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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 208 · 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.

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

Answer key

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

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