Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 238 · 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.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
2. 2.Which job is done by the USB port? (a) connect sensors and LEDs (b) restarts the program (c) brings power and code (d) shows the board is on
3. 3.True or false: a candle usually has a microcontroller inside. (a) True (b) False
4. 4.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
5. 5.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the pins (c) the USB port (d) the main chip
6. 6.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
7. 7.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
8. 8.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a hand pump (d) a digital thermometer
9. 9.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
10. 10.Which of these has no microcontroller inside? (a) a smart watch (b) a digital thermometer (c) a washing machine (d) a plain wall switch
11. 11.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the USB port (c) the pins (d) the power LED
12. 12.🤖 What is a microcontroller? (a) a type of battery (b) a big desktop computer (c) a kind of bulb (d) a computer on one chip
13. 13.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
14. 14.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
15. 15.Which of these has no microcontroller inside? (a) a smart watch (b) a wind-up toy (c) a TV remote (d) a digital alarm clock
16. 16.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
17. 17.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
18. 18.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the main chip (c) the reset button (d) the USB port
19. 19.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
20. 20.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
21. 21.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
22. 22.Which of these has no microcontroller inside? (a) a microwave oven (b) a spinning top (c) a toy robot (d) a washing machine
23. 23.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
24. 24.Which job is done by the voltage regulator? (a) restarts the program (b) keeps the voltage steady (c) runs the program (d) brings power and code
25. 25.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) USB or a 9 V battery (c) a 230 V cable (d) bare mains wires
26. 26.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) flash memory (c) the USB cable (d) the resistor
27. 27.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) sent by sound (c) uploaded over USB (d) typed on the chip
28. 28.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the voltage regulator (c) the pins (d) the USB port
29. 29.True or false: a laptop runs one small program. (a) True (b) False
30. 30.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the voltage regulator (c) the pins (d) the USB port
31. 31.Which of these has no microcontroller inside? (a) a smart watch (b) a washing machine (c) a TV remote (d) a bicycle bell
32. 32.Which of these usually has a microcontroller inside? (a) a candle (b) a spinning top (c) a hand pump (d) a toy robot
33. 33.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
34. 34.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a hand pump (c) a candle (d) a TV remote
35. 35.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
36. 36.True or false: a laptop uses very little power. (a) True (b) False
37. 37.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
38. 38.True or false: a microcontroller has a built-in keyboard. (a) True (b) False
39. 39.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
40. 40.True or false: a microcontroller runs one small program. (a) False (b) True

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