3,4,5 to on(1) or off(0).
TLArrow()	return 1 if touched on left arrow.
TRArrow()	return 1 if touched on right arrow.
TPad(i)	return 1 if touched on pad i.

Peek under the hood

The script below is this module's driver — it teaches the hardware how to respond to the commands listed above. It ships pre-loaded from the factory; most users never need to open it.

Piano Driver

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See full example on GitHub

Samples

Example code that calls this module's commands from popular host languages.

tip

New here? See Get Started to connect a module and send your first command.

Python

Python Sample

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See full example on GitHub

JavaScript

JavaScript Sample

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See full example on GitHub

.NET

.NET Sample

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See full example on GitHub

On-Module Code

Code that runs directly on this module's MCU. See how On-Module Code allows modules to run standalone.

Script

This example runs using the default DUELink Internal Engine using its Scripting Language, and it expects the module's driver to be loaded first, see the Commands Tab.

Standalone Script Sample

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See full example on GitHub

Arduino IDE

See Arduino IDE page for more info.

Standalone Arduino Sample

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See full example on GitHub

MicroBlocks

This project runs standalone. It assumes that the MicroBlocks firmware is already loaded on the module.

Click the button below to open, edit, and run the project directly on the MicroBlocks website.

Ordering Info

Product	Part Number	Price
DUELink Piano	GDL-SPPIANO-B	$14.95

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