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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 424 · 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 digital thermometer has no microcontroller inside. (a) False (b) True
  2. 2.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
  3. 3.True or false: a laptop runs many apps at once. (a) True (b) False
  4. 4.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  5. 5.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the main chip (c) the USB port (d) the power LED
  6. 6.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) uploaded over USB (c) typed on the chip (d) sent by sound
  7. 7.True or false: a microcontroller uses very little power. (a) False (b) True
  8. 8.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  9. 9.True or false: a microcontroller runs one small program. (a) False (b) True
  10. 10.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  11. 11.True or false: a laptop runs one small program. (a) True (b) False
  12. 12.Which job is done by the main chip? (a) shows the board is on (b) restarts the program (c) connect sensors and LEDs (d) runs the program
  13. 13.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the power LED (c) the main chip (d) the voltage regulator
  14. 14.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
  15. 15.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
  16. 16.True or false: a microcontroller runs many apps at once. (a) False (b) True
  17. 17.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the USB cable (c) the resistor (d) the power LED
  18. 18.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  19. 19.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  20. 20.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  21. 21.Which of these usually has a microcontroller inside? (a) a hand pump (b) a spinning top (c) a digital thermometer (d) a plain wall switch
  22. 22.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  23. 23.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  24. 24.Which job is done by the reset button? (a) restarts the program (b) brings power and code (c) shows the board is on (d) connect sensors and LEDs
  25. 25.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  26. 26.Which job is done by the pins? (a) restarts the program (b) shows the board is on (c) brings power and code (d) connect sensors and LEDs
  27. 27.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the reset button (c) the power LED (d) the pins
  28. 28.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) the board breaks (c) it starts again (d) it stops forever
  29. 29.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  30. 30.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  31. 31.Which job is done by the voltage regulator? (a) connect sensors and LEDs (b) runs the program (c) keeps the voltage steady (d) shows the board is on
  32. 32.True or false: a laptop needs much more power. (a) True (b) False
  33. 33.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a big desktop computer (d) a computer on one chip
  34. 34.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  35. 35.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  36. 36.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  37. 37.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  38. 38.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a toy robot (c) a spinning top (d) a plain wall switch
  39. 39.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  40. 40.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True

Answer key

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

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