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    For  example,  shaking  the device  can make  a selected  icon  appear  on the
                        LED display.

                        n  Compass: It detects magnetic fields, like the Earth's, allowing it to determine the
                        direction it is facing and measure movement in degrees. This data can be used

                        in a program or sent to another device.

                        n  Touch sensor: The gold Micro:bit logo can be used as a touch-sensitive input,
                        allowing the Micro:bit to respond when it is touched. For example, touch the logo
                        to display or a smiley face on the LED display.

                        n  Light sensor: A light sensor is an input device that measures light levels. It can
                        read the light levels in the environment, useful for projects like a night-light or
                        solar-powered device.

                        n  Temperature sensor:  It is  an input  device  that  measures  temperature.  The

                        Micro:bit  uses its  processor’s  temperature  to  estimate  the surrounding air
                        temperature and displays the current temperature on the LED display.

                        n  LED display:  The LED display  is an output  device  that  emits  light. It has a
                        5×5 matrix of 25 red LEDs on its front, which forms a small display used to show

                        messages, numbers or symbols.
                        n  Radio: The Micro:bit has a built-in radio with Bluetooth that can send and receive

                        wireless signals. It sends messages as output and receives messages as input,
                        making it both an input and output device.

                        n  Edge connector: The Edge Connector has pins along its bottom edge. These pins

                        can be used as output pins to send electrical signals to other devices and allow
                        you to connect external components and accessories to the Micro:bit, expanding
                        its capabilities beyond the built-in features.

                     n   Sound output: It has a built-in speaker that allows it to play sounds and music

                        without  needing  any  external
                        components.                                     SMART       The Micro:bit is used by students
                                                                                    everywhere to learn coding and
                         These input and output devices                 SPARK        problem-solving in a fun way.
                        make  the Micro:bit  a powerful

                        and fun tool for creating interactive projects.

                                                  Is it right to use the micro:bit to track someone’s location,
                                                 even if it's for their safety? Should people be told if they are
                                                           being tracked? Discuss why or why not.

                                                                              Micro:Bit and the World Around Us
                                                                                                                        47

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