5. Christmas Tree Rainbow LED for micro:bit¶
5.1. Introduction¶
The christmas tree rainbow LED, with 6 coding LEDs，can help you to decorate a beautiful chritmas night.
5.2. Features¶
In christmas tree shape, adapt to the christmas scene
With coding rainbow LED for any colour you like.
With crocodile clip lines, no need for a expansion board
5.3. Parameters¶
|Items|Parameters| |:-:|:-:| |Name|Christmas Tree Rainbow LED| |SKU| EF03420| |Input Voltage|DC 3.3~5.0V| |Size|75.93mm X 50.00mm| |Net Weight|6.5g|
5.4. Quick Start¶
Preparation¶
1 x Chritmas Tree Rainbow LED
3 x crocodile clip lines（Please prepare by yourself）
1 x micro:bit（Please prepare by yourself）
Hardware Connect¶
Connect the black crocodile clip line to the GND port of the micro:bit, the other side of the black crocodile clip line to the G port of the christmas tree rainbow LED.
Connect the red crocodile clip line to the 3V port of the micro:bit, the other side of the red crocodile clip line to the V port of the christmas tree rainbow LED.
Connect the yellow crocodile clip line to the 0 port of the micro:bit, the other side of the yellow crocodile clip line to the S port of the christmas tree rainbow LED.
Software¶
Step 1¶
Click on “New Project” and set a new Project.
Click on “Advanced” for more code blocks and click the Extensions at the bottom of the column.
Serch “neopixel” and add neopixel as a codebase.
Step 2¶
Snap “set strip to RainbowLED at pin with leds as” from RainbowLED into the on start. Set pin to P1 with 6 LEDs in RGB pattern.
Step 3¶
Snap the strip rotate block from the RainbowLED under the forever. Set the rotate pixels to 1 and set the LEDs change its colour one by one.
Then, snap a strip show block for colourful light.
Program¶
Program link：https://makecode.microbit.org/_Ukp8C5M2dbr2
You also could directly download program by visiting website as below:
Result¶
The christmas tree rainbow LED glows colourful light to bring beauty to the christmas night.
