← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 41 · 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.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  2. 2.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the power LED (c) the voltage regulator (d) the reset button
  3. 3.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  4. 4.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  5. 5.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a digital thermometer (c) a bicycle bell (d) a candle
  6. 6.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  7. 7.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the main chip (c) the power LED (d) the USB port
  8. 8.Which job is done by the pins? (a) connect sensors and LEDs (b) runs the program (c) restarts the program (d) shows the board is on
  9. 9.🤖 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
  10. 10.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  11. 11.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the power LED (c) the USB port (d) the pins
  12. 12.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a smart watch (d) a bicycle bell
  13. 13.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a wind-up toy (c) a hand pump (d) a washing machine
  14. 14.True or false: a laptop runs one small program. (a) True (b) False
  15. 15.True or false: a candle usually has a microcontroller inside. (a) False (b) True
  16. 16.Which of these has no microcontroller inside? (a) a washing machine (b) a wind-up toy (c) a TV remote (d) a digital alarm clock
  17. 17.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  18. 18.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  19. 19.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) bare mains wires (c) USB or a 9 V battery (d) a 230 V cable
  20. 20.True or false: a spinning top has no microcontroller inside. (a) True (b) False
  21. 21.🤖 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
  22. 22.True or false: a laptop runs many apps at once. (a) True (b) False
  23. 23.True or false: a microcontroller needs much more power. (a) False (b) True
  24. 24.True or false: a microcontroller has no screen of its own. (a) True (b) False
  25. 25.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  26. 26.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a candle (c) a TV remote (d) a plain wall switch
  27. 27.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  28. 28.Which job is done by the voltage regulator? (a) runs the program (b) keeps the voltage steady (c) restarts the program (d) shows the board is on
  29. 29.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  30. 30.Which job is done by the reset button? (a) shows the board is on (b) restarts the program (c) keeps the voltage steady (d) brings power and code
  31. 31.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  32. 32.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the reset button (c) the voltage regulator (d) the USB port
  33. 33.Which of these has no microcontroller inside? (a) a bicycle bell (b) a microwave oven (c) a toy robot (d) a smart watch
  34. 34.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  35. 35.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  36. 36.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  37. 37.True or false: a microcontroller runs many apps at once. (a) False (b) True
  38. 38.Which of these has no microcontroller inside? (a) a digital thermometer (b) a smart watch (c) a toy robot (d) a hand pump
  39. 39.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the power LED (c) the reset button (d) the pins
  40. 40.Which job is done by the main chip? (a) runs the program (b) keeps the voltage steady (c) connect sensors and LEDs (d) shows the board is on

Answer key

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

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