A customizable LED lightstick built with TinyGo, featuring multiple visual effects for concerts, events, and fan merchandise.
- Microcontroller compatible with TinyGo
- WS2812 LED strip (56 LEDs total)
- Push button for effect switching
| Component | Link |
|---|---|
| 3D printed parts | https://github.com/conejoninja/lightstick/tree/main/hardware/3D |
| Waveshare RP2040-zero | https://www.waveshare.com/wiki/RP2040-Zero |
| WS2812b Led ring Addressable 8/16 | https://es.aliexpress.com/item/1005002287819725.html |
| WS2812B WS2812 4Pin RGB Led Chip | https://es.aliexpress.com/item/32560280169.html |
| 5V WS2812B RGBIC COB LED strip WS2812 | https://es.aliexpress.com/item/1005009100544712.html |
| Button (6x6x5mm) | https://es.aliexpress.com/item/1005005275624018.html |
| Switch (3.9x8.5mm) | https://es.aliexpress.com/item/1005010427557422.html |
| Boost Module Step Up Board 5V | https://es.aliexpress.com/item/1005007067554590.html |
| PH2.0 plug 18650 lithium ion rechargeable battery 3.7V 3000mAh | https://es.aliexpress.com/item/1005009560071907.html |
| 2 Slots AA Battery Holder (instead of the battery) | https://es.aliexpress.com/item/1005005513642434.html |
The lightstick consists of concentric rings:
| Segment | LEDs | Position |
|---|---|---|
| Outer Ring | 16 | 0-15 |
| Middle Ring | 8 | 16-23 |
| Center | 1 | 24 |
| Logo | 1 | 25 |
| Space Ring | 30 | 26-55 |
| Component | Pin |
|---|---|
| Button | D7 |
| LED Data | D2 |
All LEDs pulse smoothly while cycling through rainbow colors.
Fire effect emanating from center outward with rainbow color cycling:
- Center: Bright core with minimal flicker
- Middle ring: Intense flames
- Outer ring: Dancing flames
- Space ring: Fading embers with occasional sparks
Rainbow color on all rings with the space ring spinning rapidly (trail effect).
Same as speed but with slower spinning on the space ring.
tinygo flash -target=waveshare-rp2040-zero .Press the button to cycle through effects.
A small building guide in this article.
This project is licensed under the CERN Open Hardware Licence Version 2 - Permissive (CERN-OHL-P v2) for hardware designs and the MIT License for software.
MIT License
Copyright (c) 2025 Daniel Esteban (conejo@conejo.me)
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
Copyright (c) 2025 Daniel Esteban (conejo@conejo.me)
This source describes Open Hardware and is licensed under the CERN-OHL-P v2.
You may redistribute and modify this source and make products using it under
the terms of the CERN-OHL-N v2 (https://ohwr.org/cern_ohl_p_v2.txt).
This source is distributed WITHOUT ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING
OF MERCHANTABILITY, SATISFACTORY QUALITY AND FITNESS FOR A PARTICULAR PURPOSE.
Please see the CERN-OHL-N v2 for applicable conditions.