The BBC micro:bit is the spiritual successor of the BBC Micro of the 1980s, which itself introduced a generation of children to computing. The BBC micro:bit carries on this 30 year tradition and does it 18 times faster and is 70 times smaller than its predecessor. The main component used in this sensor is A3144E. This hall magnetic sensor can be used to detect a magnetic field, outputting Digital signal. It can sense the magnetic materials within a detection range up to 3cm. But if use the micro bit main board to control the servo angle, we only need to set the control angle in the development environment. The corresponding pulse will be automatically set in the development environment to control the servo rotation. Please Note: BBC micro:bit is NOT included. You can buy the Kitronik Inventor's Kit with the BBC micro:bit already included here.

This analog gas sensor is used to detect combustible gases in the air, such as liquefied Gas, propane, hydrogen Gas, etc. Done wiring and powered up, send the above code to MICROBIT. You should see the brightness data on the LED matrix of micro:bit. Or you can open the serial monitor of Arduino IDE to get the data. Shown as below.Done wiring and powered up, send the code to MICROBIT. When flame sensor detects the fire nearby, the buzzer module will sound immediately. If no fire detected, the buzzer not beeps. An LED (or light-emitting diode) is an output device that gives off light. Your BBC micro:bit V2.2 has a display of 25 LEDs for you to program Done wiring and powered up, send the code to MICROBIT, you should finally see an LED on the module gradually become brighter, then gradually dim, circularly just like the LED is breathing.

when connect external sensor module to the shield for working,the operating current of AMS1117-3.3V and NCP1117ST50T3G chip is too large, so it is easy to get hot. Pay special attention to avoid touching the two chips and causing burns. The Arduino folder contains both the Arduino program itself and the drivers that allow the Arduino to be connected to your computer by a USB cable. Before we launch the Arduino software, you are going to install the USB drivers.The BBC micro:bit is a powerful handheld, fully programmable, computer designed by the BBC and a number of partners. It was designed to encourage children to get actively involved in technical activities, like coding and electronics. It features a 5x5 LED Matrix, two integrated push buttons, a compass, Accelerometer, and Bluetooth. These features make it a great introduction to the world of programmable components and the wider internet of things. If no obstacle detected, the infrared ray emitted is weakened by the distance it travels and eventually disappears, so receiving tube cannot receive it and signal end of sensor will output High level. Note: we adopt V1.5 micro:bit in the whole tutorial, but our tutorial is also compatible with the latest version micro:bit. So in this project, you will learn how to use a flame sensor and an active buzzer module to simulate the fire alarm system. Insert the micro:bit into keyestudio micro:bit sensor V2 shield.Then separately connect both single relay module and white LED module to keyestudio micro:bit sensor shield. Shown as below diagram.

After that, select the option to browseand navigate to the “drivers” folder of Arduino installation. Insert the micro:bit into keyestudio micro:bit sensor V2 shield. Then connect the micro servo to the shield. Connect the signal line to P3 of micro:bit, power line to V1 header, ground line to ground header. Now,we have installed well the Arduino software. In the following projects, you might use the software's monitor window to display the data. In this project, you will learn how to use our hall magnetic sensor to control 5*5 LED of micro:bit display different images.So in this lesson, you will learn how to use a steam sensor and micro:bit to detect the vapor content in the air. Show the analog value on the micro:bit LED matrix or on the serial monitor.

You should see the value is shown on the LED matrix of micro:bit. Or you can open the serial monitor of Arduino IDE to get the value. Shown below. Its working principle is to use the different reflectivity of infrared light to the color, then convert the strength of the reflected signal into a current signal. Done wiring and powered up, send the code to MICROBIT. When press the button on the module, you should see the LED matrix of micro:bit show the icon like a heart. Otherwise, it will show the icon like this.Done wiring and powered up, send the code to MICROBIT. When sensor detects the movement of someone nearby, 25 LED matrix of micro:bit will show the icon like a heart. Or else, it will show the icon like this. Pro napájení projektu s microbitem můžete použít buď počítač nebo držák baterií. V prvním případě propojíte microbit s počítačem dodaným USB kabelem a ve druhém případě připojíte konektor držáku baterií do desky microbit. Oba druhy napájení je možné kombinovat například při přehrávání programu. Insert the micro:bit into keyestudio micro:bit sensor V2 shield. Then connect the analog sound module to keyestudio micro:bit sensor shield. Shown as below diagram. In the evening, when outside brightness becomes lower, the street light is automatically controlled to be turned on. When it is bright during the day, the street light is automatically turned off. In this experiment, the signal end of keyestudio Analog Rotation Sensor is connected to micro:bit P0. By reading the analog value of P0, rotate the potentiometer, you should see the analog value is changed on the micro:bit LED matrix.