Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 117 · 40 questions

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.

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

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