Introducing the micro:bit machine learning tool

the microbit machine learning tool lets

you train test and improve a machine

learning model that can recognize

different actions or

movements here's a quick tour of how it

works you'll need two microbits you'll

hold or wear the first

microbit follow the instructions on

screen for setting up microbit

one then unplug it and attach a battery

pack if you have a wrist strap you can

attach microbit one to your

arm the second microbit stays connected

to your computer with a USB cable follow

the instructions on screen for setting

up microbit

2 at the bottom of the screen you'll see

live movement data from microbit 1's

accelerometer

sensor each colored line represents a

different direction or Dimension you're

moving the microbit

in Step One add some

data decide which actions you want the

microbit machine learning tool to

recognize clapping and waving are good

ones to start

with name your first action then start

moving click the red button to collect

your first sample of

data collect at least three samples of

your first action

and do the same for at least one other

action step two train the model this

means that the machine learning tool

makes a set of rules to estimate which

action you're doing when moving microbit

one step three test the model try making

each of your actions the screen shows

which action the model estimates that

you're making the percentage number is

how confident or sure the model

is now try it yourself and see what

different movements you can train the

microbit machine learning tool to

recognize