The document provides an introduction to the BBC micro:bit, an embedded system designed for educational purposes, detailing its features like programmable LEDs, sensors, and connectivity options. It outlines comparisons with Arduino, hardware components, and offers coding activities for users to engage with the device. Additionally, it includes resources for further exploration and contact information for the speaker.

1. Introduction
to the
MICRO:BIT
(How to use with IOT Devices)
1
Kasun Rukmaldeniya

2. Speaker
Kasun Gihan Rukmaldeniya
District Leader - Micro:Bit SLUG
Project Manager - STEMUp Foundation
(UG BICT in SEUSL, UG BScSE(Hons) in NSBM, DipIT in Person, CertICT in NAITA)
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3. What is Micro:Bit ?
BBC Micro:Bit is an ARM-based embedded
system designed by the BBC
for make learning and teaching
Easy and Fun!
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4. What are the difference between
MICRO:BIT & ARDUINO?
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5. HOW
MICRO:BIT
LOOKS
LIKE ?
F R ONT S I DE
B A C K S I DE 5Kasun Rukmaldeniya

6. 6Kasun Rukmaldeniya

7. WHAT’S INSIDE ?
MICRO:BIT
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8. WHAT’S INSIDE ?
LED stands for Light Emitting Diode.
The micro:bit has 25 individually-programmable
LEDs, allowing you to display
• Text
• Numbers and
• Images.
LEDs
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9. WHAT’S INSIDE ?
There are two buttons on the front of the
micro:bit (labelled A and B).
You can detect when these buttons are pressed,
allowing you to trigger code on the device.
BUTTONS
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10. WHAT’S INSIDE ?
There are 25 external connectors on the edge
connector of the micro:bit, which we refer to as
'pins’.
Program motors, LEDs, or other electrical
components with the pins, or connect
extra sensors to control your code!
PINS
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11. WHAT’S INSIDE ?
By reversing the LEDs of the screen to become an
input, the LED screen works as a basic light
sensor, allowing you to detect ambient light.
LIGHT SENSOR
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12. WHAT’S INSIDE ?
This sensor allows the micro:bit to detect the
current ambient temperature, in degrees Celsius.
This uses processor inbuilt temperature sensor.
TEMPERATURE
SENSOR
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13. WHAT’S INSIDE ?
An accelerometer measures the acceleration of
your micro:bit; this component senses moments
of the micro:bit. It can also detect other actions,
e.g. shake, tilt, and free-fall.
ACCELEROMETER
SENSOR
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Z
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14. WHAT’S INSIDE ?
The compass detects the earth's magnetic field,
allowing you to detect which direction the
micro:bit is facing. The compass has to be
calibrated before it can be used. 'Calibrating' the
compass ensures the compass results are
accurate.
COMPASS SENSOR
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Z
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15. WHAT’S INSIDE ?
The radio feature allows you to communicate
wirelessly between micro:bits. Use the radio to
send messages to other micro:bits, build
multiplayer games, and much more!
RADIO
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16. WHAT’S INSIDE ?
A BLE (Bluetooth Low Energy) antenna allows the
micro:bit to send and receive Bluetooth signals.
This allows the micro:bit to wirelessly
communicate with PCs, Phones, and Tablets, so
you can control your phone from your micro:bit
and send code wirelessly to your device from
your phone!
BLUETOOTH
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17. WHAT’S INSIDE ?
Nordic nRF51822 ARM M0 32bit microcontroller
driven at 16MHz clock speed to process and
upload code.
PROCESSOR
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18. WHAT’S INSIDE ?
The USB interface allows you to connect the
micro:bit to your computer via a micro-USB cable,
which will power the device and allow you to
download scripts onto the device and as a serial
port.
USB INTERFACE
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19. WHAT’S INSIDE ?
This button is used to reset the running process
in micro:bit. The code will run from the beginning
when we press this button.
RESET BUTTON
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20. LET’S DO SOME CODING
WITH MICRO:BIT
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21. Develop your creative ideas.
THREE STEPS TO CODE
www.here.com
CONNECT BLOCKS
blocks & write your code
CONNECT MICRO:BIT
Connect micro:bit to your PC
DOWNLOAD & UPLOAD
Download the code & upload it to the device
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22. Go to this link…
makecode.microbit.org
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23. start
How to compile project to Micro:Bit?
Basic Forever
Basic Show string
0 1. C ODE 0 2 . C O NNE C T 0 3. D O WNLOAD T H E
. H E X F I LE & U P LOAD
Coding… 23Kasun Rukmaldeniya

24. ACTIVITY
• Make a smiling face
• Then run it on the emulator.
• What other shapes, pictures can you
get it to display?
• Now try running your code on the
device
Smiley Face
01st
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25. ACTIVITY
• Make yourself a scrolling name badge!
• How about using a different
commands.
• On Shake
• On ButtonA Pressed
• On Button B Pressed
• On ButtonA+B Pressed
Scrolling Name Badge
02n d
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26. ACTIVITY
• Can you make the dice pick from
numbers?
• Can you run it based on a different
input command?
• There should only 1 - 6 Numbers
Dice Emulator
03rd
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27. ACTIVITY
• Make a thermometer by adding a
variable
• Variable rename as “temp”
Make a Thermometer
04th
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28. ACTIVITY
• Make game called ‘Rock, Paper,
Scissors’ using if
• (output will only happen if certain
condition is met otherwise something
else will happen instead).
Rock, Paper, Scissors game
05th
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29. ACTIVITY
• Can you make your own Compass
• Using Micro:Bit’s motion detector
Making a Compass
06th
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30. ACTIVITY
• Once click on Button A of one Micro:Bit,
• first (send) Micr:bit should shows “S“
• second (received) Micr:bit should shows “R“
• When pressed on other Micro:Bit’s Button A,
• second (send) Micr:bit should shows “S“
• first (received) Micr:bit should shows “R“
Use Radio Connection
07th
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31. ACTIVITY
07th
Use Radio Connection
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32. LINKSYOU SHOULD CHECK
ABOUT MICRO:BIT
• Micro:Bit web site : https://www.microbit.co.uk/create-code
• Microbit.org Sinhala : https://microbit.org/si
• Micro:Bit Sri Lanka User Group : http://microbitslug.org
• To request a program like today : http://microbitslug.org/requests
• To register as a SLUG volunteer : http://microbitslug.org/volunteers
• STEMUp Foundation : http://stemup.foundation
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33. ThankYou &Any Questions?
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34. Any Questions…
Want to contact me…?
Kasun Gihan Rukmaldeniya
District Leader - Micro:Bit SLUG
Project Manager - STEMUp Foundation
(UG BICT in SEUSL, UG BScSE(Hons) in NSBM, DipIT in Person, CertICT in NAITA)
Whatsapp : +94 (77) 32 200 10
Email : rukaatricks.com@gmail.com
Facebook : Kasun Gihan Rukmaldeniya
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