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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 56 · 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.🤖 What is a microcontroller? (a) a kind of bulb (b) a computer on one chip (c) a type of battery (d) a big desktop computer
  2. 2.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
  3. 3.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  4. 4.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the resistor (c) the power LED (d) the USB cable
  5. 5.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
  6. 6.Which job is done by the pins? (a) restarts the program (b) brings power and code (c) connect sensors and LEDs (d) shows the board is on
  7. 7.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  8. 8.🤖 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
  9. 9.Which job is done by the USB port? (a) shows the board is on (b) restarts the program (c) runs the program (d) brings power and code
  10. 10.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  11. 11.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
  12. 12.True or false: a laptop uses very little power. (a) True (b) False
  13. 13.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the main chip (c) the reset button (d) the voltage regulator
  14. 14.True or false: a microcontroller has no screen of its own. (a) True (b) False
  15. 15.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
  16. 16.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) the board breaks (c) it deletes itself (d) it starts again
  17. 17.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the USB port (c) the voltage regulator (d) the main chip
  18. 18.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the reset button (c) the USB port (d) the voltage regulator
  19. 19.Which of these usually has a microcontroller inside? (a) a TV remote (b) a bicycle bell (c) a plain wall switch (d) a hand pump
  20. 20.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  21. 21.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a plain wall switch (d) a smart watch
  22. 22.True or false: a wind-up toy usually has a microcontroller inside. (a) False (b) True
  23. 23.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) drawn with a pen (d) uploaded over USB
  24. 24.True or false: a microcontroller needs much more power. (a) True (b) False
  25. 25.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
  26. 26.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
  27. 27.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  28. 28.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the power LED (c) the reset button (d) the main chip
  29. 29.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
  30. 30.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  31. 31.True or false: a smart watch has no microcontroller inside. (a) True (b) False
  32. 32.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the reset button (c) the pins (d) the voltage regulator
  33. 33.True or false: a microcontroller runs one small program. (a) False (b) True
  34. 34.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the power LED (c) the pins (d) the USB port
  35. 35.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
  36. 36.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
  37. 37.Which job is done by the main chip? (a) connect sensors and LEDs (b) restarts the program (c) runs the program (d) brings power and code
  38. 38.True or false: a microwave oven usually has a microcontroller inside. (a) False (b) True
  39. 39.Which of these usually has a microcontroller inside? (a) a washing machine (b) a spinning top (c) a bicycle bell (d) a candle
  40. 40.Which job is done by the power LED? (a) runs the program (b) restarts the program (c) shows the board is on (d) keeps the voltage steady

Answer key

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

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