Tumult Company Blog

Featured Project: Smiley Karuta


We’re excited to highlight a captivating project recently shared by Natsuki on the Tumult Forums, featuring some of the most charming animations we’ve seen.


Natsuki’s project leverages the Felica reader, a contactless RFID reader, to create a unique interactive experience. By using object detection, different animations are triggered based on the object presented to the reader. This innovative approach blends Japanese tradition with modern digital storytelling.

More on this project from Natsuki:

In Japan, there is a traditional card game called Karuta, where a reader reads aloud the text on a picture card, and the players must find and take the card with the corresponding proverb or lesson. We have adapted this into a digital format, creating a digital Karuta project that brings a smile. When you hold up a Karuta card (illustration) related to the projected movie to a contactless reader, a story related to the depicted Karuta unfolds, allowing you to enjoy the narrative. All animations and scenes were created with Hype and exported to 20 HTML files. Playing through all of them takes about 30 minutes. We use a Felica reader for the device and a JavaScript module to operate it, but since it was challenging to handle the JavaScript functions within Hype, we embedded an HTML page for processing within Hype, making it work invisibly.

You may also love Natsuki’s homepage, filled with fun hand drawn animations.

You can view this project and the animation projection + interactivity in the video below:

Smiley Karuta

Preview one of the animations exported from Hype:

One of the 20 animations built in Tumult Hype for this project