Internet of Things with 8051 and ESP8266
eBook - ePub

Internet of Things with 8051 and ESP8266

  1. 178 pages
  2. English
  3. ePUB (mobile friendly)
  4. Available on iOS & Android
eBook - ePub

Internet of Things with 8051 and ESP8266

About this book

Internet of Things with 8051 and ESP8266 provides a platform to get started with the Internet of Things (IoT) with 8051. This book describes programming basics and how devices interface within designed systems. It presents a unique combination of 8051 with ESP8266 and I/O devices for IoT applications supported by case studies to provide the solutions to real-time problems. The programs and circuits have been tested on real hardware and explore different areas in IoT applications. Divided into four sections, it explains the customized boards for IoT applications followed by the means by which 8051 and ESP8266 interface with I/O devices. It spans levels from basic to advanced interfacing with special devices, server design, and data logging with different platforms.

Features:

  • Covers how I/O devices interface with 8051 and ESP8266

  • Explains the basic concepts of interfacing complexity using applications with examples

  • Provides hands-on practice exercises with 8051 and ESP8266 for IoT applications

  • Discusses both case studies and programming tests on real hardware during industrial and student projects

  • Reviews the integration of smart devices with IoT

Internet of Things with 8051 and ESP8266 is intended for senior undergraduate and graduate students in electrical and electronics engineering, but anyone with an interest in the professional curriculum of electrical and electronics engineering will find this book a welcome addition to their collection.

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Section B

Interfacing of 8051 Microcontroller and NuttyFi/ESP8266 with I/O devices

5 Interfacing of 8051 and NuttyFi/ESP8266 with LED

Light Emitting Diode (LED) is semiconductor source of illumination that emits light once current start flowing through it. Once an acceptable current is applied to the leads, negatrons area unit able to combine with electron holes and emits energy within the photons. The color of emitted energy is decided by the band gap of the semiconductor.
Most of the LEDs are made of a spread of inorganic materials of semiconductor. Table 5.1 shows the colors with different wavelength and material.
TABLE 5.1
LED Color with Respect to Semiconductor Material
Color
Semiconductor Material
Wavelength [nm]
Voltage Drop [ΔV]
Infrared
Gallium arsenide (GaAs)
Aluminum gallium arsenide (AlGaAs)
λ > 760
ΔV < 1.63
Red
Aluminum gallium arsenide (AlGaAs)
Gallium arsenide phosphide (GaAsP) phosphide (AlGaInP)
610 < λ < 760
1.63 < ΔV < 2.03
Orange
Gallium arsenide phosphide (GaAsP)
Aluminum gallium indium phosphide (AlGaInP)
590 < λ < 610
2.03 < ΔV < 2.10
Yellow
Gallium arsenide phosphide (GaAsP)
Aluminum gallium indium phosphide (AlGaInP)
570 < λ < 590
2.10 < ΔV < 2.18
Green
Aluminum gallium indium phosphide (AlGaInP)
Aluminum gallium phosphide (AlGaP)
Indium gallium nitride (InGaN)
500 < λ < 570
1.9[93] < ΔV < 4.0
Blue
Zinc selenide (ZnSe)
Indium gallium nitride (InGaN)
Synthetic sapphire, Silicon carbide (SiC)
450 < λ < 500
2.48 < ΔV < 3.7
Violet
Indium gallium nitride (InGaN)
400 < λ < 450
2.76 < ΔV < 4.0
Ultraviolet
Indium gallium nitride (InGaN) (385–400 nm)
Diamond (235 nm)
Boron nitride (215 nm)
Aluminum gallium nitride (AlGaN)
Λ < 400
3 < ΔV < 4.1
Purple
Dual blue/red LEDs, blue with red phosphor, or white with purple plastic
Multiple types
2.48 < ΔV < 3.7
White
Cool/Pure White: Blue/UV diode with yellow phosphor
Warm White: Blue diode with orange phosphor
Broad spectrum
2.8 < ΔV < 4.2
The V-I characteristic of a LED is analogous to a diode, which implies that a tiny low amendment i...

Table of contents

  1. Cover
  2. Half Title
  3. Title Page
  4. Copyright Page
  5. Contents
  6. Preface
  7. Author’s Biographies
  8. SECTION A Basics of 8051 Microcontroller and IoT
  9. SECTION B Interfacing of 8051 Microcontroller and NuttyFi/ESP8266 with I/O devices
  10. SECTION C Interfacing of 8051 Microcontroller and NuttyFi/ESP8266 with Special Devices
  11. SECTION D Case Study Based on Data Logger to Cloud Server
  12. Index

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Yes, you can access Internet of Things with 8051 and ESP8266 by Anita Gehlot,Rajesh Singh,Praveen Kumar Malik,Lovi Raj Gupta,Bhupendra Singh in PDF and/or ePUB format, as well as other popular books in Technology & Engineering & Electrical Engineering & Telecommunications. We have over 1.5 million books available in our catalogue for you to explore.