Zelda Heart Reacts to Twitter using #AdafruitIO #IFTTT

Zelda fans – it’s time to put down your Ocarina and pick up a soldering iron! [Jeremy S. Cook] built a glowing 8-bit Zelda heart to light up differently depending on what people are tweeting him. The heart-shaped enclosure was built using a CNC mill to cut two layers of MDF which are held together using super strong (neodymium) magnets.

As for the software-side, he used IFTTT to respond to Twitter interactions and sends this data to an Adafruit IO feed. The ESP8266 is programmed using the Arduino IDE to receive Adafruit IO feed data, and activate the red LED-strip. His code is public on GitHub.

If you would like to control the heart, you’re in luck! The heart is currently located in his office and you can send commands to it over twitter:

“on zelda @jeremyscook” = both sides of the heart on – full health!

“half zelda @jeremyscook” = one side of the heart on – hit once.

“off zelda @jeremyscook” = both sides of the heart turn off – start over at the beginning 🙁

What would you do with an internet-connected Zelda Heart? Let us know in the comments.


As 2022 starts, let’s take some time to share our goals for CircuitPython in 2022. Just like past years (full summary 2019, 2020, and 2021), we’d like everyone in the CircuitPython community to contribute by posting their thoughts to some public place on the Internet. Here are a few ways to post: a video on YouTub, a post on the CircuitPython forum, a blog post on your site, a series of Tweets, a Gist on GitHub. We want to hear from you. When you post, please add #CircuitPython2022 and email circuitpython2022@adafruit.com to let us know about your post so we can blog it up here.

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.

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CircuitPython – The easiest way to program microcontrollers – CircuitPython.org


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