https://github.com/harbaum/dotlite

DOTTI compatible DIY 8x8 bluetooth LE led matrix
https://github.com/harbaum/dotlite

bluetooth-low-energy esp32 ws2812b

Last synced: about 1 month ago
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DOTTI compatible DIY 8x8 bluetooth LE led matrix

• Host: GitHub
• URL: https://github.com/harbaum/dotlite
• Owner: harbaum
• Created: 2021-06-10T16:38:43.000Z (almost 5 years ago)
• Default Branch: main
• Last Pushed: 2021-06-13T15:48:42.000Z (almost 5 years ago)
• Last Synced: 2025-10-11T00:59:25.152Z (8 months ago)
• Topics: bluetooth-low-energy, esp32, ws2812b
• Language: C++
• Homepage:
• Size: 742 KB
• Stars: 2
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# Dotlite

Lightweight implementation of a

[DOTTI](https://www.wittidesign.com/products/dotti-one) like device

compatible with the [Webbluetooth LED Display

Demo](https://github.com/WebBluetoothCG/demos/tree/gh-pages/bluetooth-led-display) and [dotti-interfacing](https://github.com/MartyMacGyver/dotti-interfacing).

![dotlite in browser](browser.jpg)

This device is in no way related to the original dotti. It instead

implements only the interface expected by the Webbluetooth LED Display

Demo. It's therefore probably incompatible with any other software meant

to be used with the DOTTI.

The hardware is rather simple and cheap as it consists of an

ESP32 develoment board and a 8x8 WS2812b RGB LED matrix display only. Both

are connected using three wires:

  * ESP32 VIN goes to V+ on the display

  * ESP32 GND goes to V- on the display

  * ESP32 D13 goes to IN on the display

![rear view](rear.jpg)

The Arduino sketch requires the Adafruit NeoPixel ĺibrary which can be

installed from within the Arduino IDE using the Arduino library manager.

![parts](parts.jpg)