Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 620 · 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 part of a microcontroller board shows the board is on? (a) the reset button (b) the voltage regulator (c) the main chip (d) the power LED
2. 2.Which job is done by the pins? (a) connect sensors and LEDs (b) shows the board is on (c) restarts the program (d) runs the program
3. 3.True or false: a TV remote has no microcontroller inside. (a) False (b) True
4. 4.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
5. 5.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
6. 6.Which of these usually has a microcontroller inside? (a) a hand pump (b) a candle (c) a microwave oven (d) a wind-up toy
7. 7.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the main chip (c) the reset button (d) the voltage regulator
8. 8.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) USB or a 9 V battery (c) bare mains wires (d) a 230 V cable
9. 9.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
10. 10.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the pins (b) the reset button (c) the voltage regulator (d) the main chip
11. 11.True or false: a laptop uses very little power. (a) False (b) True
12. 12.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
13. 13.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
14. 14.True or false: a laptop has a built-in keyboard. (a) False (b) True
15. 15.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
16. 16.Which of these usually has a microcontroller inside? (a) a washing machine (b) a hand pump (c) a candle (d) a wind-up toy
17. 17.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
18. 18.True or false: a microcontroller has no screen of its own. (a) False (b) True
19. 19.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a bicycle bell (c) a plain wall switch (d) a toy robot
20. 20.🤖 When the main loop of a microcontroller program ends, what happens? (a) it starts again (b) it deletes itself (c) it stops forever (d) the board breaks
21. 21.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
22. 22.Which job is done by the reset button? (a) connect sensors and LEDs (b) brings power and code (c) shows the board is on (d) restarts the program
23. 23.True or false: a smart watch has no microcontroller inside. (a) False (b) True
24. 24.🧭 Which part of a microcontroller board runs the program? (a) the voltage regulator (b) the pins (c) the power LED (d) the main chip
25. 25.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
26. 26.🤖 What is a microcontroller? (a) a kind of bulb (b) a type of battery (c) a computer on one chip (d) a big desktop computer
27. 27.Which job is done by the power LED? (a) restarts the program (b) connect sensors and LEDs (c) shows the board is on (d) brings power and code
28. 28.True or false: a microcontroller runs many apps at once. (a) True (b) False
29. 29.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a smart watch (d) a hand pump
30. 30.Which of these usually has a microcontroller inside? (a) a candle (b) a digital thermometer (c) a bicycle bell (d) a hand pump
31. 31.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
32. 32.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) uploaded over USB (c) drawn with a pen (d) sent by sound
33. 33.True or false: a wind-up toy has no microcontroller inside. (a) False (b) True
34. 34.Which of these has no microcontroller inside? (a) a bicycle bell (b) a digital alarm clock (c) a smart watch (d) a microwave oven
35. 35.Which job is done by the USB port? (a) connect sensors and LEDs (b) brings power and code (c) runs the program (d) restarts the program
36. 36.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
37. 37.Which of these has no microcontroller inside? (a) a candle (b) a TV remote (c) a smart watch (d) a microwave oven
38. 38.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) flash memory (c) the resistor (d) the USB cable
39. 39.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
40. 40.Which of these usually has a microcontroller inside? (a) a candle (b) a digital alarm clock (c) a plain wall switch (d) a hand pump

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