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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 160 · 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 part of a microcontroller board shows the board is on? (a) the power LED (b) the USB port (c) the pins (d) the main chip
  2. 2.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
  3. 3.True or false: a microcontroller has no screen of its own. (a) False (b) True
  4. 4.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it starts again (d) it deletes itself
  5. 5.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  6. 6.🤖 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
  7. 7.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) the resistor (d) flash memory
  8. 8.🧭 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
  9. 9.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  10. 10.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) uploaded over USB (c) drawn with a pen (d) typed on the chip
  11. 11.True or false: a microcontroller runs one small program. (a) False (b) True
  12. 12.True or false: a washing machine usually has a microcontroller inside. (a) True (b) False
  13. 13.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
  14. 14.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
  15. 15.True or false: a microcontroller needs much more power. (a) False (b) True
  16. 16.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the reset button (c) the power LED (d) the voltage regulator
  17. 17.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) USB or a 9 V battery (c) a wall socket directly (d) bare mains wires
  18. 18.Which of these has no microcontroller inside? (a) a spinning top (b) a smart watch (c) a microwave oven (d) a toy robot
  19. 19.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
  20. 20.True or false: a microcontroller runs many apps at once. (a) True (b) False
  21. 21.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
  22. 22.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  23. 23.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a wind-up toy (d) a microwave oven
  24. 24.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  25. 25.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  26. 26.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  27. 27.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
  28. 28.Which job is done by the USB port? (a) keeps the voltage steady (b) restarts the program (c) brings power and code (d) runs the program
  29. 29.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
  30. 30.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  31. 31.Which job is done by the pins? (a) connect sensors and LEDs (b) keeps the voltage steady (c) runs the program (d) brings power and code
  32. 32.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the reset button (c) the main chip (d) the USB port
  33. 33.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  34. 34.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the pins (c) the reset button (d) the USB port
  35. 35.True or false: a laptop has no screen of its own. (a) True (b) False
  36. 36.Which of these usually has a microcontroller inside? (a) a toy robot (b) a candle (c) a plain wall switch (d) a spinning top
  37. 37.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  38. 38.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
  39. 39.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  40. 40.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller

Answer key

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

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