Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 499 · 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 hand pump usually have a microcontroller inside? (a) No (b) Yes
2. 2.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a microwave oven (d) a wind-up toy
3. 3.True or false: a spinning top usually has a microcontroller inside. (a) False (b) True
4. 4.Which job is done by the USB port? (a) connect sensors and LEDs (b) keeps the voltage steady (c) runs the program (d) brings power and code
5. 5.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the resistor (c) the power LED (d) the USB cable
6. 6.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the USB port (c) the reset button (d) the voltage regulator
7. 7.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the power LED (c) the USB port (d) the voltage regulator
8. 8.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) it starts again (d) the board breaks
9. 9.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) a 230 V cable (c) bare mains wires (d) USB or a 9 V battery
10. 10.True or false: a microcontroller runs one small program. (a) True (b) False
11. 11.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) Yes (b) No
12. 12.🤖 Does a washing machine usually have a microcontroller inside? (a) Yes (b) No
13. 13.True or false: a washing machine has no microcontroller inside. (a) True (b) False
14. 14.True or false: a candle usually has a microcontroller inside. (a) True (b) False
15. 15.🤖 What is a microcontroller? (a) a big desktop computer (b) a computer on one chip (c) a type of battery (d) a kind of bulb
16. 16.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
17. 17.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a hand pump (c) a washing machine (d) a candle
18. 18.True or false: a microcontroller runs many apps at once. (a) True (b) False
19. 19.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
20. 20.🤖 How does a new program get onto a microcontroller board? (a) drawn with a pen (b) uploaded over USB (c) sent by sound (d) typed on the chip
21. 21.True or false: a microwave oven usually has a microcontroller inside. (a) True (b) False
22. 22.True or false: a toy robot usually has a microcontroller inside. (a) True (b) False
23. 23.True or false: a laptop has a built-in keyboard. (a) False (b) True
24. 24.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a bicycle bell (d) a digital thermometer
25. 25.Which job is done by the power LED? (a) connect sensors and LEDs (b) brings power and code (c) keeps the voltage steady (d) shows the board is on
26. 26.True or false: a hand pump has no microcontroller inside. (a) False (b) True
27. 27.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
28. 28.True or false: a microwave oven has no microcontroller inside. (a) True (b) False
29. 29.Which of these usually has a microcontroller inside? (a) a TV remote (b) a hand pump (c) a candle (d) a plain wall switch
30. 30.🧭 Which part of a microcontroller board restarts the program? (a) the power LED (b) the USB port (c) the voltage regulator (d) the reset button
31. 31.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
32. 32.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
33. 33.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
34. 34.True or false: a laptop runs many apps at once. (a) True (b) False
35. 35.🧭 Which part of a microcontroller board runs the program? (a) the USB port (b) the power LED (c) the voltage regulator (d) the main chip
36. 36.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
37. 37.Which job is done by the pins? (a) connect sensors and LEDs (b) brings power and code (c) shows the board is on (d) runs the program
38. 38.True or false: a spinning top has no microcontroller inside. (a) False (b) True
39. 39.True or false: a TV remote has no microcontroller inside. (a) False (b) True
40. 40.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes

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