← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 579 · 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.True or false: a microcontroller uses very little power. (a) False (b) True
  2. 2.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  3. 3.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) drawn with a pen (d) uploaded over USB
  4. 4.Which of these has no microcontroller inside? (a) a smart watch (b) a washing machine (c) a toy robot (d) a wind-up toy
  5. 5.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a plain wall switch (c) a digital alarm clock (d) a candle
  6. 6.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a candle (d) a TV remote
  7. 7.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  8. 8.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  9. 9.True or false: a microcontroller runs many apps at once. (a) True (b) False
  10. 10.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  11. 11.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  12. 12.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  13. 13.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  14. 14.Which job is done by the USB port? (a) restarts the program (b) shows the board is on (c) brings power and code (d) keeps the voltage steady
  15. 15.True or false: a microcontroller has no screen of its own. (a) True (b) False
  16. 16.True or false: a microcontroller runs one small program. (a) True (b) False
  17. 17.Which of these usually has a microcontroller inside? (a) a washing machine (b) a wind-up toy (c) a plain wall switch (d) a bicycle bell
  18. 18.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  19. 19.🤖 What is a microcontroller? (a) a kind of bulb (b) a big desktop computer (c) a type of battery (d) a computer on one chip
  20. 20.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the reset button (c) the voltage regulator (d) the main chip
  21. 21.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the power LED (c) the USB port (d) the reset button
  22. 22.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the voltage regulator (c) the reset button (d) the power LED
  23. 23.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  24. 24.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  25. 25.True or false: a laptop uses very little power. (a) False (b) True
  26. 26.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  27. 27.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  28. 28.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  29. 29.Which job is done by the power LED? (a) connect sensors and LEDs (b) shows the board is on (c) keeps the voltage steady (d) runs the program
  30. 30.Which job is done by the voltage regulator? (a) shows the board is on (b) runs the program (c) connect sensors and LEDs (d) keeps the voltage steady
  31. 31.Which of these usually has a microcontroller inside? (a) a toy robot (b) a wind-up toy (c) a hand pump (d) a spinning top
  32. 32.Which job is done by the pins? (a) shows the board is on (b) keeps the voltage steady (c) restarts the program (d) connect sensors and LEDs
  33. 33.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  34. 34.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  35. 35.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  36. 36.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the pins (c) the USB port (d) the voltage regulator
  37. 37.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  38. 38.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) the board breaks (c) it deletes itself (d) it stops forever
  39. 39.True or false: a laptop runs one small program. (a) True (b) False
  40. 40.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False

Answer key

  1. True
  2. False
  3. uploaded over USB
  4. a wind-up toy
  5. a digital alarm clock
  6. a TV remote
  7. Yes
  8. microcontroller
  9. False
  10. False
  11. Yes
  12. laptop
  13. No
  14. brings power and code
  15. True
  16. True
  17. a washing machine
  18. Yes
  19. a computer on one chip
  20. the main chip
  21. the USB port
  22. the reset button
  23. Yes
  24. True
  25. False
  26. True
  27. laptop
  28. False
  29. shows the board is on
  30. keeps the voltage steady
  31. a toy robot
  32. connect sensors and LEDs
  33. Yes
  34. No
  35. True
  36. the pins
  37. True
  38. it starts again
  39. False
  40. False

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