Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 242 · 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 digital thermometer usually have a microcontroller inside? (a) Yes (b) No
2. 2.True or false: a smart watch has no microcontroller inside. (a) True (b) False
3. 3.Which of these usually has a microcontroller inside? (a) a spinning top (b) a digital alarm clock (c) a hand pump (d) a bicycle bell
4. 4.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
5. 5.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
6. 6.Which of these usually has a microcontroller inside? (a) a spinning top (b) a candle (c) a toy robot (d) a plain wall switch
7. 7.True or false: a laptop has no screen of its own. (a) False (b) True
8. 8.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
9. 9.🤖 Does a candle usually have a microcontroller inside? (a) Yes (b) No
10. 10.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a microwave oven (c) a hand pump (d) a toy robot
11. 11.🤖 Does a digital alarm clock usually have a microcontroller inside? (a) No (b) Yes
12. 12.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
13. 13.True or false: a laptop runs one small program. (a) True (b) False
14. 14.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
15. 15.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
16. 16.Which job is done by the pins? (a) keeps the voltage steady (b) connect sensors and LEDs (c) brings power and code (d) restarts the program
17. 17.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) drawn with a pen (d) uploaded over USB
18. 18.🧭 Which part of a microcontroller board runs the program? (a) the reset button (b) the power LED (c) the main chip (d) the voltage regulator
19. 19.True or false: a laptop runs many apps at once. (a) False (b) True
20. 20.🤖 Where does the board keep its program when the power is off? (a) flash memory (b) the USB cable (c) the resistor (d) the power LED
21. 21.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a smart watch (c) a toy robot (d) a candle
22. 22.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
23. 23.True or false: a bicycle bell has no microcontroller inside. (a) False (b) True
24. 24.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
25. 25.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
26. 26.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
27. 27.🤖 Does a toy robot usually have a microcontroller inside? (a) No (b) Yes
28. 28.🤖 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
29. 29.True or false: a digital thermometer usually has a microcontroller inside. (a) False (b) True
30. 30.Which of these usually has a microcontroller inside? (a) a TV remote (b) a candle (c) a bicycle bell (d) a wind-up toy
31. 31.True or false: a microcontroller runs one small program. (a) False (b) True
32. 32.🤖 What is a microcontroller? (a) a big desktop computer (b) a kind of bulb (c) a computer on one chip (d) a type of battery
33. 33.Which job is done by the reset button? (a) runs the program (b) restarts the program (c) keeps the voltage steady (d) shows the board is on
34. 34.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
35. 35.Which job is done by the voltage regulator? (a) restarts the program (b) shows the board is on (c) connect sensors and LEDs (d) keeps the voltage steady
36. 36.True or false: a microcontroller has no screen of its own. (a) False (b) True
37. 37.Which of these usually has a microcontroller inside? (a) a candle (b) a plain wall switch (c) a smart watch (d) a hand pump
38. 38.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the reset button (c) the pins (d) the voltage regulator
39. 39.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
40. 40.Which job is done by the power LED? (a) connect sensors and LEDs (b) runs the program (c) restarts the program (d) shows the board is on

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