Electronics Projects with the Esp8266 and Esp32: Building Web Pages, Applications, and Wifi Enabled Devices

ISBN-13: 9781484263358 / Angielski / Miękka / 2020 / 697 str.

Neil Cameron

Spis treści

Chapter 1: Internet radio

• Station display and selection

• Minimal internet radio

Chapter 2: Internet clock

• WS2812 RGB LEDs responsive to sound

• LED rings clock 24

• Network Time Protocol

Chapter 3: International weather station

• Touch screen calibration

• Painting on-screen

• Weather data for several cities

Chapter 4: Intranet camera

• Save images to SD card

• Load images on webpage

• Stream images to webpage

Chapter 5: MP3 player

• Control command for MP3 player

• MP3 player control with Arduino

• Infrared remote control of MP3 player

• Creating sound tracks

• Speaking clock

• Voice recorder

Chapter 6: Bluetooth speaker

Chapter 7: ESP8266 local server

• HTTP request

• HTML code

• XML HTTP requests, JavaScript and AJAX

Chapter 8: Updating a webpage

• XML HTTP requests, JavaScript and AJAX

• JSON

• Accessing WWW data

• Parsing text

• Console log

• Wi-Fi connection

Chapter 9: WebSocket

• Remote control of pan-tilt servo motors and WebSocket

• Websocket and AJAX

• Access images, time and sensor data over the internet

Chapter 10: Build an app

• Control and feedback app

• Install the app

• Servo-robot control app

• Speech recognition app

Chapter 11: App database and Google Maps

• MIT App Inventor database

• MIT App Inventor and Google Maps

Chapter 12: USB OTG apps

• app receive

• app transmit

• app receive and transmit

Chapter 13: GPS and Google Maps

• GPS position transmission

• Validate transmission of GPS location

• Improve GPS location signal

Chapter 14: Radio Frequency Communication

• Transmitting and receiving text

• Decode Remote Control Signals

• Control Pan-Tilt Servos with RF Communication

• Control relay with RF Communication

• Relays

Chapter 15: Signal generation

• Signal generation

• Digital to analog conversion

• Generating waves

• Port manipulation

• 12-bit DAC

Chapter 16: Signal generation with 555 integrated circuit

• Monostable mode

• Bistable mode

• Astable mode

• Variable duty cycle

• 50% duty cycle

• PWM mode

• Function generator

• Square wave to sine wave

Chapter 17: Measuring electricity

• Analog to Digital Converter

• Voltage meter

• Resistance meter (ohmmeter)

• Capacitance meter

• Current meter (ammeter)

• Current sensor

• Solar panel and battery meter

• Inductance meter

Chapter 18: Rotary encoder control

• Interrupts

• Debouncing

• Square wave states

• State switching

• Incrementing a value

Chapter 19: Saving data

• Saving to EEPROM

• Saving directly to Excel

Chapter 20: Microcontrollers

• Arduino Uno

• Arduino Nano

• Arduino Pro Micro

• LOLIN (WeMos) D1 mini

• Interrupts

• Watchdog timer

• ESP32

• ESP32 analog input

• ESP32 analog output

• ESP32 pulse width modulation

• ESP32 capacitive touch sensor

• ESP32 Hall effect sensor

• ESP32 RTC and sleep mode

• ESP32 and interrupts

• ESP32 Serial input

• ESP32 Bluetooth communication

• Wi-Fi communication

Appendix

Libraries

O autorze

​Neil Cameron is an experienced analyst and programmer with a deep interest in understanding the application of electronics. Neil wrote the book 'Arduino Applied: Comprehensive Projects for Everyday Electronics'. He has previously taught at University of Edinburgh and Cornell University.

Blurb

Discover the powerful ESP8266 and ESP32 microcontrollers and their Wi-Fi communication. The ESP32 microcontroller features Bluetooth and BLE communication in addition to Wi-Fi. The book emphasizes practical projects and readers are guided through Wi-Fi and Bluetooth communication, mobile app design and build, ESP-NOW and LoRa communication, and signal generation.

Projects throughout the book utilize the Wi-Fi functionality and processing power of the ESP microcontrollers. Projects are built in the Arduino IDE, so you don't need to download other programming software. Mobile apps are now ubiquitous, making the app build projects of the book very relevant, as are the web page design projects.

In Electronics Projects with the ESP8266 and ESP32, you'll see how easy and practical it is to access information over the internet, develop web pages, build mobile apps to remotely control devices with speech recognition or incorporate Google Maps in a GPS route tracking app.

You will

·       Build practical electronics projects with an ESP8266 or ESP32 microcontroller with Wi-Fi communication

·       Use the Wi-Fi function of the ESP8266 and ESP32 to update web pages

·       Communicate with your mobile phone or smart watch by Bluetooth Low Energy

·       Transmit and receive information to control remote devices over the internet

·       Understand the design and build of mobile apps for internet based applications

·       Apply your computer programming skills in C++, JavaScript, AJAX and JSON

·       Use WebSocket, MQTT brokers and IFTTT for fast two-way communication with webpages