Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 385 · 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 of these usually has a microcontroller inside? (a) a plain wall switch (b) a washing machine (c) a bicycle bell (d) a wind-up toy
2. 2.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
3. 3.🤖 Does a spinning top usually have a microcontroller inside? (a) No (b) Yes
4. 4.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the reset button (c) the pins (d) the main chip
5. 5.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the reset button (c) the pins (d) the main chip
6. 6.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
7. 7.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
8. 8.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a washing machine (c) a bicycle bell (d) a smart watch
9. 9.🤖 What is a microcontroller? (a) a type of battery (b) a computer on one chip (c) a kind of bulb (d) a big desktop computer
10. 10.True or false: a microcontroller runs one small program. (a) False (b) True
11. 11.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
12. 12.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the reset button (c) the power LED (d) the voltage regulator
13. 13.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) uploaded over USB (d) drawn with a pen
14. 14.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
15. 15.Which job is done by the power LED? (a) runs the program (b) shows the board is on (c) restarts the program (d) brings power and code
16. 16.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
17. 17.True or false: a microcontroller runs many apps at once. (a) True (b) False
18. 18.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
19. 19.Which job is done by the pins? (a) brings power and code (b) connect sensors and LEDs (c) shows the board is on (d) restarts the program
20. 20.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
21. 21.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a smart watch (d) a plain wall switch
22. 22.True or false: a candle usually has a microcontroller inside. (a) False (b) True
23. 23.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
24. 24.🤖 Which is a safe power source for a beginner microcontroller board? (a) bare mains wires (b) USB or a 9 V battery (c) a 230 V cable (d) a wall socket directly
25. 25.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
26. 26.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the resistor (c) flash memory (d) the USB cable
27. 27.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
28. 28.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
29. 29.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) the board breaks (d) it starts again
30. 30.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
31. 31.True or false: a laptop uses very little power. (a) True (b) False
32. 32.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
33. 33.Which of these has no microcontroller inside? (a) a digital thermometer (b) a smart watch (c) a TV remote (d) a candle
34. 34.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the reset button (b) the USB port (c) the main chip (d) the voltage regulator
35. 35.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a toy robot (c) a hand pump (d) a candle
36. 36.True or false: a microcontroller uses very little power. (a) True (b) False
37. 37.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
38. 38.True or false: a plain wall switch usually has a microcontroller inside. (a) False (b) True
39. 39.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
40. 40.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the main chip (c) the power LED (d) the USB port

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