1.0 KiB
1.0 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
poweris a number between0and7that 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)