18 Questions
What is the primary function of the loop() function in an Arduino program?
To execute the main code repeatedly
What is the purpose of the resistor in the circuit?
To limit the current flowing through the LED
What is the unit of time accepted by the delay() function?
Milliseconds
What is the role of the breadboard in the circuit?
To build and test circuits without soldering
What is the name of the Arduino board mentioned in the text?
All of the above
What is the purpose of the setup() function in an Arduino program?
To initialize the Arduino board and its components
What is the purpose of the handle_led2off() function?
To update the status of LED2 to OFF
What is the HTTP status code sent by the handle_NotFound() function?
404
What is the purpose of the Serial.println() function in the handle_led2off() function?
To print a debug message to the serial console
What is the mode of operation used by the ESP8266 in this code?
Access Point mode
What is the purpose of the SendHTML() function?
To generate and send HTML content to the client
What is the data type of the LED1status and LED2status variables?
uint8_t
What is the purpose of the WiFi.softAPConfig function?
To configure the soft AP's IP, gateway, and subnet
What is the purpose of the pinMode function?
To configure a pin as an output
What is the purpose of the digitalWrite function?
To send digital data through a pin
What is the purpose of the server.on function?
To handle different HTTP requests
What is the purpose of the Serial.begin function?
To configure the serial communication protocol
What is the purpose of the ESP8266WebServer function?
To create a web server
Study Notes
Arduino Program Structure
- The
setup()function is executed once at the beginning of an Arduino program. - The
loop()function is the heart of an Arduino program, running repeatedly until the Arduino is powered off or reset.
Variables and Functions
-
LEDpinanddelayTare integer variables used in the program. - The
delay()function accepts values in milliseconds.
Components Required
- 1 X LED
- 1 X Resistor, 330 Ohm
- 1 X Breadboard
- 1 X Arduino UNO R3 or Arduino UNO SMD (or any other Arduino Boards)
- Jumper wires
Components Description
- LED: controlled by the program.
- Resistor: used for current limiting for each LED.
- Breadboard: used for building and testing circuits without soldering.
- Arduino UNO R3 or Arduino UNO SMD: used as the microcontroller board.
ESP8266 Web Server
-
ESP8266WebServeris used to create a web server on the ESP8266 board. - The
serverobject is used to handle HTTP requests and responses. -
handle_OnConnect(),handle_led1on(),handle_led1off(),handle_led2on(), andhandle_led2off()are functions used to handle specific HTTP requests.
This quiz is about programming an ESP32 microcontroller to control LEDs and create a web interface. It covers C++ programming, serial communication, and HTML/CSS for web development.
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