This set of AVR Micro-controller Multiple Choice Questions & Answers (MCQs) focuses on “SPI Protocol”. 1. Why do we make the connection of the SCLK for communicating serially between two devices? a) to get a clock output from the device b) to synchronize the two devices c) to obtain an analog output d) all of … Read more
This set of AVR Microcontroller Interview Questions and Answers for Experienced people focuses on “Interfacing with Motors”. 1. Why are relays used for driving the motors? a) they can be used as switch as well as they provide isolation b) they increase the current capability required by the motors c) they are used to reduce … Read more
This set of AVR Microcontroller Questions and Answers for Experienced people focuses on “Interfacing with RTC”. 1. RTC is used for __________ a) conversion b) communication c) real time and clock measurement d) memory management 2. RTC chips use ______ to compute time, date when the power is off. a) ac supply b) generators c) … Read more
This set of AVR Microcontroller Interview Questions and Answers for freshers focuses on “Interfacing with 8255”. 1. The 8255 is a ______ chip. a) Input/Output b) Analog to Digital c) Digital to analog d) None of the mentioned 2. Which pins of a microcontroller are directly connected with 8255? a) RD b) WR c) D0-D7 … Read more
This set of AVR Micro-controller Multiple Choice Questions & Answers (MCQs) focuses on “Sensor Interfacing”. 1. Which of the following is correct about the word sensors? a) that senses something b) it is a type of a transducer that converts one form of energy to another c) it can produce output in the form of … Read more
This set of AVR Microcontroller Questions and Answers for Freshers focuses on “ADC, DAC Interfacing”. 1. Which of the following is correct about the word resolution in ADC DAC converters in AVR’s? a) it is the smallest change that can be described by an ADC b) it is equal to Vref/2n (where n represents the … Read more
This set of AVR Microcontroller Problems focuses on “Keyboard Interfacing”. 1. In reading the columns of a keyboard matrix, when no key is pressed then all the pins show? a) 0 b) 1 c) F d) 7 2. To see if any key is pressed, all rows are grounded. a) true b) false c) can’t … Read more
This set of AVR Micro-controller Multiple Choice Questions & Answers (MCQs) focuses on “LCD Interfacing”. 1. In AVR, the LCD operates in two main modes, it can be in 8 bit or 4 bit data. a) true b) false c) depends on the situation d) can’t be said 2. What can be the sequence of … Read more
This set of AVR Microcontroller Interview Questions and Answers focuses on “Serial Port Communication”. 1. What actually are the DB9, DB25 ports available in our computers? a) they are connectors used to transfer data either serially or parallelly b) they are the RS232 connectors used to connect two incompatible devices c) they are the TTL … Read more
This set of AVR Micro-controller Multiple Choice Questions & Answers (MCQs) focuses on “Interrupt Programming”. 1. On reset, what are the contents of the SREG register? a) 00h b) ffh c) 1fh d) 11h 2. TIMSK register is used for? a) knowing the status of the timer count b) used for masking the interrupts flags … Read more
