← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 634 · 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 laptop runs one small program. (a) True (b) False
  2. 2.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  3. 3.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  4. 4.Which job is done by the pins? (a) brings power and code (b) runs the program (c) connect sensors and LEDs (d) shows the board is on
  5. 5.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) the resistor (d) flash memory
  6. 6.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the USB port (c) the power LED (d) the main chip
  7. 7.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  8. 8.Which job is done by the voltage regulator? (a) runs the program (b) shows the board is on (c) keeps the voltage steady (d) restarts the program
  9. 9.Which job is done by the power LED? (a) connect sensors and LEDs (b) brings power and code (c) shows the board is on (d) keeps the voltage steady
  10. 10.Which job is done by the USB port? (a) keeps the voltage steady (b) brings power and code (c) shows the board is on (d) runs the program
  11. 11.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a digital alarm clock (c) a candle (d) a wind-up toy
  12. 12.Which of these usually has a microcontroller inside? (a) a spinning top (b) a microwave oven (c) a bicycle bell (d) a plain wall switch
  13. 13.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  14. 14.True or false: a laptop has a built-in keyboard. (a) False (b) True
  15. 15.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  16. 16.Which job is done by the main chip? (a) shows the board is on (b) runs the program (c) brings power and code (d) restarts the program
  17. 17.Which of these has no microcontroller inside? (a) a spinning top (b) a TV remote (c) a washing machine (d) a microwave oven
  18. 18.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the reset button (c) the voltage regulator (d) the USB port
  19. 19.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  20. 20.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  21. 21.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  22. 22.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  23. 23.🤖 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
  24. 24.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the USB port (c) the reset button (d) the pins
  25. 25.Which job is done by the reset button? (a) shows the board is on (b) runs the program (c) restarts the program (d) brings power and code
  26. 26.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it starts again (c) it deletes itself (d) the board breaks
  27. 27.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  28. 28.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  29. 29.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a digital thermometer (c) a wind-up toy (d) a TV remote
  30. 30.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a wind-up toy (d) a smart watch
  31. 31.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
  32. 32.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  33. 33.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  34. 34.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  35. 35.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the power LED (c) the USB port (d) the main chip
  36. 36.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  37. 37.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  38. 38.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  39. 39.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  40. 40.🤖 What is a microcontroller? (a) a big desktop computer (b) a computer on one chip (c) a kind of bulb (d) a type of battery

Answer key

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

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