← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 537 · 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.Which of these has no microcontroller inside? (a) a wind-up toy (b) a microwave oven (c) a toy robot (d) a digital thermometer
  2. 2.Which of these has no microcontroller inside? (a) a digital thermometer (b) a toy robot (c) a TV remote (d) a plain wall switch
  3. 3.Which job is done by the reset button? (a) restarts the program (b) connect sensors and LEDs (c) runs the program (d) keeps the voltage steady
  4. 4.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the pins (c) the voltage regulator (d) the main chip
  5. 5.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  6. 6.True or false: a laptop runs one small program. (a) True (b) False
  7. 7.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  8. 8.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the main chip (c) the power LED (d) the USB port
  9. 9.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  10. 10.🤖 What is a microcontroller? (a) a big desktop computer (b) a computer on one chip (c) a type of battery (d) a kind of bulb
  11. 11.Which job is done by the power LED? (a) runs the program (b) shows the board is on (c) brings power and code (d) restarts the program
  12. 12.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  13. 13.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a hand pump (d) a digital alarm clock
  14. 14.Which job is done by the pins? (a) keeps the voltage steady (b) connect sensors and LEDs (c) runs the program (d) shows the board is on
  15. 15.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  16. 16.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  17. 17.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) uploaded over USB (c) sent by sound (d) typed on the chip
  18. 18.Which job is done by the USB port? (a) connect sensors and LEDs (b) brings power and code (c) restarts the program (d) runs the program
  19. 19.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the reset button (c) the voltage regulator (d) the main chip
  20. 20.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  21. 21.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  22. 22.True or false: a microcontroller runs one small program. (a) False (b) True
  23. 23.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  24. 24.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  25. 25.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  26. 26.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the pins (c) the reset button (d) the power LED
  27. 27.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  28. 28.Which of these has no microcontroller inside? (a) a smart watch (b) a bicycle bell (c) a TV remote (d) a toy robot
  29. 29.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  30. 30.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the power LED (c) the main chip (d) the voltage regulator
  31. 31.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) USB or a 9 V battery (d) a wall socket directly
  32. 32.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) shows the board is on (c) keeps the voltage steady (d) brings power and code
  33. 33.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  34. 34.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
  35. 35.True or false: a washing machine usually has a microcontroller inside. (a) False (b) True
  36. 36.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the main chip (c) the pins (d) the voltage regulator
  37. 37.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a microwave oven (c) a candle (d) a bicycle bell
  38. 38.True or false: a microcontroller has no screen of its own. (a) False (b) True
  39. 39.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  40. 40.🤖 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

Answer key

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

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