Datasheet

ManualsBrandsKitronik ManualsMicrocontroller AccessoriesZIP Color LED Halo HD for micro:bit

Layout and Dimensions:

BBC micro:bit

Edge Connector

On Off switch

Connecting a BBC micro:bit:

The board has been designed so that the

BBC micro:bit can be inserted into the

edge connector requiring no additional

tools.

Examples: There is example code within

this datasheet to get started with the

board. Other uses for the Halo HD could

include a lamp, clock or a compass. For

more details see:

http://www.kitronik.co.uk/halohd

Breakout P1

87mm Diameter

Introduction: This Halo HD board for the BBC micro:bit incorporates 60 full colour,

addressable ™ LEDs, connected to the BBC micro:bit. It also breaks out P1 and P2 to

a standard 0.1” footprint. Included on the board is a real time clock (RTC) controlled by

I2C lines from the BBC micro:bit, a MEMS microphone for detection of sound, and a

piezo buzzer provides the ability to play sound. For details of pins connections, see the

BBC micro:bit pin connection information table on the following page.

The board makes use of an edge connector for easy connection of the BBC micro:bit.

The board has a 3xAA battery holder mounted on the rear, with a power switch on the

front of the board. A regulated supply is produced on the board which is fed into the 3V

and GND connections to power the connected BBC micro:bit, removing the need to

power the BBC micro:bit separately. To protect the BBC micro:bit if power is supplied

through it, the ™ Halo HD will not illuminate.

60 ZI ™ LEDs

MEMS Microphone

The Halo HD board is 30mm thick (including BBC micro:bit and battery cage)

Pads for JST Connector

(user addition)

2x M3

mounting

holes

68.4 mm

™Halo HD Board for the BBC micro:bit

www.kitronik.co.uk/5672

Breakout P2

Buzzer

Real

Time

Clock

3xAA Battery cage on the rear side of the PCB

Summary of content (4 pages)

PAGE 1
™Halo HD Board for the BBC micro:bit www.kitronik.co.uk/5672 Introduction: This Halo HD board for the BBC micro:bit incorporates 60 full colour, addressable ™ LEDs, connected to the BBC micro:bit. It also breaks out P1 and P2 to a standard 0.1” footprint. Included on the board is a real time clock (RTC) controlled by I2C lines from the BBC micro:bit, a MEMS microphone for detection of sound, and a piezo buzzer provides the ability to play sound.
PAGE 2
™Halo HD Board for the BBC micro:bit www.kitronik.co.uk/5672 Electrical Information Operating Voltage (Vcc) 3.5V – 5V Number of ZIP LEDs 60 Number of external channels 3 (1x ZIP LED, 2x IO pin, each IO channel rated +3V at 50mA) Max Current (ZIP LED running full RGB brightness) 0.
PAGE 3
™Halo HD Board for the BBC micro:bit www.kitronik.co.uk/5672 MakeCode Blocks Editor Code Example 1 Kitronik have created custom blocks for the Halo HD for use with MakeCode. To add these blocks, first go to makecode.microbit.org and start a new project. Under the “Advanced” section click on “Extensions”. In the next window search for “Halo HD”. Once the icon appears, click on the icon to import it into MakeCode.
PAGE 4
™Halo HD Board for the BBC micro:bit www.kitronik.co.uk/5672 MicroPython Editor Code The example will cause the HaloHD to display a rotating rainbow pattern. from microbit import pin8 import neopixel Note: The neopixel and microbit pin8 imports are required for this program. # Declare constants LEDS_ON_HALO = 60 zip_leds = neopixel.