← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 268 · 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.Which of these usually has a microcontroller inside? (a) a spinning top (b) a wind-up toy (c) a washing machine (d) a candle
  2. 2.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
  3. 3.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the power LED (c) the reset button (d) the main chip
  4. 4.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  5. 5.True or false: a laptop uses very little power. (a) False (b) True
  6. 6.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the reset button (c) the USB port (d) the pins
  7. 7.🤖 What is a microcontroller? (a) a type of battery (b) a computer on one chip (c) a big desktop computer (d) a kind of bulb
  8. 8.Which job is done by the USB port? (a) brings power and code (b) runs the program (c) restarts the program (d) connect sensors and LEDs
  9. 9.True or false: a laptop has a built-in keyboard. (a) False (b) True
  10. 10.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it deletes itself (c) the board breaks (d) it starts again
  11. 11.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
  12. 12.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  13. 13.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  14. 14.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  15. 15.Which job is done by the main chip? (a) brings power and code (b) connect sensors and LEDs (c) runs the program (d) keeps the voltage steady
  16. 16.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  17. 17.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) typed on the chip (c) uploaded over USB (d) sent by sound
  18. 18.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  19. 19.Which of these usually has a microcontroller inside? (a) a toy robot (b) a plain wall switch (c) a hand pump (d) a wind-up toy
  20. 20.True or false: a microcontroller needs much more power. (a) False (b) True
  21. 21.Which job is done by the voltage regulator? (a) brings power and code (b) shows the board is on (c) runs the program (d) keeps the voltage steady
  22. 22.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the power LED (c) the main chip (d) the voltage regulator
  23. 23.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  24. 24.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
  25. 25.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
  26. 26.Which job is done by the power LED? (a) restarts the program (b) keeps the voltage steady (c) brings power and code (d) shows the board is on
  27. 27.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  28. 28.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  29. 29.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a hand pump (d) a microwave oven
  30. 30.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  31. 31.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  32. 32.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) flash memory (d) the resistor
  33. 33.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  34. 34.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a digital thermometer (c) a hand pump (d) a spinning top
  35. 35.Which of these has no microcontroller inside? (a) a bicycle bell (b) a digital thermometer (c) a smart watch (d) a washing machine
  36. 36.True or false: a hand pump has no microcontroller inside. (a) True (b) False
  37. 37.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  38. 38.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a candle (c) a washing machine (d) a microwave oven
  39. 39.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the voltage regulator (c) the USB port (d) the main chip
  40. 40.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the USB port (c) the pins (d) the reset button

Answer key

  1. a washing machine
  2. True
  3. the main chip
  4. True
  5. False
  6. the pins
  7. a computer on one chip
  8. brings power and code
  9. True
  10. it starts again
  11. Yes
  12. laptop
  13. Yes
  14. microcontroller
  15. runs the program
  16. True
  17. uploaded over USB
  18. False
  19. a toy robot
  20. False
  21. keeps the voltage steady
  22. the power LED
  23. Yes
  24. No
  25. No
  26. shows the board is on
  27. Yes
  28. laptop
  29. a microwave oven
  30. False
  31. No
  32. flash memory
  33. True
  34. a digital thermometer
  35. a bicycle bell
  36. True
  37. No
  38. a candle
  39. the voltage regulator
  40. the reset button

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