In this guide we'll show you how you can create a fun little physics based hourglass gadget. Hourglasses are used to track time, and this one ends up being sort of triangle shaped, so...yah, it's a Time Triangle Thing. This project was inspired by this awesome Instagram post by @david_proyectos.

We'll go over the underlying simplified physics model also. It could be a useful approach for some other gadgets. It's all written in CircuitPython.

Hardware Items

Below we link to the specific hardware items used in this guide. However, the key ingredients are:

  • A reasonably powerful main board that can run CircuitPython and has I2C
  • LED matrix or matrices
  • Accelerometer

Therefore it's possible to come up with potentially different arrangements. For example, an accelerometer breakout could be used with a non-Feather board. Or smaller LED matrices could be used, etc. Also, the battery can be whatever size you want.

Adafruit Feather nRF52840 Sense

PRODUCT ID: 4516
The Adafruit Feather Bluefruit Sense takes our popular Feather nRF52840 Express and adds a smorgasbord of sensors...
OUT OF STOCK

Adafruit Small 1.2" 8x8 LED Matrix w/I2C Backpack - Yellow-Green

PRODUCT ID: 1051
What's better than a single LED? Lots of LEDs! A fun way to make a small display is to use an 8x8 matrix or a
$10.95
IN STOCK

Lithium Ion Polymer Battery - 3.7v 350mAh

PRODUCT ID: 2750
Lithium ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery...
$6.95
IN STOCK
This guide was first published on Jun 06, 2020. It was last updated on Jun 06, 2020.
This page (Overview) was last updated on Oct 21, 2020.