Title Arduino Board.pdf ✅

Why is the Arduino Mega more a viable solution when dealing with complex projects, than the Arduino UNO? a) Higher SRAM on the Arduino Mega b) More number of GPIO pins on the Arduino Mega c) More flash memory on the Arduino Mega d) Higher power rating on the Arduino Mega The Arduino UNO has 14 pins for IO of which 6 support PWM, while the Arduino Mega has 54 pins for IO of which 14 support PWM. Moreover, the Arduino Mega uses the Atmega2560 microcontroller which has an SRAM of 4K bytes and a flash memory of 256K bytes, whereas the Arduino UNO which is supported by the Atmega328P microcontroller has an SRAM of only 2K bytes and a flash memory of a mere 32K bytes. Which Arduino board is famous for integration with fabric-based projects? a) The LilyPad b) The UNO c) The Mega d) The Nano The Arduino LilyPad is specifically designed for being sewn into fabrics for the purpose of e-textile projects. It comes in 2 variants, one powered by the Atmega328V and the Atmega168V. It has a flash memory of 16K bytes and an SRAM of 1K byte. Which Arduino Product is not just a board but also comes preinstalled with wheels and a motor board. a) The LilyPad b) The Robot c) The Flora d) The Mega Which Arduino Board contains an onboard joystick? a) Arduino Esplora b) Arduino Nano c) Arduino Due d) Arduino UNO For projects where a small microcontroller is required, which boards should we use? a) Arduino Yun, Leonardo b) Arduino Esplora, Robot c) Arduino Due, Mega, Uno d) Arduino LilyPad, Nano What is the operating frequency of the Arduino UNO Board? a) 20 MHz b) 16 Mhz c) 6 MHz d) 10 MHz The Arduino UNO makes use of the ATmega328 Processor which has an operating frequency of 16 MHz and a maximum operating frequency of 20 MHz which is not advisable since the higher the switching speed, the hotter the chip will get and may even lead to physical damage of the board.
Analog Pins in the Arduino boards work on the principle of PWM. What is the full form of PWM? a) Pin Wide Modulation b) Pulse Waveform Modulation c) Pulse Width Modulation d) Pulse Wave Modulation How much Program Memory does the Arduino UNO have? a) 24K bytes b) 256K bytes c) 32K bytes d) 2K bytes The Arduino UNO is powered by the ATmega328 Processor which has a flash memory (A type of memory that is retained by the chip even after the power supply to the chip is cut off) of 32K bytes. What is the full form of EEPROM? a) Electrically Erasable Programmable Read Only Memory b) Electrically Encoded Programmable Read Only Memory c) Electronic Embedded Programmable Read Only Memory d) Encrypted Electronic Programmable Read Only Memory EEPROM is a type of non-volatile memory which can be programmed and erased by voltage pulses as input. It’s used to handle small amounts of data. Originally EEPROMs supported only small amounts of data handling limited to 1 Byte. But however, nowadays EEPROMs can support page operations of many bytes. What is the full form of SRAM? a) Synchronized Random Access Memory b) Static Random Access Memory c) Simplified Random Access Memory d) Segregated Static Random Access Memory SRAM is a type of volatile memory (volatile as in, it retains the data as long as power is being supplied to it), which is used for faster access of data. It uses bistable latching circuitry to store data bit by bit. Here, a latch is also called a flip flop which basically has two states depending upon the input signal and it is in this way it stores each bit of data. The Arduino UNO uses the FTDI USB to Serial Driver Chip. a) True b) False What is the use of the Arduino.h header file? a) It gives root access to the microcontroller’s file system b) It enables the programmer to access all of Arduino’s core functionality c) It allows other people to create libraries for the Arduino code d) It doesn’t have any use and can be omitted at any point of time in the code The Arduino.h file is not something that we encounter during the process of writing the code for the Arduino board because the preprocessor takes care of it before compilation. However, it is a very important file without which we cannot
access the Arduino’s features like GPIO IO, Analog IO, etc. How many architectures does the Arduino subfolder in the Hardware section contain? a) 2 b) 3 c) 4 d) 9 The Arduino subfolder of the Hardware section contains support for 2 architectures; AVR and SAM. The AVR Microcontrollers are included in the most common Arduino Boards like the Uno, Nano, Mega, etc. However, some Arduino Boards like the Arduino Due don’t use AVR but use the SAM 32-bit ARM processors. How many configuration files are there which allows us to customize the architecture in an Arduino in order to add support for custom boards? a) 1 b) 2 c) 3 d) 4 After the compilation process, the file containing the assembly instructions for the microcontroller is stored in a file. What is the file type? a) .o b) .hex c) .cpp d) .hpp Which of the following file format is generated once the C code is compiled? a) .c b) .h c) .ino d) .o All C code is compiled to a .o file. This file format is called the Object File Format. The compiler creates these object files during compilation, for each source code and then links each of these together for making the executable file for that language. What is the .d file format’s use in C? a) For managing dependencies b) For the D programming language c) For storing the variables and memory locations d) For creating new errors in dependencies Why does every compilation of a source code in Arduino check for previous compilations? a) To delete the previously generated “.o” files b) To use the previously generated “.o” files c) To relocate the previously generated “.o” files d) To copy the previously generated “.o” files How to view each command that gets executed during the compilation process? a) Enable Verbose Output b) Disable Verbose Output c) Show Sketch Folder
d) Open Serial Plotter What is the full form of UART? a) Universal Asynchronous Receiver/Transmitter b) Universal Anti-Rectifying Transmitter c) Universal Asynchronous Radio Transmitter d) Universal Asynchronous Rectifier Transistor The UART architecture is a very important part of Serial Communications. It is not a protocol like the I2C or SPI, but a physical circuit configuration. Serial communication uses the UART architecture to send and receive the data serially from the computer. In Serial Communications, how many sections is a data packet divided into? a) 1 b) 2 c) 3 d) 4 Does the UART Architecture require an external clock? a) Yes b) No UART stands for Universal Asynchronous Receiver/Transmitter. This means all communication here is not governed by the presence of a clock unlike the I2C and the SPI protocol which require an extra pin for performing serial communications. What is the purpose of the following code? void setup() { Seria.begin(9600); } void setup() { Serial.write(40); } a) Send a byte with value 40 through the Serial pins b) Send a signal to pin 40 on the Arduino board c) Send a hexadecimal number of 40 through the Serial pins d) Send a octal number of 40 through the Serial pins The above code uses the serial pins on the Arduino Board. The data is sent in the form of a byte whose value is 40. This data is processed into a data packet where the additional sections are added to number 40 and then send using UART. What is the function in Arduino that is capable of reading Strings from a stream and store the acquired value into a String? a) Stream.readstring() b) Stream.stringread() c) Stream.readString() d) Stream.readfromstring() The Stream.readString() is a function that belongs to the Stream class. It’s capable of reading any String from a stream and then store the output into a String. This function can also be called from the Wire class. There is a timeout for this reading which is defined by the setTimeout() function.