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MCQ Problems / Explanations

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MCQ's

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How many types of arduinos do we have?
S Arduino
A
B
C
Explanation
There are 4 Arduino boards and 4 Arduino shields that fit on top of Arduino compatible boards to provide additional capability like connecting to the internet, motor controller, LCD screen controlling etc
D
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What is the microcontroller used in Arduino UNO?
S Arduino
A
Explanation
ATmega328p is a microcontroller which is 32KB of flash ROM and 8-bit microcontroller.
B
C
D
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What does p refer to in ATmega328p?
S Arduino
A
B
Explanation
Picopower technology employs advanced features like multiple clock domains, DMA and event systems to minimize power consumption.
C
D
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Arduino shields are also called as _________
S Arduino
A
B
Explanation
The Arduino boards can connect with add- on modules termed as shields. Multiple, and possibly stacked shields may be individually addressable via an I2C serial bus.
C
D
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What is the default bootloader of the Arduino UNO?
S Arduino
A
Explanation
The optiboot bootloader will take 512 bytes, leaving 32256 bytes for application code. Due to its small size larger up-loadable sketch size is achieved.
B
C
D
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Does the level shifter converts the voltage levels between RS-232 and transistor-transistor logic.
S Arduino
A
Explanation
Level shifters are used in multi-design, different blocks work on different voltage levels. So when a signal passes from one voltage domain to another voltage this is needed particularly when a signal passes from low level to high level.
B
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Which is the software or a programming language used for controlling of Arduino?
S Arduino
A
B
C
D
Explanation
A program for Arduino can be written in any programming language for a compiler that produces binary machine code for the target processor.
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Do Arduino provides IDE Environment?
S Arduino
A
Explanation
It includes a code editor with features as texti cutting and pasting, searching and replacing text, automatic indenting, brace matching, syntax highlighting, and provides simple one-click mechanism to compile and uplaod programs to an Arduino board.
B
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A program written with the IDE for Arduino is called _________
S Arduino
A
B
Explanation
Sketches are saved on the development computer as text files with the file extension .ino. Arduino software (IDE) pre-1.0 saved sketches with the extension file .pde.
C
D
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Arduino IDE consists of 2 functions. What are they?
S Arduino
A
B
C
Explanation
Setup() is called once in the program when a sketch starts after power-up. It is used to initialixe variables, input and output pin modes, and other libraries needed in the sketch.
Loop() is used after setup() been called, function loop() is executed repeatedly in the main program. It controls the board until the board is powered off or is reset.
D
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