™
Halo Board for the BBC micro:bit
www.kitronik.co.uk/5625
This Halo board for the BBC micro:bit incorporates 24
™
colour addressable
LEDs, connected to the BBC micro:bit pin P0. It also breaks out P1 and P2 to a
standard 0.1” footprint.
The board includes an integrated nut and bolt connection for the BBC micro:bit.
The board produces a
regulated supply
that 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 will not illuminate.
Layout and Dimensions:
59 mm
On Off switch
24
ZI
™ LEDs
2x M3 mounting
holes
BBC micro:bit
compatible screw
connections
Additional power
supply solder pad
2.54mm pitch
80mm
80 mm
Connecting a BBC micro:bit:
The board has been designed so that the BBC micro:bit can be bolted to
the back, using the 5 supplied M3x6 countersunk machine screws.
Examples:
Uses for the Halo could include a lamp, clock or a compass. For
more details see:
http://www.kitronik.co.uk/ziphalo
ZIP
™ LED
expansion pads:
Left Pad: DOUT
Middle Pad: +V
Right Pad: GND
Breakout P1 and P2
JST Connector for battery
The Halo board is 11mm thick (including BBC micro:bit)
™
Halo Board for the BBC micro:bit
www.kitronik.co.uk/5625
Electrical Information
Operating Voltage (Vcc)
Number of ZIP LEDs
Number of external channels
Max Current (ZIP LED running full RGB brightness)
3.5V
–
5V
24
3 (1x ZIP LED, 2x IO pin, each IO channel rated +3V at 50mA)
1.2A (50mA per ZIP)
JavaScript Blocks editor code
Kitronik
™ LEDs are compatible with any
WS2812B driver code and can be coded with the
Microsoft MakeCode Editor.
The example blocks (right) will cause the ZIP Halo
to display a rotating rainbow pattern.
Caution:
may become hot if used at high
brightness for prolonged periods.
TM
LEDs
模拟电子
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