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Flashing heart Smiley buttons Love meter Rock paper scissors Magic button trick Coin Flipper Hack your headphones Banana keyboard Guitar Duct tape wallet Watch Soil Moisture Plant Watering Reaction Time States of Matter Hot Or Cold Voting Machine Infection Fireflies Rock Paper Scissors Teams Inchworm Milk Carton Robot Milk monster RC Car Timing gates Compass Telegraph Railway Crossing Karel
Examples
Blinky Name tag Rando Plot acceleration Plot light level Plot analog pin Servo calibrator Game of Life Egg and Spoon Race Stop watch Radio dashboard
Courses
About Introduction References Acknowledgements
Introduction Unplugged Walkthrough Project Standards
Overview Unplugged Activity Project Standards
Overview Unplugged Activity Project Standards
Overview Unplugged Activity Project Standards
Overview Unplugged Activity Project Standards
Review Activity Project Standards
Overview Unplugged Activity Project Standards
Overview Unplugged Activity Project Standards
Overview Unplugged Activity Project Standards
Overview Unplugged Activity Project Standards
Overview Unplugged Activity Project Standards
Review Project Examples Standards
Reference
show number show icon show leds show string clear screen forever pause show arrow show animation
on button pressed on gesture on pin pressed button is pressed compass heading pin is pressed temperature acceleration light level rotation magnetic force running time set accelerometer range
play tone ring tone rest beat tempo change tempo by set tempo
plot unplot point toggle brightness set brightness stop animation plot bar graph enable
send number send value send string on data packet received set group set transmit power set transmit serial number write received packet to serial
create sprite delete move turn in on edge bounce get set change is touching is touching edge add score score set score start countdown game over pause resume
create image create big image show image scroll image arrow image icon image arrow number
digital read pin digital write pin analog read pin analog write pin analog set period map on pulsed pulse duration pulse in servo write pin servo set pulse i2c read number i2c write number set pull analog pitch analog set pitch pin spi write spi Pins spi format spi frequency
write line write number write value write string read until read line read string on data received redirect write buffer read buffer
in background reset wait micros on event raise event event timestamp event value
Pairing on bluetooth connected on bluetooth disconnected start accelerometer service start button service start io pin service start led service start magnetometer service start temperature service start uart service uart read until uart write string uart write number uart write value advertise url stop advertising advertise uid advertise-uid-buffer
tell camera to tell remote control to raise alert to on notified on gamepad button signal strength on signal strength changed
Packages
NeoPixel File System Sonar Bluetooth Temperature Sensor MAX6675 Bluetooth MAX6675 MIDI Bluetooth MIDI Code Dojo Olney UCL Junk Robot SRS BitBot SRS BitBot BlockyTalkyBLE
Blocks
On Start
repeat for while
if Boolean
assign change var var
Math JavaScript blocks Custom blocks
JavaScript
Calling Sequencing Variables Operators Statements Functions Types Classes Interfaces Generics
Types
Number String Boolean Array Function
Hardware
Data logging Error codes Foil circuits MES events Pins Reactive Screen Serial Servo Simulator Usb Flashing via HID (CMSIS-DAP)
Published by Microsoft
    Documentation
Support
Projects
Flashing heart Smiley buttons Love meter Rock paper scissors Magic button trick Coin Flipper Hack your headphones Banana keyboard Guitar Duct tape wallet Watch Soil Moisture Plant Watering Reaction Time States of Matter Hot Or Cold Voting Machine Infection Fireflies Rock Paper Scissors Teams Inchworm Milk Carton Robot Milk monster RC Car Timing gates Compass Telegraph Railway Crossing Karel
Examples
Blinky Name tag Rando Plot acceleration Plot light level Plot analog pin Servo calibrator Game of Life Egg and Spoon Race Stop watch Radio dashboard
Courses
About Introduction References Acknowledgements
Introduction Unplugged Walkthrough Project Standards
Overview Unplugged Activity Project Standards
Overview Unplugged Activity Project Standards
Overview Unplugged Activity Project Standards
Overview Unplugged Activity Project Standards
Review Activity Project Standards
Overview Unplugged Activity Project Standards
Overview Unplugged Activity Project Standards
Overview Unplugged Activity Project Standards
Overview Unplugged Activity Project Standards
Overview Unplugged Activity Project Standards
Review Project Examples Standards
Reference
show number show icon show leds show string clear screen forever pause show arrow show animation
on button pressed on gesture on pin pressed button is pressed compass heading pin is pressed temperature acceleration light level rotation magnetic force running time set accelerometer range
play tone ring tone rest beat tempo change tempo by set tempo
plot unplot point toggle brightness set brightness stop animation plot bar graph enable
send number send value send string on data packet received set group set transmit power set transmit serial number write received packet to serial
create sprite delete move turn in on edge bounce get set change is touching is touching edge add score score set score start countdown game over pause resume
create image create big image show image scroll image arrow image icon image arrow number
digital read pin digital write pin analog read pin analog write pin analog set period map on pulsed pulse duration pulse in servo write pin servo set pulse i2c read number i2c write number set pull analog pitch analog set pitch pin spi write spi Pins spi format spi frequency
write line write number write value write string read until read line read string on data received redirect write buffer read buffer
in background reset wait micros on event raise event event timestamp event value
Pairing on bluetooth connected on bluetooth disconnected start accelerometer service start button service start io pin service start led service start magnetometer service start temperature service start uart service uart read until uart write string uart write number uart write value advertise url stop advertising advertise uid advertise-uid-buffer
tell camera to tell remote control to raise alert to on notified on gamepad button signal strength on signal strength changed
Packages
NeoPixel File System Sonar Bluetooth Temperature Sensor MAX6675 Bluetooth MAX6675 MIDI Bluetooth MIDI Code Dojo Olney UCL Junk Robot SRS BitBot SRS BitBot BlockyTalkyBLE
Blocks
On Start
repeat for while
if Boolean
assign change var var
Math JavaScript blocks Custom blocks
JavaScript
Calling Sequencing Variables Operators Statements Functions Types Classes Interfaces Generics
Types
Number String Boolean Array Function
Hardware
Data logging Error codes Foil circuits MES events Pins Reactive Screen Serial Servo Simulator Usb Flashing via HID (CMSIS-DAP)
Published by Microsoft

Change Tempo By

Makes the tempo (speed of a piece of music) faster or slower by the amount you say.

Simulator

This function only works on the micro:bit and in some browsers.

music.changeTempoBy(20)

Parameters

  • bpm is a number that says how much to change the bpm (beats per minute, or number of beats in a minute of the music that the micro:bit is playing).

Examples

This program makes the music faster by 12 bpm.

music.changeTempoBy(12)

This program makes the music slower by 12 bpm.

music.changeTempoBy(-12)

See also

play tone, ring tone