Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 496 · 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 TV remote (b) a bicycle bell (c) a spinning top (d) a hand pump
2. 2.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a spinning top (c) a hand pump (d) a digital alarm clock
3. 3.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
4. 4.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) a 230 V cable (c) a wall socket directly (d) bare mains wires
5. 5.Which job is done by the reset button? (a) brings power and code (b) connect sensors and LEDs (c) runs the program (d) restarts the program
6. 6.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) flash memory (c) the USB cable (d) the power LED
7. 7.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it starts again (d) it deletes itself
8. 8.True or false: a microcontroller runs one small program. (a) True (b) False
9. 9.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
10. 10.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
11. 11.Which job is done by the pins? (a) keeps the voltage steady (b) runs the program (c) shows the board is on (d) connect sensors and LEDs
12. 12.True or false: a laptop has no screen of its own. (a) True (b) False
13. 13.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
14. 14.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
15. 15.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
16. 16.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
17. 17.Which of these has no microcontroller inside? (a) a spinning top (b) a digital alarm clock (c) a digital thermometer (d) a washing machine
18. 18.True or false: a laptop has a built-in keyboard. (a) True (b) False
19. 19.🤖 Microcontroller or laptop: which one has no screen of its own? (a) microcontroller (b) laptop
20. 20.True or false: a smart watch has no microcontroller inside. (a) True (b) False
21. 21.True or false: a TV remote has no microcontroller inside. (a) False (b) True
22. 22.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
23. 23.🤖 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
24. 24.True or false: a plain wall switch usually has a microcontroller inside. (a) True (b) False
25. 25.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the reset button (c) the voltage regulator (d) the main chip
26. 26.Which job is done by the main chip? (a) shows the board is on (b) runs the program (c) brings power and code (d) restarts the program
27. 27.🧭 Which part of a microcontroller board shows the board is on? (a) the main chip (b) the voltage regulator (c) the USB port (d) the power LED
28. 28.True or false: a microcontroller uses very little power. (a) False (b) True
29. 29.True or false: a spinning top has no microcontroller inside. (a) True (b) False
30. 30.True or false: a plain wall switch has no microcontroller inside. (a) False (b) True
31. 31.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a plain wall switch (c) a smart watch (d) a spinning top
32. 32.True or false: a laptop runs one small program. (a) True (b) False
33. 33.🧭 Which part of a microcontroller board restarts the program? (a) the USB port (b) the reset button (c) the voltage regulator (d) the main chip
34. 34.🤖 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
35. 35.True or false: a candle usually has a microcontroller inside. (a) False (b) True
36. 36.Which of these has no microcontroller inside? (a) a washing machine (b) a plain wall switch (c) a microwave oven (d) a digital thermometer
37. 37.Which of these has no microcontroller inside? (a) a digital thermometer (b) a washing machine (c) a wind-up toy (d) a microwave oven
38. 38.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
39. 39.True or false: a laptop runs many apps at once. (a) True (b) False
40. 40.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False

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