← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 663 · 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 smart watch usually have a microcontroller inside? (a) Yes (b) No
  2. 2.True or false: a microcontroller needs much more power. (a) False (b) True
  3. 3.Which of these has no microcontroller inside? (a) a toy robot (b) a digital thermometer (c) a wind-up toy (d) a smart watch
  4. 4.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the main chip (c) the USB port (d) the reset button
  5. 5.Which job is done by the reset button? (a) runs the program (b) shows the board is on (c) restarts the program (d) connect sensors and LEDs
  6. 6.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the voltage regulator (c) the main chip (d) the pins
  7. 7.True or false: a laptop needs much more power. (a) True (b) False
  8. 8.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a wall socket directly (c) a 230 V cable (d) USB or a 9 V battery
  9. 9.🤖 What is a microcontroller? (a) a kind of bulb (b) a computer on one chip (c) a type of battery (d) a big desktop computer
  10. 10.Which job is done by the voltage regulator? (a) restarts the program (b) brings power and code (c) shows the board is on (d) keeps the voltage steady
  11. 11.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it deletes itself (d) it starts again
  12. 12.True or false: a microcontroller runs many apps at once. (a) True (b) False
  13. 13.Which of these usually has a microcontroller inside? (a) a washing machine (b) a spinning top (c) a plain wall switch (d) a hand pump
  14. 14.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
  15. 15.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  16. 16.True or false: a laptop has no screen of its own. (a) False (b) True
  17. 17.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  18. 18.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  19. 19.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  20. 20.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  21. 21.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  22. 22.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  23. 23.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  24. 24.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the resistor (c) flash memory (d) the USB cable
  25. 25.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  26. 26.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a smart watch (c) a TV remote (d) a plain wall switch
  27. 27.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  28. 28.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  29. 29.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  30. 30.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  31. 31.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  32. 32.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  33. 33.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) drawn with a pen (c) uploaded over USB (d) typed on the chip
  34. 34.Which of these has no microcontroller inside? (a) a smart watch (b) a spinning top (c) a washing machine (d) a microwave oven
  35. 35.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the reset button (c) the main chip (d) the power LED
  36. 36.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a washing machine (c) a hand pump (d) a microwave oven
  37. 37.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a wind-up toy (c) a toy robot (d) a candle
  38. 38.True or false: a laptop runs one small program. (a) True (b) False
  39. 39.True or false: a microcontroller has no screen of its own. (a) True (b) False
  40. 40.Which job is done by the pins? (a) connect sensors and LEDs (b) keeps the voltage steady (c) shows the board is on (d) brings power and code

Answer key

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

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