All we have to do now is make some way for our microbit to tell us what the signal strength is so that we know how close we are to the hidden microbits. We’re going to use if blocks to turn on the LEDs.
Get an IF block and add it to the forever block.
From logic get a < less than> block < and add it to the block.
We are going to check if the number in signalStrength is less than 52, this will be a low signal so we need to show we are a long way away from the hidden microbit.
So set one side of the less than (<) block to <SignalStrength> and the other side to 52.
We will show this is a low strength signal by just lighting the bottom row of LEDS, like this:
In basic select a < Show LEDs > block and add it to the if block
Click each square on the bottom row to turn them white (on)