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Microcontrollers and Embedded Systems (MES) important questionsMost repeated in SPPU papers

These 39 questions appeared in more than one SPPU Microcontrollers and Embedded Systems paper we have: 9 papers, from May 2023 to Nov 2025. The most-asked come first. Each one links to the papers it was asked in.

All MES papers and notes

Repeated questions

Endsem questions (35)

  1. 5×asked

    Write a program for PIC18 to transfer the letter ‘T’ serially at the baud rate of 9600, continuously. Assume XTAL=10MHz.

    Nov 2025 ·May 2025 ·Nov 2024 ·May 2024 ·Nov 2023

  2. 3×asked

    List steps for programming PIC18 to receive data serially

    Nov 2025 ·May 2025 ·May 2023

  3. 3×asked

    Draw CCP1CON and list the steps involved in programming PIC18F458 microcontroller in PWM mode.

    May 2025 ·Nov 2023 ·May 2023

  4. 3×asked

    Enlist Interrupt registers in PIC18F458.Explain any two.

    May 2025 ·Nov 2023 ·May 2023

  5. 3×asked

    How DC motor speed control is achieved using PWM mode of CCP module of PIC18F458.

    May 2025 ·Nov 2024 ·Nov 2023

  6. 2×asked

    Draw and explain Serial communication USART transmit block diagram

    Nov 2025 ·May 2024

  7. 2×asked

    Explain how time period and duty cycle is set for generation of a waveform using PWM mode of CCP module.

    Nov 2025 ·May 2024

  8. 2×asked

    List the step for compare mode programming of CCP module of PIC18.

    Nov 2025 ·May 2024

  9. 2×asked

    State the features of ADC of PIC18F458

    Nov 2025 ·May 2024

  10. 2×asked

    State the Sensors used for temperature measurement. Draw flow chart for temperature measurement using ADC of PIC 18.

    Nov 2025 ·May 2024

  11. 2×asked

    What the steps in executing an interrupt.

    Nov 2025 ·May 2024

  12. 2×asked

    Which bits are used to set the conversion time of ADC

    Nov 2025 ·May 2024

  13. 2×asked

    Write a C program to create 2KHz PWM frequency with 75% duty cycle on CCP1 pin. Assume XTAL=10Mhz.

    Nov 2025 ·May 2024

  14. 2×asked

    Write a C program to get data from Channel 0 (AN0) using ADC interrupt and displays the result on PORTC and PORTD.

    Nov 2025 ·May 2024

  15. 2×asked

    Draw a neat diagram and flow chart, explain AC voltage measurement using PIC microcontroller. 3

    May 2025 ·Nov 2023

  16. 2×asked

    Explain features of on-board ADC of PIC18F458. Also explain in detail the functions of ADIF and ADFM bits.

    May 2025 ·May 2023

  17. 2×asked

    Explain in detail the function of following flags related to on board ADE of PIC microcontroller: i) ADIF ii) Go/Done iii) ADFM iv) ADON

    May 2025 ·Nov 2023

  18. 2×asked

    List out timers used for CCP module in PIC18F458. Also explain CCP registers used in detail.

    May 2025 ·Nov 2023

  19. 2×asked

    With the help of interfacing diagram and flow chart, explain how PIC microcontroller can be used to measure temperature using LM35 sensor.

    May 2025 ·Nov 2023

  20. 2×asked

    Write a C Program for PIC18 toggle the LED connected to pin7 of the PORT B every time INT0 is activated by a switch connected at INT0(RB0). Assume XTAL=10MHz.

    May 2025 ·May 2023

  21. 2×asked

    Write a short note on interrupt structure of PIC18F458 microcontroller.

    May 2025 ·Nov 2024

  22. 2×asked

    Describe programming steps of Capture mode.

    Nov 2024 ·May 2024

  23. 2×asked

    Differentiate between Interrupt method and polling method.

    Nov 2024 ·May 2024

  24. 2×asked

    Draw and explain block diagram of USART transmitter in PIC18. 

    Nov 2024 ·Nov 2023

  25. 2×asked

    Explain bit configuration of ADCON0.

    Nov 2024 ·May 2024

  26. 2×asked

    Explain bit configuration of CCP1CON.

    Nov 2024 ·May 2024

  27. 2×asked

    Explain how 8 and 9 bit data is transmitted in serial communication?

    Nov 2024 ·May 2024

  28. 2×asked

    Explain importance of TSR in serial communication.

    Nov 2024 ·May 2024

  29. 2×asked

    Explain steps in enabling and disabling interrupts.

    Nov 2024 ·Nov 2023

  30. 2×asked

    With the help of interfacing diagram explain how PC microcontroller can be used to measure temperature using LM35.

    Nov 2024 ·May 2024

  31. 2×asked

    Write a program to generate a square wave that is half the frequency of signal applied at INT0 on PORTB.5 2

    Nov 2024 ·May 2024

  32. 2×asked

    Write a program to generate a square wave with frequency 10kHz and 50% duty Cycle on the CCP1 pin, use Timer 1.

    Nov 2024 ·May 2024

  33. 2×asked

    Write down programming steps to transfer data serially.

    Nov 2024 ·May 2024

  34. 2×asked

    Explain the steps of PWM Programming in CCP Module. Find the minimum and maximum PWM frequency allowed for XTAL=10MHz.

    Nov 2023 ·May 2023

  35. 2×asked

    State steps the microcontroller does perform upon activation of an interrupt.

    Nov 2023 ·May 2023

Insem questions (4)

  1. 3×asked

    Explain in brief with neat diagram the data memory organization of PIC 18.

    Aug 2025 ·Oct 2024 ·Oct 2023

  2. 2×asked

    Compare CISC and RISC architectures.

    Aug 2025 ·Oct 2024

  3. 2×asked

    Explain T0CON and find value for T0CON register if Timer 0 used in 16-bit mode, 1:64 prescaler, and uses internal clock frequency (Fosc/4) for clock Source. XTAL=10MHz. 

    Aug 2025 ·Oct 2024

  4. 2×asked

    Write a C program to generate a delay of 10msec on pin RB2 using Timer0 programming 1:4 prescaler, assume XTAL = 10 MHz.

    Oct 2024 ·Oct 2023

Questions count as repeated when their wording matches closely across papers. Numericals that depend on a figure are left out, since the figure changes from paper to paper.