← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 287 · 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 job is done by the pins? (a) runs the program (b) shows the board is on (c) restarts the program (d) connect sensors and LEDs
  2. 2.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  3. 3.Which of these has no microcontroller inside? (a) a smart watch (b) a microwave oven (c) a washing machine (d) a candle
  4. 4.Which of these has no microcontroller inside? (a) a smart watch (b) a wind-up toy (c) a TV remote (d) a digital thermometer
  5. 5.True or false: a laptop runs many apps at once. (a) True (b) False
  6. 6.🤖 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
  7. 7.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  8. 8.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  9. 9.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  10. 10.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  11. 11.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
  12. 12.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  13. 13.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  14. 14.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  15. 15.Which job is done by the USB port? (a) connect sensors and LEDs (b) brings power and code (c) keeps the voltage steady (d) runs the program
  16. 16.True or false: a microcontroller runs one small program. (a) False (b) True
  17. 17.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  18. 18.True or false: a microcontroller needs much more power. (a) False (b) True
  19. 19.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  20. 20.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) uploaded over USB (d) sent by sound
  21. 21.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  22. 22.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  23. 23.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  24. 24.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the USB port (c) the voltage regulator (d) the main chip
  25. 25.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the USB port (c) the reset button (d) the pins
  26. 26.True or false: a microcontroller has no screen of its own. (a) False (b) True
  27. 27.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a kind of bulb (d) a computer on one chip
  28. 28.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  29. 29.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) flash memory (d) the resistor
  30. 30.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  31. 31.True or false: a laptop has no screen of its own. (a) True (b) False
  32. 32.Which of these has no microcontroller inside? (a) a bicycle bell (b) a smart watch (c) a microwave oven (d) a TV remote
  33. 33.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a wind-up toy (c) a bicycle bell (d) a spinning top
  34. 34.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the main chip (c) the USB port (d) the reset button
  35. 35.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the main chip (c) the pins (d) the reset button
  36. 36.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a bicycle bell (d) a digital alarm clock
  37. 37.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  38. 38.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  39. 39.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  40. 40.True or false: a microwave oven has no microcontroller inside. (a) False (b) True

Answer key

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

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