Instructions

PROGRAMMABLE X-MAS TREE

Warnings

• Do not place or use the Micro:bit and Arduino at the same time.

• After you soldered the Arduino to the PCB, the Micro:bit cannot be used anymore.

• Prior to the assembly, read the manual thoroughly.

• Observe the correct polarity of the batteries.

• Keep the batteries dry. When the X-mas tree gets wet, remove the batteries and let the X-mas tree dry for some time.

• Remove the batteries when you are not using the machine for a longer period.

Normal use

This device has been designed as a SchoolLab kit for everybody who is interested in technology and programming. For this kit, the objective

is the development of the programming skills for the Micro:bit and Arduino software.

The X-mas tree shows the result of the programming job directly. The software can also be used to control regular LED strips.

This product is not a toy and not suited for children under 7 years of age. Any use other than that described above can lead to damage to

the product and may involve additional risks such as short circuits, re, electrical shock, etc.

Manufacturer and dealer are not responsible for the consequences of improper use, assembly mistakes and/or operation of this product as

a result of ignorance of this manual. If necessary, the contents of this manual can be changed any time without prior notice. New manual

versions will then be available on: http://www.arexx.com

Important

Read the precautions before you start.

This X-mas tree is programmable with Micro:bit or Arduino Nano. The X-mas has leaves with 12 pro-

grammable WS-2812 LEDS. These LEDS are addressable from 1 to 12 and connected with Pin 2 of the

Micro:bit or the Arduino Nano Pin D9 (PB1).

The X-mas tree is powered with 3 pcs. 1,5 Volt AA batteries. It is important that the Micro:bit and

Arduino Nano are not connected to the X-mas tree at the same time, it operates or with the Micro:bit

or with the Arduino Nano! The LEDS are programmed as WS-2812 or als “Neopixel LEDSTRIP”. With

the Micro:bit you must include the Neopixel extension before programming.

For schools and hobbyists, there are books and worksheets available with exercises and examples.

J1 = Micro:bit connector

ARDUINO NANO

On/Offs Switch

12 pcs. WS2812 LEDS

Battery holder

XMJ-APAS