Overview
This programmable WS2812 RGB Light Bar Strip for robot projects is available in two versions (5 LEDs or 14 LEDs). It supports multiple development boards including Arduino, micro:bit, Raspberry Pi (4B/3B/PICO) and STM32 boards, and runs on a wide operating voltage range of 3.5V~7.5V.
Key Features
- WS2812 full-color RGB LEDs; each LED can be individually controlled for color and brightness
- Brightness control range: 0 to 255
- 3PIN-PH2.0 interface (VCC, GND, signal line); pin marking shown as 5V / LED / GND
- Two material options: PCB (5-LED) or FPC (14-LED, soft and bendable)
- Cascade connection: 5-LED version supports cascade (signal input + cascaded signal output); 14-LED version: No
- Solder joints at the interface are glued and reinforced before shipment
- Example lighting effects shown: Full light on, Marquee, Running light, Breathing light
Specifications
| Lamp model | WS2812 |
| Operating voltage | 3.5V~7.5V |
| Data transfer speed | 800KHZ |
| Interface | 3PIN-PH2.0 (VCC, GND, signal line) |
| Color | Full color RGB light |
| Supported control boards | Arduino; micro:bit; Raspberry Pi (4B/3B/PICO); STM32 various development boards |
5-LED RGB Light Bar Strip (PCB)
| Number of lamps | 5 |
| Material | PCB |
| Dimensions | 143mm x 12mm; 135mm (marked length) |
| Mounting hole diameter | phi3mm |
| Cascade | Yes (with cascade socket; signal input + cascaded signal output) |
| Interfaces | 1 x input (PH2.0-3PIN) + 1 x output (PH2.0-3PIN) |
14-LED RGB Light Strip (FPC)
| Number of lamps | 14 |
| Material | FPC (soft and bendable) |
| Dimensions | 97mm x 12mm |
| Line length | 150mm |
| Cascade | No |
What's Included
- 14-LED version: 14PCS lamps colorful RGB light strip x1
- 5-LED version: 5PCS lamps colorful RGB light strip x1; connection line 7.5cm x1; connection line 20cm x1
Applications
- Robot and smart car lighting
- DIY projects and light painting
- Decorative lighting (including use with a silicone case lighting effect)
Manuals
Tutorials and sample codes (Arduino, micro:bit, Raspberry Pi 4B, Raspberry Pi Pico) are provided here: http://www.yahboom.net/study/RGB-bar.
For pre-sales questions or after-sales support, contact https://rcdrone.top/ or email support@rcdrone.top.
Details

Choose between a rigid 5‑LED PCB bar or a flexible 14‑LED FPC strip to add programmable WS2812 RGB lighting to robot builds and DIY projects.


Individually addressable LEDs make it easy to create effects like marquee, running light, and breathing patterns with smooth color transitions.

Pairing the strip with a silicone diffuser can produce a softer, more even glow for decorative lighting.

A compact lighting upgrade for robots and smart cars, adding visible status colors and ambient accents.


Works with popular controllers including Arduino, micro:bit, Raspberry Pi (4B/3B), Raspberry Pi Pico, and STM32 boards.

The 5‑LED bar supports cascading, with dedicated signal input and signal output connectors for chaining multiple bars.


Free sample code and tutorials are available for multiple platforms to help you start quickly.

Key dimensions and version differences are listed to help confirm fit for your enclosure or chassis.
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