Here’s a project that will allow you and your friends to use multiple micro:bits to create a synchronized group of virtual fireflies! – via makecode.microbit.org
How do Fireflies synchronise?
Go to http://ncase.me/fireflies/ and read about the fireflies synchronization phenomenon.
Code
We want to create virtual fireflies using multiple micro:bit (each micro:bit acts as a firefly). Let’s review some of the key points of the article:
“Each firefly has its own individual internal clock”
A clock in this case is like a counter, so we will start by adding a clock variable to our program.
“and every time the clock “strikes twelve”, it flashes.”
We can use a forever loop to repeat code that increments the clock. When the clock reaches “noon” (let’s pick 8), we turn on the screen briefly (by using the game score animation)
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