← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 415 · 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 uses very little power. (a) True (b) False
  2. 2.True or false: a laptop runs one small program. (a) False (b) True
  3. 3.Which job is done by the power LED? (a) connect sensors and LEDs (b) shows the board is on (c) keeps the voltage steady (d) restarts the program
  4. 4.🤖 What is a microcontroller? (a) a computer on one chip (b) a kind of bulb (c) a type of battery (d) a big desktop computer
  5. 5.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  6. 6.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the voltage regulator (c) the power LED (d) the reset button
  7. 7.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  8. 8.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  9. 9.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  10. 10.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the power LED (c) the voltage regulator (d) the pins
  11. 11.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  12. 12.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  13. 13.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the pins (c) the voltage regulator (d) the power LED
  14. 14.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
  15. 15.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  16. 16.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  17. 17.Which of these has no microcontroller inside? (a) a washing machine (b) a smart watch (c) a hand pump (d) a digital thermometer
  18. 18.🤖 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
  19. 19.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  20. 20.Which of these has no microcontroller inside? (a) a spinning top (b) a microwave oven (c) a digital alarm clock (d) a digital thermometer
  21. 21.True or false: a laptop has no screen of its own. (a) True (b) False
  22. 22.True or false: a laptop needs much more power. (a) False (b) True
  23. 23.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  24. 24.Which job is done by the reset button? (a) runs the program (b) connect sensors and LEDs (c) restarts the program (d) shows the board is on
  25. 25.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  26. 26.True or false: a microcontroller runs many apps at once. (a) False (b) True
  27. 27.Which job is done by the pins? (a) restarts the program (b) brings power and code (c) runs the program (d) connect sensors and LEDs
  28. 28.Which job is done by the main chip? (a) keeps the voltage steady (b) brings power and code (c) runs the program (d) restarts the program
  29. 29.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the USB port (c) the pins (d) the main chip
  30. 30.Which of these has no microcontroller inside? (a) a TV remote (b) a plain wall switch (c) a washing machine (d) a toy robot
  31. 31.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a candle (c) a bicycle bell (d) a spinning top
  32. 32.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
  33. 33.True or false: a hand pump usually has a microcontroller inside. (a) False (b) True
  34. 34.True or false: a microcontroller uses very little power. (a) True (b) False
  35. 35.True or false: a laptop has a built-in keyboard. (a) True (b) False
  36. 36.Which job is done by the USB port? (a) runs the program (b) connect sensors and LEDs (c) brings power and code (d) shows the board is on
  37. 37.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  38. 38.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) the board breaks (c) it starts again (d) it deletes itself
  39. 39.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) USB or a 9 V battery (c) a wall socket directly (d) a 230 V cable
  40. 40.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a bicycle bell (c) a hand pump (d) a digital alarm clock

Answer key

  1. False
  2. False
  3. shows the board is on
  4. a computer on one chip
  5. No
  6. the pins
  7. laptop
  8. No
  9. True
  10. the USB port
  11. False
  12. No
  13. the voltage regulator
  14. True
  15. microcontroller
  16. laptop
  17. a hand pump
  18. uploaded over USB
  19. Yes
  20. a spinning top
  21. False
  22. True
  23. microcontroller
  24. restarts the program
  25. Yes
  26. False
  27. connect sensors and LEDs
  28. runs the program
  29. the main chip
  30. a plain wall switch
  31. a digital thermometer
  32. True
  33. False
  34. True
  35. True
  36. brings power and code
  37. Yes
  38. it starts again
  39. USB or a 9 V battery
  40. a digital alarm clock

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