bd1536132d
cleanup "snippets" compilation state
1.1 KiB
1.1 KiB
Set Transmit Power
Make the radio
signal of the micro:bit stronger or weaker.
It can be as weak as 0
and as strong as 7
.
The scientific name for the strength of the radio
signal is
dBm, or decibel-milliwatts. A signal strength of 0
can be measured as -30 dBm, and a strength of 7
can be
measured as +4 dBm.
radio.setTransmitPower(7);
Range
If your micro:bit is sending with a strength of 7
, and you are in
an open area without many other computers around, the micro:bit signal
can reach as far as 70 meters (about 230 feet).
Parameters
power
is a number between0
and7
that means how strong the signal is.
Simulator
This function only works on the micro:bit, not in browsers.
Example
This program makes the radio
send at full strength.
radio.setTransmitPower(7)
See also
receive number, send number, on data received
radio