← What is a microcontroller? lesson New set →

Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 721 · 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.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
  2. 2.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  3. 3.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  4. 4.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
  5. 5.🤖 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
  6. 6.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
  7. 7.Which job is done by the USB port? (a) connect sensors and LEDs (b) runs the program (c) keeps the voltage steady (d) brings power and code
  8. 8.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
  9. 9.Which of these has no microcontroller inside? (a) a TV remote (b) a candle (c) a toy robot (d) a washing machine
  10. 10.Which job is done by the main chip? (a) restarts the program (b) brings power and code (c) runs the program (d) shows the board is on
  11. 11.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
  12. 12.True or false: a candle has no microcontroller inside. (a) True (b) False
  13. 13.Which of these has no microcontroller inside? (a) a spinning top (b) a digital alarm clock (c) a microwave oven (d) a toy robot
  14. 14.Which job is done by the power LED? (a) runs the program (b) brings power and code (c) shows the board is on (d) connect sensors and LEDs
  15. 15.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the pins (c) the voltage regulator (d) the USB port
  16. 16.True or false: a candle usually has a microcontroller inside. (a) True (b) False
  17. 17.Which of these has no microcontroller inside? (a) a washing machine (b) a wind-up toy (c) a smart watch (d) a TV remote
  18. 18.True or false: a microcontroller has no screen of its own. (a) True (b) False
  19. 19.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) flash memory (d) the resistor
  20. 20.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
  21. 21.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the reset button (c) the power LED (d) the main chip
  22. 22.Which job is done by the pins? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) shows the board is on
  23. 23.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) a 230 V cable (c) USB or a 9 V battery (d) bare mains wires
  24. 24.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
  25. 25.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
  26. 26.Which job is done by the voltage regulator? (a) keeps the voltage steady (b) shows the board is on (c) connect sensors and LEDs (d) runs the program
  27. 27.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) sent by sound (c) typed on the chip (d) drawn with a pen
  28. 28.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
  29. 29.Which of these usually has a microcontroller inside? (a) a spinning top (b) a bicycle bell (c) a microwave oven (d) a wind-up toy
  30. 30.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the pins (c) the voltage regulator (d) the power LED
  31. 31.True or false: a laptop has no screen of its own. (a) False (b) True
  32. 32.🤖 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
  33. 33.True or false: a hand pump has no microcontroller inside. (a) False (b) True
  34. 34.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a toy robot (c) a digital thermometer (d) a plain wall switch
  35. 35.Which job is done by the reset button? (a) keeps the voltage steady (b) connect sensors and LEDs (c) restarts the program (d) runs the program
  36. 36.Which of these usually has a microcontroller inside? (a) a digital thermometer (b) a spinning top (c) a wind-up toy (d) a candle
  37. 37.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
  38. 38.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a wind-up toy (d) a smart watch
  39. 39.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
  40. 40.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes

Answer key

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

Free electronics lessons, practice and worksheets at talentjr.in/electronics-for-kids