← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 77 · 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 microcontroller has a built-in keyboard. (a) False (b) True
  2. 2.True or false: a laptop runs many apps at once. (a) True (b) False
  3. 3.True or false: a microcontroller uses very little power. (a) False (b) True
  4. 4.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  5. 5.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the power LED (c) the main chip (d) the USB port
  6. 6.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the voltage regulator (b) the USB port (c) the power LED (d) the reset button
  7. 7.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  8. 8.True or false: a microcontroller runs one small program. (a) True (b) False
  9. 9.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the main chip (b) the power LED (c) the voltage regulator (d) the pins
  10. 10.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a bicycle bell (c) a candle (d) a digital alarm clock
  11. 11.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) a wall socket directly (d) USB or a 9 V battery
  12. 12.Which of these has no microcontroller inside? (a) a washing machine (b) a smart watch (c) a TV remote (d) a spinning top
  13. 13.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the USB cable (c) flash memory (d) the power LED
  14. 14.Which of these has no microcontroller inside? (a) a washing machine (b) a toy robot (c) a wind-up toy (d) a digital alarm clock
  15. 15.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  16. 16.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  17. 17.Which job is done by the power LED? (a) shows the board is on (b) keeps the voltage steady (c) runs the program (d) connect sensors and LEDs
  18. 18.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  19. 19.🤖 What is a microcontroller? (a) a kind of bulb (b) a big desktop computer (c) a type of battery (d) a computer on one chip
  20. 20.Which job is done by the USB port? (a) runs the program (b) keeps the voltage steady (c) connect sensors and LEDs (d) brings power and code
  21. 21.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  22. 22.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  23. 23.True or false: a laptop needs much more power. (a) False (b) True
  24. 24.Which of these usually has a microcontroller inside? (a) a TV remote (b) a bicycle bell (c) a spinning top (d) a wind-up toy
  25. 25.Which of these has no microcontroller inside? (a) a TV remote (b) a hand pump (c) a smart watch (d) a digital thermometer
  26. 26.Which job is done by the voltage regulator? (a) brings power and code (b) keeps the voltage steady (c) restarts the program (d) shows the board is on
  27. 27.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  28. 28.Which of these usually has a microcontroller inside? (a) a spinning top (b) a smart watch (c) a hand pump (d) a plain wall switch
  29. 29.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  30. 30.True or false: a microcontroller has no screen of its own. (a) False (b) True
  31. 31.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  32. 32.True or false: a laptop uses very little power. (a) False (b) True
  33. 33.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) the board breaks (c) it stops forever (d) it deletes itself
  34. 34.Which of these has no microcontroller inside? (a) a washing machine (b) a toy robot (c) a smart watch (d) a plain wall switch
  35. 35.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the main chip (c) the USB port (d) the power LED
  36. 36.Which of these has no microcontroller inside? (a) a bicycle bell (b) a TV remote (c) a washing machine (d) a toy robot
  37. 37.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  38. 38.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a washing machine (d) a plain wall switch
  39. 39.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  40. 40.Which job is done by the pins? (a) shows the board is on (b) runs the program (c) keeps the voltage steady (d) connect sensors and LEDs

Answer key

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

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