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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 559 · 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.True or false: a TV remote has no microcontroller inside. (a) True (b) False
  2. 2.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
  3. 3.Which of these has no microcontroller inside? (a) a smart watch (b) a digital alarm clock (c) a washing machine (d) a bicycle bell
  4. 4.🤖 What is a microcontroller? (a) a kind of bulb (b) a computer on one chip (c) a big desktop computer (d) a type of battery
  5. 5.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the reset button (b) the USB port (c) the voltage regulator (d) the pins
  6. 6.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the pins (c) the power LED (d) the main chip
  7. 7.True or false: a laptop needs much more power. (a) False (b) True
  8. 8.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  9. 9.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) it starts again (d) the board breaks
  10. 10.Which job is done by the main chip? (a) runs the program (b) connect sensors and LEDs (c) restarts the program (d) keeps the voltage steady
  11. 11.Which job is done by the pins? (a) runs the program (b) connect sensors and LEDs (c) brings power and code (d) restarts the program
  12. 12.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the main chip (c) the voltage regulator (d) the pins
  13. 13.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
  14. 14.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  15. 15.Which job is done by the reset button? (a) restarts the program (b) shows the board is on (c) brings power and code (d) runs the program
  16. 16.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  17. 17.Which of these has no microcontroller inside? (a) a hand pump (b) a TV remote (c) a digital alarm clock (d) a microwave oven
  18. 18.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  19. 19.🤖 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
  20. 20.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) bare mains wires (c) USB or a 9 V battery (d) a wall socket directly
  21. 21.True or false: a laptop runs one small program. (a) True (b) False
  22. 22.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  23. 23.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
  24. 24.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the USB port (c) the pins (d) the reset button
  25. 25.True or false: a laptop has a built-in keyboard. (a) True (b) False
  26. 26.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  27. 27.Which job is done by the USB port? (a) restarts the program (b) connect sensors and LEDs (c) brings power and code (d) keeps the voltage steady
  28. 28.Which job is done by the voltage regulator? (a) runs the program (b) keeps the voltage steady (c) restarts the program (d) connect sensors and LEDs
  29. 29.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
  30. 30.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a hand pump (d) a digital alarm clock
  31. 31.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a washing machine (c) a bicycle bell (d) a candle
  32. 32.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  33. 33.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  34. 34.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a TV remote (d) a bicycle bell
  35. 35.True or false: a laptop has no screen of its own. (a) False (b) True
  36. 36.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  37. 37.True or false: a microcontroller needs much more power. (a) True (b) False
  38. 38.🤖 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
  39. 39.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  40. 40.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop

Answer key

  1. False
  2. Yes
  3. a bicycle bell
  4. a computer on one chip
  5. the pins
  6. the main chip
  7. True
  8. Yes
  9. it starts again
  10. runs the program
  11. connect sensors and LEDs
  12. the voltage regulator
  13. False
  14. Yes
  15. restarts the program
  16. Yes
  17. a hand pump
  18. laptop
  19. uploaded over USB
  20. USB or a 9 V battery
  21. False
  22. laptop
  23. True
  24. the power LED
  25. True
  26. Yes
  27. brings power and code
  28. keeps the voltage steady
  29. True
  30. a digital alarm clock
  31. a washing machine
  32. Yes
  33. No
  34. a TV remote
  35. False
  36. No
  37. False
  38. flash memory
  39. microcontroller
  40. laptop

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