Rainbow LED Ring(EF05015)
Contents
16. Rainbow LED Ring(EF05015)#
16.1. Introduction#
Rainbow LED Ring is based on WS2812B bead that can show the RGB.
16.2. Products Link#
16.3. Characteristic#
Designed in RJ11 connections, easy to plug.
16.4. Specification#
| Item | Parameter |
|---|---|
| SKU | EF05015 |
| Connection | RJ11 |
| Type of Connection | Digital input |
| Working Voltage | 3.3V |
| Core IC | WS2812 3535 Encapsulation |
| Number of Pixels | 8 |
16.5. Outlook#
16.6. Quick to Start#
16.6.1. Materials Required and Diagram#
Connect the Rainbow LED ring to J1 port in the Nezha expansion board as the picture shows.
16.7. MakeCode Programming#
16.7.1. Step 1#
Click “Advanced” in the MakeCode drawer to see more choices.
We need to add a package for programming, . Click “Extensions” in the bottom of the drawer and search with “PlanetX” in the dialogue box to download it.
Note: If you met a tip indicating that the codebase will be deleted due to incompatibility, you may continue as the tips say or build a new project in the menu.
16.7.2. Step 2#
16.7.3. Code as below:#
16.7.4. Link#
Link: https://makecode.microbit.org/_AU7FyLCLFTMY
You may also download it directly below:
16.7.5. Result#
Rainbow LED ring lights on.
16.8. Python Programming#
16.8.1. Step 1#
Download the package and unzip it: PlanetX_MicroPython
Go to Python editor
16.8.2. Step 2#
16.8.3. Reference#
from microbit import *
import neopixel
from enum import *
from random import randint
np = neopixel.NeoPixel(J1, 8)
while True:
for pixel_id in range(0, len(np)):
red = randint(0, 60)
green = randint(0, 60)
blue = randint(0, 60)
np[pixel_id] = (red, green, blue)
np.show()
sleep(100)
16.8.4. Result#
Rainbow LED ring lights on after powering on.