A laser harp is an electronic instrument that lets you “pluck” laser beams like a harp to play notes. In this guide, you’ll learn how to build your own version of a laser harp using a Feather M4 Express or Feather RP2040, a Music Maker FeatherWing and code written in CircuitPython. VL53L4CD time of flight sensors are used to detect when you’re playing a note instead of simply detecting the break-beam. This means we can do cool stuff like use the distance data from the time of flight sensors to convert into different MIDI values such as modulation, sustain and velocity.
This project will show you how to use the Music Maker FeatherWing as a MIDI synth and use the time of flight sensors to control different MIDI parameters.
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Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.