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Electronics Worksheet: What Is a Microcontroller

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

Answer key

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

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