Really cool idea from blogmywiki‘s Giles Booth, scrolling text across multiple micro:bits using one :bit as the transmitter and 4 :bits as radio receivers of the message:
I wanted to make a scrolling display for my desk on parents’ evening, and thought I might use a micro:bit. Then I thought 5 micro:bits might be even better. But how to get them scrolling one message across? I didn’t want to use a computer to control them, I wanted them to be standalone, self-contained. And the radio abilities of the micro:bit mean that no wires should be needed.
So here’s a very simple bit of Python that will turn any number of micro:bits into a rough and ready big scrolling display. There are two different programs, one for the transmitting micro:bit which goes on the right-hand end. Code your message into the Python script and flash it using the Mu editor. When all your other micro:bits are ready, press button A to begin.
Read more here. Also Giles points out a contemporaneous example from the micro:bit Educational Foundation’s Philip Meitiner:
— Philip Meitiner (@pragmaticPhil) November 5, 2017
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