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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 701 · 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 spinning top (b) a toy robot (c) a candle (d) a plain wall switch
  2. 2.Which job is done by the USB port? (a) connect sensors and LEDs (b) restarts the program (c) runs the program (d) brings power and code
  3. 3.Which job is done by the reset button? (a) brings power and code (b) keeps the voltage steady (c) runs the program (d) restarts the program
  4. 4.True or false: a microcontroller uses very little power. (a) False (b) True
  5. 5.🧭 Which part of a microcontroller board brings power and code? (a) the power LED (b) the main chip (c) the USB port (d) the pins
  6. 6.Which job is done by the main chip? (a) restarts the program (b) runs the program (c) brings power and code (d) connect sensors and LEDs
  7. 7.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  8. 8.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a wall socket directly (c) a 230 V cable (d) bare mains wires
  9. 9.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  10. 10.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  11. 11.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) connect sensors and LEDs (c) runs the program (d) shows the board is on
  12. 12.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it starts again (c) it stops forever (d) it deletes itself
  13. 13.True or false: a laptop needs much more power. (a) True (b) False
  14. 14.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
  15. 15.Which job is done by the pins? (a) runs the program (b) brings power and code (c) restarts the program (d) connect sensors and LEDs
  16. 16.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the main chip (c) the pins (d) the voltage regulator
  17. 17.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
  18. 18.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the pins (c) the reset button (d) the main chip
  19. 19.🤖 What is a microcontroller? (a) a computer on one chip (b) a kind of bulb (c) a type of battery (d) a big desktop computer
  20. 20.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) flash memory (d) the resistor
  21. 21.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) uploaded over USB (c) sent by sound (d) drawn with a pen
  22. 22.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a microwave oven (d) a bicycle bell
  23. 23.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
  24. 24.True or false: a microcontroller needs much more power. (a) True (b) False
  25. 25.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  26. 26.True or false: a laptop runs one small program. (a) False (b) True
  27. 27.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  28. 28.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
  29. 29.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  30. 30.True or false: a microcontroller runs many apps at once. (a) True (b) False
  31. 31.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
  32. 32.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  33. 33.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  34. 34.True or false: a microcontroller runs one small program. (a) False (b) True
  35. 35.Which of these has no microcontroller inside? (a) a digital thermometer (b) a digital alarm clock (c) a bicycle bell (d) a TV remote
  36. 36.Which of these has no microcontroller inside? (a) a digital thermometer (b) a TV remote (c) a wind-up toy (d) a microwave oven
  37. 37.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  38. 38.Which job is done by the power LED? (a) keeps the voltage steady (b) brings power and code (c) shows the board is on (d) restarts the program
  39. 39.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
  40. 40.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes

Answer key

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

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