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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 350 · 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.

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

Answer key

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

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