← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

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

Answer key

  1. Yes
  2. a toy robot
  3. microcontroller
  4. True
  5. True
  6. True
  7. the power LED
  8. a TV remote
  9. False
  10. connect sensors and LEDs
  11. False
  12. False
  13. True
  14. False
  15. No
  16. flash memory
  17. True
  18. Yes
  19. False
  20. a spinning top
  21. False
  22. False
  23. a bicycle bell
  24. a candle
  25. it starts again
  26. the reset button
  27. restarts the program
  28. laptop
  29. False
  30. microcontroller
  31. True
  32. False
  33. the USB port
  34. False
  35. the main chip
  36. uploaded over USB
  37. laptop
  38. a plain wall switch
  39. True
  40. No

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