Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 330 · 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.True or false: a plain wall switch has no microcontroller inside. (a) True (b) False
2. 2.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
3. 3.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
4. 4.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
5. 5.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
6. 6.Which of these has no microcontroller inside? (a) a washing machine (b) a candle (c) a microwave oven (d) a toy robot
7. 7.🤖 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
8. 8.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
9. 9.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
10. 10.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the power LED (c) the USB cable (d) the resistor
11. 11.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the reset button (c) the USB port (d) the voltage regulator
12. 12.Which of these has no microcontroller inside? (a) a TV remote (b) a digital thermometer (c) a wind-up toy (d) a toy robot
13. 13.True or false: a microcontroller needs much more power. (a) False (b) True
14. 14.🤖 What is a microcontroller? (a) a computer on one chip (b) a type of battery (c) a kind of bulb (d) a big desktop computer
15. 15.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
16. 16.True or false: a laptop runs many apps at once. (a) True (b) False
17. 17.True or false: a candle has no microcontroller inside. (a) True (b) False
18. 18.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
19. 19.🧭 Which part of a microcontroller board shows the board is on? (a) the reset button (b) the main chip (c) the pins (d) the power LED
20. 20.🤖 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
21. 21.Which of these has no microcontroller inside? (a) a washing machine (b) a hand pump (c) a TV remote (d) a microwave oven
22. 22.Which of these usually has a microcontroller inside? (a) a hand pump (b) a wind-up toy (c) a candle (d) a washing machine
23. 23.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a hand pump (d) a smart watch
24. 24.True or false: a microcontroller runs many apps at once. (a) False (b) True
25. 25.Which job is done by the main chip? (a) connect sensors and LEDs (b) runs the program (c) brings power and code (d) shows the board is on
26. 26.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
27. 27.Which of these usually has a microcontroller inside? (a) a hand pump (b) a spinning top (c) a wind-up toy (d) a toy robot
28. 28.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) uploaded over USB (c) drawn with a pen (d) typed on the chip
29. 29.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a spinning top (c) a hand pump (d) a digital alarm clock
30. 30.🤖 Does a spinning top 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.Which job is done by the power LED? (a) keeps the voltage steady (b) restarts the program (c) shows the board is on (d) connect sensors and LEDs
33. 33.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the reset button (c) the pins (d) the power LED
34. 34.Which of these usually has a microcontroller inside? (a) a microwave oven (b) a bicycle bell (c) a plain wall switch (d) a spinning top
35. 35.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
36. 36.True or false: a toy robot has no microcontroller inside. (a) False (b) True
37. 37.Which of these has no microcontroller inside? (a) a bicycle bell (b) a digital thermometer (c) a washing machine (d) a digital alarm clock
38. 38.Which job is done by the USB port? (a) brings power and code (b) connect sensors and LEDs (c) runs the program (d) restarts the program
39. 39.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
40. 40.Which job is done by the pins? (a) keeps the voltage steady (b) restarts the program (c) brings power and code (d) connect sensors and LEDs

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