Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 422 · 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 is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) a wall socket directly (c) USB or a 9 V battery (d) a 230 V cable
2. 2.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) drawn with a pen (c) uploaded over USB (d) sent by sound
3. 3.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the power LED (c) the pins (d) the voltage regulator
4. 4.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the voltage regulator (c) the reset button (d) the main chip
5. 5.Which job is done by the USB port? (a) brings power and code (b) shows the board is on (c) connect sensors and LEDs (d) restarts the program
6. 6.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the resistor (c) flash memory (d) the power LED
7. 7.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
8. 8.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
9. 9.🤖 What is a microcontroller? (a) a big desktop computer (b) a type of battery (c) a computer on one chip (d) a kind of bulb
10. 10.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
11. 11.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
12. 12.True or false: a toy robot has no microcontroller inside. (a) True (b) False
13. 13.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
14. 14.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
15. 15.True or false: a candle usually has a microcontroller inside. (a) True (b) False
16. 16.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
17. 17.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a washing machine (c) a spinning top (d) a hand pump
18. 18.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
19. 19.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a plain wall switch (c) a hand pump (d) a wind-up toy
20. 20.Which of these has no microcontroller inside? (a) a microwave oven (b) a smart watch (c) a wind-up toy (d) a TV remote
21. 21.Which of these usually has a microcontroller inside? (a) a candle (b) a digital thermometer (c) a wind-up toy (d) a plain wall switch
22. 22.True or false: a spinning top has no microcontroller inside. (a) False (b) True
23. 23.🧭 Which part of a microcontroller board brings power and code? (a) the reset button (b) the voltage regulator (c) the pins (d) the USB port
24. 24.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
25. 25.Which job is done by the voltage regulator? (a) brings power and code (b) keeps the voltage steady (c) shows the board is on (d) connect sensors and LEDs
26. 26.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
27. 27.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
28. 28.Which job is done by the reset button? (a) shows the board is on (b) restarts the program (c) runs the program (d) brings power and code
29. 29.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
30. 30.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
31. 31.True or false: a microcontroller runs one small program. (a) True (b) False
32. 32.True or false: a candle has no microcontroller inside. (a) False (b) True
33. 33.True or false: a wind-up toy has no microcontroller inside. (a) True (b) False
34. 34.Which of these usually has a microcontroller inside? (a) a hand pump (b) a bicycle bell (c) a wind-up toy (d) a smart watch
35. 35.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the voltage regulator (c) the reset button (d) the USB port
36. 36.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the power LED (c) the voltage regulator (d) the main chip
37. 37.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
38. 38.Which job is done by the main chip? (a) restarts the program (b) runs the program (c) connect sensors and LEDs (d) brings power and code
39. 39.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
40. 40.True or false: a washing machine has no microcontroller inside. (a) True (b) False

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