# T³ Time Triangle Thing
## Overview
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](https://www.instagram.com/p/B_fP8ygjlBN/?igshid=1x72j8gdue7e) 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](https://circuitpython.org/).
## 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.
Featured
### Adafruit Feather nRF52840 Sense
[Adafruit Feather nRF52840 Sense](https://www.adafruit.com/product/4516)
The **Adafruit Feather Bluefruit Sense** takes our popular [Feather nRF52840 Express](https://www.adafruit.com/product/4062) and adds a smorgasbord of sensors to make a great wireless sensor platform. This Feather microcontroller comes with Bluetooth® Low Energy and...
Out of Stock
[Buy Now](https://www.adafruit.com/product/4516)
[Related Guides to the Product](https://learn.adafruit.com/products/4516/guides)
Featured
### Adafruit Small 1.2" 8x8 LED Matrix w/I2C Backpack - Yellow-Green
[Adafruit Small 1.2" 8x8 LED Matrix w/I2C Backpack - Yellow-Green](https://www.adafruit.com/product/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](https://www.adafruit.com/category/37_88) or a [4-digit 7-segment display](https://www.adafruit.com/category/37_103). Matrices like these are...
Out of Stock
[Buy Now](https://www.adafruit.com/product/1051)
[Related Guides to the Product](https://learn.adafruit.com/products/1051/guides)
Featured
### Lithium Ion Polymer Battery - 3.7V 350mAh
[Lithium Ion Polymer Battery - 3.7V 350mAh](https://www.adafruit.com/product/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 has a capacity of 350mAh for a total of about 1.3 Wh. If you need a larger (or smaller!) battery,
In Stock
[Buy Now](https://www.adafruit.com/product/2750)
[Related Guides to the Product](https://learn.adafruit.com/products/2750/guides)
- [Next Page](https://learn.adafruit.com/t-time-triangle-thing/the-physics-model.md)
## Guide Products
### Adafruit Feather nRF52840 Sense
[Adafruit Feather nRF52840 Sense](https://www.adafruit.com/product/4516)
The **Adafruit Feather Bluefruit Sense** takes our popular [Feather nRF52840 Express](https://www.adafruit.com/product/4062) and adds a smorgasbord of sensors to make a great wireless sensor platform. This Feather microcontroller comes with Bluetooth® Low Energy and...
Out of Stock
[Buy Now](https://www.adafruit.com/product/4516)
[Related Guides to the Product](https://learn.adafruit.com/products/4516/guides)
### Adafruit Small 1.2" 8x8 LED Matrix w/I2C Backpack - Yellow-Green
[Adafruit Small 1.2" 8x8 LED Matrix w/I2C Backpack - Yellow-Green](https://www.adafruit.com/product/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](https://www.adafruit.com/category/37_88) or a [4-digit 7-segment display](https://www.adafruit.com/category/37_103). Matrices like these are...
Out of Stock
[Buy Now](https://www.adafruit.com/product/1051)
[Related Guides to the Product](https://learn.adafruit.com/products/1051/guides)
### Lithium Ion Polymer Battery - 3.7V 350mAh
[Lithium Ion Polymer Battery - 3.7V 350mAh](https://www.adafruit.com/product/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 has a capacity of 350mAh for a total of about 1.3 Wh. If you need a larger (or smaller!) battery,
In Stock
[Buy Now](https://www.adafruit.com/product/2750)
[Related Guides to the Product](https://learn.adafruit.com/products/2750/guides)
## Related Guides
- [Adafruit Feather nRF52840 Sense](https://learn.adafruit.com/adafruit-feather-sense.md)
- [Bluetooth LE Sensor Nodes to Raspberry Pi WiFi Bridge](https://learn.adafruit.com/bluetooth-le-broadcastnet-sensor-node-raspberry-pi-wifi-bridge.md)
- [Hocus Pocus Book - Hallowing Eye](https://learn.adafruit.com/hocus-pocus-book-eye.md)
- [Light-Up Reactive Ukulele](https://learn.adafruit.com/light-up-reactive-ukulele.md)
- [Wirelessly Code your Bluetooth Device with CircuitPython](https://learn.adafruit.com/wirelessly-code-your-bluetooth-device-with-circuitpython.md)
- [CircuitPython BLE Libraries on Any Computer](https://learn.adafruit.com/circuitpython-ble-libraries-on-any-computer.md)
- [Multi-tasking with CircuitPython](https://learn.adafruit.com/multi-tasking-with-circuitpython.md)
- [LED Acrylic Sign](https://learn.adafruit.com/led-acrylic-sign.md)
- [Power Glove Wireless MIDI Controller](https://learn.adafruit.com/power-glove-bluetooth-midi-controller.md)
- [Programmable Wireless BLE Gesture Mouse](https://learn.adafruit.com/ble-wireless-gesture-mouse.md)
- [MakeCode Arcade Platformer Level Design](https://learn.adafruit.com/makecode-arcade-platform-level.md)
- [Capacitive Touch Unicorn Horn](https://learn.adafruit.com/capacitive-touch-unicorn-horn.md)
- [CLUE Altimeter](https://learn.adafruit.com/clue-altimeter.md)
- [Animated LED Sand](https://learn.adafruit.com/animated-led-sand.md)
- [Using the Bluefruit Dashboard with Web Bluetooth in Chrome](https://learn.adafruit.com/bluefruit-dashboard-web-bluetooth-chrome.md)
- [Introducing Adafruit Feather](https://learn.adafruit.com/adafruit-feather.md)