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Questions and Answers

What command is used to find the inet address on the Raspberry Pi board?

  • ifconfig (correct)
  • sudo ip address
  • netstat
  • sudo find inet

Which software is required for establishing server client operations with Raspberry Pi?

  • WinSCP
  • Browser
  • Putty (correct)
  • FileZilla

What does enabling X11 forwarding in Putty allow the user to do?

  • Access files directly
  • Display system logs
  • Run graphical applications (correct)
  • Manage SSH keys

What protocol is used to send emails from the Raspberry Pi without using Gmail?

<p>SMTP (A)</p> Signup and view all the answers

What programming language is suggested for writing email sending scripts on the Raspberry Pi?

<p>Python (A)</p> Signup and view all the answers

What is the default port number set in Putty for SSH connections?

<p>22 (B)</p> Signup and view all the answers

What occurs when a terminal window is opened via Putty after logging in?

<p>Command prompt access to the Raspberry Pi (B)</p> Signup and view all the answers

Which of the following is NOT a required material for sending emails from Raspberry Pi?

<p>Email client software (A)</p> Signup and view all the answers

What command initializes the GSM module for SMS mode in the provided code?

<p>AT+CMGF=1 (A)</p> Signup and view all the answers

Which hardware component is NOT mentioned as required in the procedure to receive SMS?

<p>Computer (A)</p> Signup and view all the answers

What response is expected after sending the command 'AT' to the GSM module?

<p>OK (A)</p> Signup and view all the answers

Which pin of the Raspberry Pi is used to connect the RXD of the GSM module?

<p>8th pin (D)</p> Signup and view all the answers

What function does the receive_sms() perform in the code?

<p>Receives a text message (A)</p> Signup and view all the answers

Which command is used to silence the feedback from the GSM module?

<p>ATE0 (D)</p> Signup and view all the answers

What should be done if a keyboard interrupt is detected during the program execution?

<p>Close the serial connection (B)</p> Signup and view all the answers

What is the purpose of the buzzer mentioned in the 'Try it' section?

<p>To indicate message reception (B)</p> Signup and view all the answers

What is the primary difference between microcontrollers and microprocessors?

<p>Microcontrollers are often employed in embedded systems. (A)</p> Signup and view all the answers

Which of the following is true regarding Raspberry Pi compared to Arduino?

<p>Raspberry Pi has a higher power consumption than Arduino. (C)</p> Signup and view all the answers

Which component is usually NOT required externally for a microcontroller?

<p>Counters (D)</p> Signup and view all the answers

What is a significant characteristic of the Raspberry Pi regarding its capability?

<p>It can run any kind of operating system. (B)</p> Signup and view all the answers

How does the maximum disk storage capability of Raspberry Pi compare to Arduino?

<p>Raspberry Pi's disk size is dependent on SD card capacity. (D)</p> Signup and view all the answers

What is the maximum input voltage that can be supplied to an Arduino?

<p>7-12V (A)</p> Signup and view all the answers

Which of the following tasks is MOST likely to be performed by a microcontroller?

<p>Executing basic control functions in appliances. (D)</p> Signup and view all the answers

What is the minimum current requirement for the Raspberry Pi?

<p>700mA (A)</p> Signup and view all the answers

What is the correct pin number for connecting the D0 pin of the gas sensor to the Raspberry Pi?

<p>23 (A)</p> Signup and view all the answers

What component should be connected to the 24th pin of the Raspberry Pi?

<p>Positive terminal of the buzzer (A)</p> Signup and view all the answers

Which command is used to import the GPIO library in Python?

<p>import RPi.GPIO (A)</p> Signup and view all the answers

What action does the buzzer perform when the gas sensor detects gas?

<p>Activates (D)</p> Signup and view all the answers

Which two pins need to be connected to power the MQ2 sensor from the Raspberry Pi?

<p>VCC and GND (B)</p> Signup and view all the answers

What is the primary purpose of the automatic street light control system mentioned?

<p>To conserve energy by controlling lights based on light intensity (A)</p> Signup and view all the answers

Which type of sensor is used for detecting methane gas as per the content?

<p>MQ2 sensor (C)</p> Signup and view all the answers

How do you open the Python shell on the Raspberry Pi?

<p>Go to Terminal Window and type sudo idle (B)</p> Signup and view all the answers

What is the purpose of the provided Python program?

<p>To send an SMS using a GSM module (D)</p> Signup and view all the answers

Which pin of the Raspberry Pi is connected to the RXD of the GSM module?

<p>Pin 8 (C)</p> Signup and view all the answers

What command is used to set the GSM module to text mode?

<p>AT+CMGF=1 (A)</p> Signup and view all the answers

What should be included in the program to handle the GSM connection?

<p>Serial communication settings (D)</p> Signup and view all the answers

What is the purpose of the 'time.sleep(1)' command within the program?

<p>To allow time for the GSM to initialize (A)</p> Signup and view all the answers

Which line of code is responsible for sending the actual SMS content?

<p>ser.write(content.encode() + b’ ’) (C)</p> Signup and view all the answers

What material is NOT required for sending the SMS using the program?

<p>LED lights (C)</p> Signup and view all the answers

What is the first command that establishes communication with the GSM module?

<p>ser.write(b’AT ’) (B)</p> Signup and view all the answers

What happens when the soil is dry according to the procedure?

<p>The motor is turned ON automatically. (A)</p> Signup and view all the answers

Which pin is used to read input from the soil moisture sensor?

<p>Pin 16 (D)</p> Signup and view all the answers

In the program, which command sets up the GPIO pin mode?

<p>GPIO.setmode() (C)</p> Signup and view all the answers

What is the purpose of the flame sensor in the fire accident detection project?

<p>To detect the presence of fire. (C)</p> Signup and view all the answers

Which component is used to control the pump motor in the project?

<p>Motor driver (A)</p> Signup and view all the answers

What command is used to prevent warnings in the GPIO setup?

<p>GPIO.setwarnings(False) (C)</p> Signup and view all the answers

How does the program indicate the status of the motor?

<p>By printing the motor status to the Raspberry Pi connected PC. (D)</p> Signup and view all the answers

Which action is NOT part of the procedure outlined for setting up the project?

<p>Connect the sensor's VCC to the output pin of the motor driver. (A)</p> Signup and view all the answers

Flashcards

Microcontroller

A single chip containing a CPU, memory (RAM, ROM), and input/output (I/O) ports, designed to perform a specific task.

Microprocessor

A single chip CPU that needs external components for memory and I/O.

Raspberry Pi

A single-board computer with a microprocessor, designed for various projects and uses.

Arduino

A microcontroller board with a microcontroller chip and input/output pins, commonly used for creating interactive projects.

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GPIO Pins

General Purpose Input/Output pins. These are the pins that allow the microcontroller or microprocessor to communicate with the external world.

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Raspberry Pi OS

The operating system specifically designed for use with Raspberry Pi.

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MicroSD card

A small storage card commonly used to store data on Raspberry Pi.

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Raspberry Pi Imager

Software that quickly and easily installs Raspberry Pi operating systems onto a SD Card.

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Sending SMS via GSM

Using a GSM module to send text messages from a Raspberry Pi to a mobile phone.

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GSM Module

A device that allows communication over a cellular network. Used for sending/receiving SMS.

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Raspberry Pi

A small computer used to run the program to send messages through GSM.

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Python Script

A program written in Python language to send messages from Pi to GSM module and to the Mobile.

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AT Commands

Special commands used to communicate with the GSM module.

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Serial Communication

A method of transferring data sequentially over wires, used in Pi and GSM communication.

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GSM SMS Receiving Program

Python code that allows a Raspberry Pi to receive text messages from a mobile phone via a GSM module.

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Mobile Recipient Number

The phone number the SMS needs to be sent to.

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Serial Communication

Method of sending data between devices bit by bit, often over wires.

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SMS Content

The text message to be sent through the cellular network.

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Raspberry Pi

Small computer often used in projects, allowing many types of communication.

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GSM Module

Hardware device that enables communication with the mobile network.

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AT Commands

Set of commands used to control the GSM module. Commands start with AT.

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Python's serial Library

Python library used to interact with serial communication ports.

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Message Reception

Process of retrieving text messages from a mobile.

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ser.readline()

Python function that reads data from the serial port until a newline character is received.

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Raspberry Pi Server

A Raspberry Pi board acting as a central computer for clients to communicate with.

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Client System

A personal computer or other device that connects to and utilizes the server's resources.

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IP Address

A unique numerical label assigned to each device connected to a computer network.

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SSH

Secure Shell protocol for secure remote login to a computer.

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Putty Software

Software used to connect to a remote computer.

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Python Coding

Programming language used to create instructions for Raspberry Pi.

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SMTP

Simple Mail Transfer Protocol for sending email.

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MQ2 sensor

A sensor used to detect gas, particularly flammable gases.

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Gas Leakage Detection

Using a sensor to discover the presence of dangerous gases, alerting people to potential threats.

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GPIO (General Purpose Input/Output)

Pins on the Raspberry Pi used for digital input and output.

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Buzzer Alarm

A device that produces a sound to alert of an event like gas present.

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LDR Light Sensor Circuit

A system that automatically controls light for power saving.

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Automatic Street Light Control

A system that turns lights on at night and off during the day, conserving energy.

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Python Script

A computer program written in Python that controls the sensor/alarm system.

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Methane, gas detection

Use a sensor designed specifically for this type of gas such as MQ-3.

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Soil Moisture Sensor

A device that detects the amount of water in the soil.

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Motor Driver

A circuit board that controls a motor by receiving signals from a computer.

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GPIO Pin

A pin on the Raspberry Pi that can be used for input or output.

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Python Script

A computer program written in Python.

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Raspberry Pi

A small, single-board computer.

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Water Pump Control

Turning the water pump on and off based on soil moisture level.

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Fire Detection

Using a sensor to detect fire.

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Fire Accident Intimation

Providing a warning/indication when fire is detected.

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Study Notes

Robotic Makers Level 2 - Overview

  • Autobots is a tie-up industry of Bharathidasan University's IECD.
  • IECD is the Institute for Entrepreneurship and Career Development.
  • The institution is focused on higher education, research, and extension activities.
  • They provide skill development programs (certificate, diploma, and advanced diploma/PG Diploma).
  • Autobots' mission is to inspire learning, trigger thinking, and enhance creativity in modern students.
  • They partner with schools to help students achieve learning objectives and become creative designers.

Robotics Makers Level 2 - Syllabus

  • Unit 1: Raspberry Pi Introduction: Introduces Raspberry Pi boards, different models, applications, and hardware features.
  • Unit 2: Inbuilt Peripherals of Raspberry Pi: Discusses System on Chip (SOC), ARM processors, GPIO pins, analog to digital conversion, and microcontroller differences.
  • Unit 3: OS Installation and Programming: Covers OS installation (using Raspberry Pi Imager), Linux commands, and Python programming.
  • Unit 4: Interfacing Input/Output Devices: Explains interfacing with input/output devices (sensors, controlling devices, communication with real world).
  • Unit 5: Internet of Things (IoT): Provides an overview of IoT, IP addresses, applications, and game development using Scratch software.

Robotics Makers Level 2 - Practical 1

  • Practical 1.1: Blink an LED: Includes code and procedure for an LED blink program.
  • Practical 1.2: Control LED using Switch: Includes code and procedure for controlling an LED with a switch.
  • Practical 1.3: Control DC Motor: Includes code and procedure for controlling a DC motor.
  • Practical 1.4: Change Motor Direction: Includes code and procedure for controlling motor direction.
  • Practical 1.5: Object Detection Using Sensor: Includes code and procedure for object detection using an IR sensor.
  • Practical 1.6: Interface Android Phone: Includes code and procedure for controlling lights via android phone using Bluetooth module.
  • Practical 1.7: Sending SMS using GSM: Includes code and procedure for sending SMS using GSM module.
  • Practical 1.8: Receiving SMS using GSM: Includes code and procedure for receiving SMS using GSM module.
  • Practical 1.9: Server Client Operation: Includes code and procedure for server-client communication using putty.
  • Practical 1.10: Sending Emails using Raspberry Pi (with image attachments): Includes code and procedure for sending emails with attachments

Robotics Makers Level 2 - Practical 2

  • Practical 2.1: Smart Gas Leakage Intimation: Includes code and procedure for gas leakage detection and intimation via buzzer.

  • Practical 2.2: Automatic Street Light Control: Includes code and procedure for automatic street light control using an LDR sensor.

  • Practical 2.3: Motion Detection of Animals: Includes code and procedure for detecting animal movement using a PIR sensor and indicating using a buzzer.

  • Practical 2.4: Smart Agri-Tech: Includes code and procedure for controlling water pumps in agricultural land based on soil moisture levels.

  • Practical 2.5: Fire Accident: Includes code and procedure for detecting fire and producing an alarm.

  • Practical 2.6: Home Automation: Includes code and procedure for controlling home appliances (fans, lights etc) using a mobile phone and Bluetooth connection.

  • Practical 2.7: Theft Intimation Vehicle: Includes code and procedure for sending SMS alerts to specified phones when theft is detected.

  • Practical 2.8: Security System Using Camera Module: Includes code and procedure for continuous photo capture using a camera and sending it to an email address when movement is detected.

  • Practical 2.9: IoT and RPi Based Email/SMS Alert to Avoid Crime: Includes code and procedure to capture images of a specified location and automatically send them via email to specific email addresses based on motion detection.

  • Practical 2.10: Smart Home Using RPi: Includes code and procedure for automating home appliances and alerting for gas or fire hazards.

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