← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 705 · 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 needs much more power. (a) False (b) True
  2. 2.True or false: a microcontroller runs one small program. (a) True (b) False
  3. 3.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  4. 4.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  5. 5.True or false: a microcontroller uses very little power. (a) False (b) True
  6. 6.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) flash memory (c) the resistor (d) the power LED
  7. 7.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  8. 8.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) drawn with a pen (d) uploaded over USB
  9. 9.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  10. 10.Which job is done by the USB port? (a) connect sensors and LEDs (b) restarts the program (c) keeps the voltage steady (d) brings power and code
  11. 11.Which job is done by the main chip? (a) connect sensors and LEDs (b) shows the board is on (c) runs the program (d) keeps the voltage steady
  12. 12.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  13. 13.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  14. 14.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  15. 15.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  16. 16.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the USB port (c) the voltage regulator (d) the main chip
  17. 17.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) the board breaks (c) it deletes itself (d) it stops forever
  18. 18.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  19. 19.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the voltage regulator (c) the USB port (d) the main chip
  20. 20.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a digital alarm clock (c) a candle (d) a spinning top
  21. 21.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  22. 22.Which job is done by the reset button? (a) keeps the voltage steady (b) shows the board is on (c) runs the program (d) restarts the program
  23. 23.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  24. 24.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the pins (c) the voltage regulator (d) the USB port
  25. 25.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  26. 26.Which of these usually has a microcontroller inside? (a) a hand pump (b) a TV remote (c) a spinning top (d) a plain wall switch
  27. 27.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  28. 28.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a wind-up toy (d) a microwave oven
  29. 29.Which job is done by the pins? (a) connect sensors and LEDs (b) restarts the program (c) runs the program (d) shows the board is on
  30. 30.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  31. 31.True or false: a laptop uses very little power. (a) True (b) False
  32. 32.True or false: a laptop has no screen of its own. (a) False (b) True
  33. 33.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a toy robot (d) a bicycle bell
  34. 34.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  35. 35.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the power LED (c) the voltage regulator (d) the pins
  36. 36.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the reset button (c) the pins (d) the voltage regulator
  37. 37.True or false: a microcontroller runs many apps at once. (a) True (b) False
  38. 38.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a computer on one chip (d) a type of battery
  39. 39.True or false: a laptop needs much more power. (a) True (b) False
  40. 40.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) USB or a 9 V battery (c) bare mains wires (d) a wall socket directly

Answer key

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

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