#3DxMusic – AirHarp – An open source ultrasonic digital autoharp! #3DxElectronics #3DThursday #3DPrinting

Pasted Image 12 19 13 8 47 AM

Here’s the 3D printed enclosure for the AirHarp – An open source ultrasonic digital autoharp. And check out the video and audio samples below to learn more about this open source music project, and see AirHarp on Adafruit’s Show and Tell!

All the sounds you hear were played on the AirHarp with the exception of the drum tracks, which are canned samples. I could have used the AirHarp for the drums as well, but I’m no percussionist and I have trouble conceptualizing music in purely rhythmic terms. Thus I will leave the exploration of the AirHarp’s percussion capabilities to someone else.

How does it work?

The AirHarp emits a beam of ultrasound that’s undetectable to the human ear. It bounces this beam off your free hand to determine the distance between your hand and the device. This is a form of ultrasonic sonar ranging. A microcontroller continuously monitors the output of this sensor, along with the status of each pushbutton. Calculations are performed to decipher the coded chord input and compute the desired note pitches based on readings from the ultrasound. A list of active notes is maintained and used to determine which notes to turn off and when. Information on which notes to activate and deactivate is coded into a serial data format called MIDI and transmitted out of the microcontroller into either a synthesizer module or to an outboard computer through a USB cable. The synthesizer module or computer then converts these “note on/off” commands into audible sound.

Read More.

Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.

Join 7,500+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython in 2018 – Python on Microcontrollers is here!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more https://www.instagram.com/adafruit/

Maker Business — Rethink Robotics closes shop. Long live collaborative robots #makerbusiness

Wearables — Zip it up

Electronics — Serial overkill

Biohacking — Biohacking Resources – Books, Talks and Podcasts

Python for Microcontrollers — CircuitPython @ Hackaday SuperCon #ICYMI @circuitpython @micropython @ThePSF #Python

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !

No Comments

No comments yet.

Sorry, the comment form is closed at this time.