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BBC Micro:bit in Practice

BBC Micro:bit in Practice

By : Ashwin Pajankar, Abhishek Sharma, Sandeep Saini
5 (1)
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BBC Micro:bit in Practice

BBC Micro:bit in Practice

5 (1)
By: Ashwin Pajankar, Abhishek Sharma, Sandeep Saini

Overview of this book

This book is a one-stop guide for learning BBC Micro:bit with MicroPython, exploring many hardware components and programming techniques to provide detailed insights into developing practical applications with the Micro:bit. It will also show you how hardware components can be manipulated using a combination of Micro:bit and MicroPython for developing practical projects. BBC Micro:bit in Practice will help you gain a holistic understanding of the BBC Micro:bit platform and MicroPython programming, guiding you through mini projects aimed at developing practical knowledge of circuit design and writing programs. You’ll learn how to write programs for working with built-in LEDs and buttons, interfacing external LEDs, buttons, motors, buzzers, and much more. You’ll also work with built-in radio, speakers, accelerometer, and a compass. You’ll dive into concepts related to the Micro:bit filesystem, interfacing external displays, and working with libraries in detail before exploring sewable circuits and wearable technology. After reading this Micro:bit book, you’ll understand how to apply principles in electronics and MicroPython to create interesting real-life projects from scratch.
Table of Contents (22 chapters)
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1
Part 1: Getting Started with the BBC Micro:bit
6
Part 2: Programming Hardware with MicroPython
10
Part 3: Filesystems and Programming Analog I/O
13
Part 4: Advanced Hardware Interfacing and Applications

Potentiometers

The potentiometer (also known as pot) is a commonly used analog device. It is a three-pin device that offers variable resistance with the help of the middle pin. To connect it with Micro:bit, as depicted in Figure 9.2, we need to join the middle pin of a potentiometer to the analog pin and side pins to the power and ground:

Figure 9.2 – Connecting a potentiometer to Micro:bit using P0

Once the connections are made, as shown in Figure 9.2, then the Micro:bit needs to be programmed, and the values from the potentiometer can be read for further use. As depicted in Figure 9.2, the potentiometer has three pins: one pin is connected to the ground and another is associated with the supply voltage; in the case of Micro:bit, it supplies 3 V of power. The middle pin is the point of consideration in the circuit connection, and it could be connected to any analog pin, such as pins 0, 2, 3, 4, and 10. The changes will be made in the program based on...

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