← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 651 · 40 questions
TalentJR

Remember (One chip, one job): Microcontroller = processor + memory + input/output pins on one chip. Board parts: USB port (power and code), pins, reset button, power LED, main chip, voltage regulator. Write the program → upload over USB → it runs its loop for ever; power by USB or a small battery.

NameDateTime takenScore ___ / 40
  1. 1.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  2. 2.🧭 Which part of a microcontroller board shows the board is on? (a) the USB port (b) the reset button (c) the voltage regulator (d) the power LED
  3. 3.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  4. 4.Which of these has no microcontroller inside? (a) a toy robot (b) a spinning top (c) a digital alarm clock (d) a washing machine
  5. 5.Which job is done by the reset button? (a) connect sensors and LEDs (b) shows the board is on (c) restarts the program (d) brings power and code
  6. 6.Which of these has no microcontroller inside? (a) a washing machine (b) a digital alarm clock (c) a hand pump (d) a toy robot
  7. 7.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  8. 8.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  9. 9.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  10. 10.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  11. 11.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) flash memory (c) the USB cable (d) the power LED
  12. 12.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  13. 13.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the reset button (c) the USB port (d) the power LED
  14. 14.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  15. 15.True or false: a microcontroller needs much more power. (a) False (b) True
  16. 16.Which job is done by the USB port? (a) keeps the voltage steady (b) runs the program (c) connect sensors and LEDs (d) brings power and code
  17. 17.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  18. 18.True or false: a microcontroller runs one small program. (a) True (b) False
  19. 19.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a smart watch (d) a wind-up toy
  20. 20.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  21. 21.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  22. 22.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the main chip (c) the pins (d) the power LED
  23. 23.Which of these has no microcontroller inside? (a) a wind-up toy (b) a TV remote (c) a microwave oven (d) a washing machine
  24. 24.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the main chip (c) the USB port (d) the voltage regulator
  25. 25.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the USB port (c) the main chip (d) the voltage regulator
  26. 26.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  27. 27.Which of these has no microcontroller inside? (a) a candle (b) a microwave oven (c) a toy robot (d) a smart watch
  28. 28.Which job is done by the power LED? (a) runs the program (b) brings power and code (c) shows the board is on (d) connect sensors and LEDs
  29. 29.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a digital thermometer (d) a spinning top
  30. 30.True or false: a microcontroller has no screen of its own. (a) False (b) True
  31. 31.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  32. 32.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  33. 33.True or false: a candle has no microcontroller inside. (a) True (b) False
  34. 34.Which job is done by the main chip? (a) brings power and code (b) shows the board is on (c) runs the program (d) restarts the program
  35. 35.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  36. 36.🧭 Which part of a microcontroller board restarts the program? (a) the main chip (b) the USB port (c) the power LED (d) the reset button
  37. 37.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  38. 38.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) a 230 V cable (c) bare mains wires (d) USB or a 9 V battery
  39. 39.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it starts again (d) it stops forever
  40. 40.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True

Answer key

  1. microcontroller
  2. the power LED
  3. Yes
  4. a spinning top
  5. restarts the program
  6. a hand pump
  7. Yes
  8. True
  9. False
  10. laptop
  11. flash memory
  12. False
  13. the USB port
  14. True
  15. False
  16. brings power and code
  17. No
  18. True
  19. a smart watch
  20. False
  21. False
  22. the pins
  23. a wind-up toy
  24. the voltage regulator
  25. the main chip
  26. microcontroller
  27. a candle
  28. shows the board is on
  29. a digital thermometer
  30. True
  31. microcontroller
  32. True
  33. True
  34. runs the program
  35. laptop
  36. the reset button
  37. False
  38. USB or a 9 V battery
  39. it starts again
  40. True

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids