← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 639 · 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 a built-in keyboard? (a) laptop (b) microcontroller
  2. 2.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the pins (c) the reset button (d) the USB port
  3. 3.Which job is done by the main chip? (a) brings power and code (b) shows the board is on (c) keeps the voltage steady (d) runs the program
  4. 4.True or false: a laptop has no screen of its own. (a) False (b) True
  5. 5.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  6. 6.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a wall socket directly (c) a 230 V cable (d) bare mains wires
  7. 7.Which of these has no microcontroller inside? (a) a bicycle bell (b) a digital alarm clock (c) a microwave oven (d) a toy robot
  8. 8.Which of these has no microcontroller inside? (a) a washing machine (b) a microwave oven (c) a candle (d) a smart watch
  9. 9.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  10. 10.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  11. 11.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  12. 12.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  13. 13.True or false: a laptop runs one small program. (a) True (b) False
  14. 14.Which of these has no microcontroller inside? (a) a digital thermometer (b) a microwave oven (c) a digital alarm clock (d) a wind-up toy
  15. 15.Which job is done by the pins? (a) restarts the program (b) connect sensors and LEDs (c) brings power and code (d) runs the program
  16. 16.True or false: a microcontroller needs much more power. (a) True (b) False
  17. 17.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  18. 18.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  19. 19.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  20. 20.🤖 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
  21. 21.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the pins (c) the reset button (d) the voltage regulator
  22. 22.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  23. 23.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
  24. 24.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  25. 25.Which job is done by the power LED? (a) keeps the voltage steady (b) restarts the program (c) connect sensors and LEDs (d) shows the board is on
  26. 26.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it stops forever (d) it starts again
  27. 27.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the main chip (c) the reset button (d) the USB port
  28. 28.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  29. 29.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  30. 30.Which of these has no microcontroller inside? (a) a spinning top (b) a smart watch (c) a microwave oven (d) a TV remote
  31. 31.Which of these usually has a microcontroller inside? (a) a smart watch (b) a plain wall switch (c) a candle (d) a wind-up toy
  32. 32.Which job is done by the voltage regulator? (a) restarts the program (b) keeps the voltage steady (c) runs the program (d) shows the board is on
  33. 33.True or false: a microcontroller runs many apps at once. (a) False (b) True
  34. 34.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  35. 35.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  36. 36.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a hand pump (c) a bicycle bell (d) a washing machine
  37. 37.Which of these has no microcontroller inside? (a) a digital thermometer (b) a TV remote (c) a microwave oven (d) a hand pump
  38. 38.True or false: a microcontroller uses very little power. (a) False (b) True
  39. 39.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the USB port (c) the main chip (d) the pins
  40. 40.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop

Answer key

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

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