← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 228 · 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 washing machine usually has a microcontroller inside. (a) True (b) False
  2. 2.True or false: a microcontroller runs one small program. (a) True (b) False
  3. 3.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  4. 4.Which of these has no microcontroller inside? (a) a digital thermometer (b) a washing machine (c) a microwave oven (d) a wind-up toy
  5. 5.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  6. 6.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  7. 7.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a smart watch (d) a spinning top
  8. 8.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  9. 9.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  10. 10.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  11. 11.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) uploaded over USB (c) drawn with a pen (d) typed on the chip
  12. 12.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the resistor (c) flash memory (d) the USB cable
  13. 13.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  14. 14.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it deletes itself (c) the board breaks (d) it starts again
  15. 15.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  16. 16.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  17. 17.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  18. 18.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the power LED (c) the USB port (d) the pins
  19. 19.True or false: a microcontroller runs many apps at once. (a) False (b) True
  20. 20.True or false: a toy robot has no microcontroller inside. (a) False (b) True
  21. 21.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  22. 22.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) brings power and code (c) keeps the voltage steady (d) restarts the program
  23. 23.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the main chip (c) the pins (d) the USB port
  24. 24.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital thermometer (c) a TV remote (d) a bicycle bell
  25. 25.Which job is done by the pins? (a) keeps the voltage steady (b) restarts the program (c) shows the board is on (d) connect sensors and LEDs
  26. 26.True or false: a laptop needs much more power. (a) False (b) True
  27. 27.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  28. 28.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  29. 29.Which job is done by the USB port? (a) brings power and code (b) restarts the program (c) keeps the voltage steady (d) runs the program
  30. 30.True or false: a laptop runs one small program. (a) True (b) False
  31. 31.True or false: a washing machine has no microcontroller inside. (a) True (b) False
  32. 32.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  33. 33.Which job is done by the main chip? (a) shows the board is on (b) brings power and code (c) connect sensors and LEDs (d) runs the program
  34. 34.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the pins (c) the power LED (d) the main chip
  35. 35.True or false: a laptop runs many apps at once. (a) True (b) False
  36. 36.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the USB port (c) the reset button (d) the main chip
  37. 37.Which of these has no microcontroller inside? (a) a spinning top (b) a digital thermometer (c) a digital alarm clock (d) a TV remote
  38. 38.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  39. 39.Which of these has no microcontroller inside? (a) a plain wall switch (b) a toy robot (c) a washing machine (d) a microwave oven
  40. 40.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No

Answer key

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

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