First Step

Open TinkerCode app in your browser

Click here to go to TinkerCode app!

Second Step

Drop setup block and adruino loop from Base Controller menu

Third Step

Drop DigitalWrite block from Adruino menu

Fourth Step

Choose selected LED pin number and set Stat HIGH = ON

Fifth Step

Drop delay block from Loops menu to set a timer for LED to turn on 

Sixth Step

Drop DigitalWrite and delay block again and set Stat LOW = OFF

Seventh Step

Plug in Maker Kit USB to your laptop or computer

Eighth Step

Set Board Type and Port in setting according your Maker Kit port. Next, click Update button

Ninth Step

Lastly, click upload to upload your program to Maker Kit device

Awesome pop up says your program is all set. See the result!

The result

Green LED where pin number 5 is light up!

How about turn on all LED at the same time?

You can just duplicate DigitalWrite block and set LED pin number. Next, upload your program

The result

All LED is light up!