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Blue LED(EF05011)

Introduction​

Blue LED is usually used as the indicator.

ELECFREAKS PlanetX LED-Blue

Characteristic​

Designed in RJ11 connections, easy to plug.

Specification​

ItemParameter
SKUEF05011
ConnectionRJ11
Type of ConnectionAnalog input
Working Voltage3.3V
Size55.8 x 23.8 mm

Outlook​

Quick to Start​

Materials Required and Diagram​

Connect the Blue LED to J1 port and the potentiaometer to J2 port in the Nezha expansion board as the picture shows.

MakeCode Programming​

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.

Step 2​

Code as below:​

Link: https://makecode.microbit.org/_eTHcUiPhjLpz

You may also download it directly below:

Result​

The brightness is adjusted by the potentiometer.

Python Programming​

Step 1​

Download the package and unzip it: PlanetX_MicroPython

Go to Python editor

We need to add enum.py and led.py for programming. Click "Load/Save" and then click "Show Files (1)" to see more choices, click "Add file" to add enum.py and led.py from the unzipped package of PlanetX_MicroPython.

Step 2​

Reference​

from microbit import *
from enum import *
from led import *
led = LED(J1)

while True:
    led.set_led(1,100)
    sleep(1000)
    led.set_led(1,50)
    sleep(1000)
    led.set_led(0,50)
    sleep(1000)

Result​

LED lights on in 100% brightness for one second and 50% brightness for another sencond and lights off for one second after powering on and it continues working in this way.

Relevant File​

Technique File​