18 Questions
What is the operating voltage of the Arduino Uno board?
5V
How many analog input pins are available on the Arduino Uno board?
6
What is the recommended input voltage range for the Arduino Uno board?
7V to 12V
How much flash memory does the Arduino Uno board have?
32 KB
What is the clock speed of the Arduino Uno board?
16 MHz
Describe a key advantage of using the Arduino IDE for programming.
Simplified version of C++, making it easier to learn to program
What is the purpose of the setup() function in the Arduino code?
To initialize the serial communication at a baud rate of 9600 and set the trigger pin as output and echo pin as input.
What is the formula used to calculate the distance in the Arduino code?
(duration * 0.0343) / 2
What is the main function of the DHT11 sensor in the lab experiment?
To measure temperature and humidity accurately.
What are the hardware requirements for the DHT11 sensor experiment?
Arduino Uno, DHT11 sensor, breadboard, and jumper wires.
What is the purpose of the pulseIn() function in the Arduino code?
To measure the time taken for the ultrasonic wave to bounce back.
What is the importance of installing the DHT sensor library in the Arduino IDE?
To be able to access the functions and classes needed to read data from the DHT11 sensor.
What is the purpose of the analogWrite(enA, 255) function in the Arduino sketch?
To set the motor speed
What is the role of the pinMode(enA, OUTPUT) function in the Arduino setup?
To configure the pin as an output
What is the purpose of the delay(2000) function in the Arduino loop?
To introduce a delay of 2000 milliseconds
What is the significance of the in1 and in2 pins in the motor driver module?
To control the direction of the motor
What is the purpose of the motor driver module (L298N) in the circuit?
To control the DC motor
What is the role of the Arduino Uno in the circuit?
To control the DC motor and motor driver module
Study Notes
Arduino Board Features
- Operating voltage of Arduino Uno is 5V
- Recommended input voltage ranges from 7V to 12V
- Input voltage ranges from 6V to 20V
- Digital input/output pins are 14
- Analog input pins are 6
- DC Current for each input/output pin is 40 mA
- DC Current for 3.3V Pin is 50 mA
- Flash Memory is 32 KB
- SRAM is 2 KB
- EEPROM is 1 KB
- Clock Speed is 16 MHz
Arduino IDE
- Arduino IDE is an open-source software
- It is an Integrated Development Environment (IDE)
- Developed by arduino.cc
- Allows writing and uploading code to Arduino boards
Ultrasonic Sensor with Arduino
- The ultrasonic sensor is connected to trigPin (3) and echoPin (2)
- The code uses pulseIn function to calculate distance in cm
DHT11 Temperature and Humidity Sensor with Arduino
- DHT11 sensor is used to measure temperature and humidity
- The sensor is connected to a digital pin (e.g., pin 2) on the Arduino Uno
- The DHT library by Adafruit is used to interface the sensor with Arduino
Controlling a DC Motor with Arduino
- The DC motor is connected to a motor driver module (L298N)
- The motor driver module is connected to the Arduino Uno
- The code uses PWM signals to control the speed and direction of the motor
DHT11 Temperature and Humidity Sensor with Raspberry Pi
- The DHT11 sensor is connected to GPIO pins on the Raspberry Pi
- A Python script is used to read temperature and humidity data from the sensor
Test your knowledge on the features of the Arduino Uno board, including its ease of programming without a separate programmer, simplified C++ language in Arduino IDE, and the standard form factor that makes micro-controller functions accessible.
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