← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 515 · 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 many apps at once. (a) False (b) True
  2. 2.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
  3. 3.🤖 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
  4. 4.Which job is done by the voltage regulator? (a) restarts the program (b) connect sensors and LEDs (c) keeps the voltage steady (d) shows the board is on
  5. 5.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  6. 6.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  7. 7.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  8. 8.Which of these has no microcontroller inside? (a) a plain wall switch (b) a microwave oven (c) a washing machine (d) a digital thermometer
  9. 9.Which job is done by the main chip? (a) restarts the program (b) brings power and code (c) runs the program (d) shows the board is on
  10. 10.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  11. 11.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  12. 12.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a spinning top (d) a toy robot
  13. 13.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the power LED (c) the USB cable (d) flash memory
  14. 14.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the USB port (c) the main chip (d) the power LED
  15. 15.True or false: a washing machine has no microcontroller inside. (a) False (b) True
  16. 16.True or false: a microcontroller uses very little power. (a) True (b) False
  17. 17.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
  18. 18.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  19. 19.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) USB or a 9 V battery (c) bare mains wires (d) a 230 V cable
  20. 20.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
  21. 21.True or false: a candle has no microcontroller inside. (a) False (b) True
  22. 22.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  23. 23.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) typed on the chip (c) drawn with a pen (d) uploaded over USB
  24. 24.Which job is done by the power LED? (a) keeps the voltage steady (b) restarts the program (c) shows the board is on (d) connect sensors and LEDs
  25. 25.Which of these has no microcontroller inside? (a) a washing machine (b) a digital thermometer (c) a wind-up toy (d) a smart watch
  26. 26.🤖 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
  27. 27.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  28. 28.Which of these usually has a microcontroller inside? (a) a candle (b) a wind-up toy (c) a smart watch (d) a bicycle bell
  29. 29.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the power LED (c) the voltage regulator (d) the main chip
  30. 30.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  31. 31.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  32. 32.True or false: a laptop has no screen of its own. (a) True (b) False
  33. 33.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the voltage regulator (c) the power LED (d) the main chip
  34. 34.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a digital alarm clock (d) a wind-up toy
  35. 35.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
  36. 36.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  37. 37.True or false: a microcontroller runs many apps at once. (a) False (b) True
  38. 38.True or false: a laptop needs much more power. (a) False (b) True
  39. 39.True or false: a smart watch has no microcontroller inside. (a) False (b) True
  40. 40.True or false: a spinning top has no microcontroller inside. (a) True (b) False

Answer key

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

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