Articles liés à Micro:bit IoT In C

Micro:bit IoT In C - Couverture souple

Fairhead, Harry

 
9781871962451: Micro:bit IoT In C
Couverture souple
ISBN 10 : 1871962455 ISBN 13 : 9781871962451
Editeur : I/O Press, 2016

Synopsis

UPDATED AND EXTENDED SECOND EDITION, COVERING BOTH ORIGINAL AND V2 NOW AVAILABLE

The BBC micro:bit is capable of taking on a variety of roles including that of a powerful IoT device. In order to gain full access to its features and to external devices, however, you need to use C which delivers the speed crucial to programs that communicate with the outside world.

Written for the electronics enthusiast, micro:bit IoT In C starts with a first “Hello Blinky” C program with the mbed online compiler, we move to the desktop to using an offline approach using the yotta development environment plus NetBeans to make things even easier. Now we are ready to discover how to control the micro:bit’s I/O lines, exploring the basis of using the GPIO. For speed, however, we need to work directly with the raw hardware and also master memory mapping, pulse width modulation and other more sophisticated bus types.

From here we can start connecting sensors using first the I2C bus, then by implementing a custom protocol for a one-wire bus, and eventually adding eight channels of 12-bit AtoD with the SPI bus, which involves overcoming some subtle difficulties. We then look at serial connections, one of the oldest ways of connecting devices but still very useful. The micro: bit lacks WiFi connectivity but using a low-cost device we enable a connection to the Internet via its serial port which allows it to become a server.

To conclude we look at the micro:bit’s LED display. This may only be 5x5, but it is very versatile, especially when you use pulse width modulation to vary the brightness level, something we demonstrate in a classic game, written of course in C.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

À propos de l'auteur

Harry Fairhead has been working with microprocessors, and electronics in general, for many years and is author of the best selling The 386/486 Personal Computer: A Power User's Guide and Exploring Intel Edison. Harry is Editor of IoT-Programmer.com and a regular contributor to I-Programmer.info, where he covers all aspects of hardware.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
I/O Press
Date d'édition
2016
Langue
anglais
ISBN 10 
1871962455
ISBN 13 
9781871962451
Reliure
Broché
Nombre de pages
194
Coordonnées du fabricant
Manufactured by Amazon on behalf of the author
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