ET-D07
12-LED RGB Ring
Ring of 12 addressable RGB LEDs, 38 mm
AED 23.00
Out of stockOverview
Ring of 12 addressable RGB LEDs, 38 mm
The ET-D07 is built around the 12 × WS2812B-2020 (2×2mm) addressable RGB, 24-bit colour, 800kHz. It runs from 5V; up to 0.14A at full white (≈12mA per LED channel × 3).
Designed in Dubai by ElectroTrical — the full schematic, BOM and design notes are published below.
Good for
- Clock faces
- Compass and direction indicators
- Lamp and lens lighting
Key features
What makes it different
LEDs
12 × WS2812B-2020 (2×2mm) addressable RGB, 24-bit colour, 800kHz
Data input
74AHCT1G125 buffer: 3.3V microcontrollers drive it reliably at 5V
Supply
5V; up to 0.14A at full white (≈12mA per LED channel × 3)
Layout
12 pixels on a Ø30mm circle — clocks, compasses, indicators
Open documentation
Schematic, BOM and layout notes published for every board.
Breadboard friendly
Standard 2.54 mm pitch and M2.5 mounting holes.
Specifications
Technical specifications
| LEDs | 12 × WS2812B-2020 (2×2mm) addressable RGB, 24-bit colour, 800kHz |
|---|---|
| Data input | 74AHCT1G125 buffer: 3.3V microcontrollers drive it reliably at 5V |
| Supply | 5V; up to 0.14A at full white (≈12mA per LED channel × 3) |
| Layout | 12 pixels on a Ø30mm circle — clocks, compasses, indicators |
| Size | 38.1 × 38.1 mm |
|---|---|
| Mounting | 4 × M2.5 holes, 2.54 mm from each corner |
| Connectors | 4-pin 2.54 mm header |
| Main IC | 74AHCT1G125GW,125 (LCSC C12495) |
| Revision | Rev A |
| Libraries | Adafruit NeoPixel, FastLED, CircuitPython neopixel |
|---|
Performance
Power
Pinout
Pin map and connections
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | 5V | Power | 4.5–5.3V |
| 2 | GND | Ground | Ground |
| 3 | DIN | SPI | Data in, 3.3V or 5V logic |
| 4 | DOUT | SPI | Data out to the next board |
Mechanical
Dimensions and what's in the box
In the box
- 1 × ET-D07 12-LED RGB Ring (assembled)
- 1 × 4-pin 2.54 mm male header, unsoldered
Getting started
- Wire the header: 5V, GND, DIN, DOUT
- Libraries: Adafruit NeoPixel, FastLED, CircuitPython neopixel
Compare
Which RGB LED board?
| 12-LED RGB Ring (this board)This board | ET-D05 8-LED RGB Stick | ET-D06 4×4 RGB LED Grid | ET-D08 8×8 RGB LED Matrix | |
|---|---|---|---|---|
| What it does | Ring of 12 addressable RGB LEDs, 38 mm | Eight addressable RGB LEDs with a 3.3 V-safe input | Sixteen addressable RGB LEDs on a 1-inch square | 64 addressable RGB LEDs with power terminal |
| Interface | — | — | — | — |
| Best for | Clock faces | Status bars and level meters | Tiny pixel art | Scrolling text and icons |
| Price | 23 AED | 19 AED | 19 AED | 109 AED |
Downloads
Documents and design files
Need a custom version of this board?
Different connector, size or sensor? We design and build custom variants.