Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 207 · 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 TV remote usually have a microcontroller inside? (a) No (b) Yes
2. 2.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
3. 3.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
4. 4.True or false: a TV remote usually has a microcontroller inside. (a) True (b) False
5. 5.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
6. 6.True or false: a laptop has no screen of its own. (a) True (b) False
7. 7.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
8. 8.Which job is done by the main chip? (a) restarts the program (b) runs the program (c) connect sensors and LEDs (d) brings power and code
9. 9.True or false: a smart watch has no microcontroller inside. (a) True (b) False
10. 10.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the main chip (c) the reset button (d) the voltage regulator
11. 11.Which job is done by the power LED? (a) runs the program (b) brings power and code (c) shows the board is on (d) keeps the voltage steady
12. 12.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
13. 13.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
14. 14.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a microwave oven (c) a bicycle bell (d) a hand pump
15. 15.🧭 Which part of a microcontroller board brings power and code? (a) the pins (b) the USB port (c) the voltage regulator (d) the main chip
16. 16.🧭 Which part of a microcontroller board shows the board is on? (a) the pins (b) the power LED (c) the USB port (d) the voltage regulator
17. 17.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
18. 18.🤖 Where does the board keep its program when the power is off? (a) the resistor (b) the USB cable (c) flash memory (d) the power LED
19. 19.True or false: a laptop runs one small program. (a) True (b) False
20. 20.True or false: a digital thermometer has no microcontroller inside. (a) True (b) False
21. 21.🤖 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
22. 22.🤖 Microcontroller or laptop: which one needs much more power? (a) laptop (b) microcontroller
23. 23.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
24. 24.🧭 Which part of a microcontroller board restarts the program? (a) the pins (b) the power LED (c) the USB port (d) the reset button
25. 25.Which of these usually has a microcontroller inside? (a) a hand pump (b) a spinning top (c) a candle (d) a toy robot
26. 26.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the main chip (c) the reset button (d) the pins
27. 27.🤖 Does a microwave oven usually have a microcontroller inside? (a) Yes (b) No
28. 28.🤖 Does a toy robot usually have a microcontroller inside? (a) Yes (b) No
29. 29.Which of these usually has a microcontroller inside? (a) a spinning top (b) a washing machine (c) a plain wall switch (d) a bicycle bell
30. 30.True or false: a laptop needs much more power. (a) False (b) True
31. 31.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a hand pump (c) a bicycle bell (d) a TV remote
32. 32.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) USB or a 9 V battery (c) a wall socket directly (d) bare mains wires
33. 33.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it stops forever (c) the board breaks (d) it starts again
34. 34.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the power LED (b) the pins (c) the voltage regulator (d) the main chip
35. 35.True or false: a digital alarm clock usually has a microcontroller inside. (a) False (b) True
36. 36.Which of these usually has a microcontroller inside? (a) a hand pump (b) a spinning top (c) a candle (d) a smart watch
37. 37.Which of these has no microcontroller inside? (a) a digital alarm clock (b) a TV remote (c) a toy robot (d) a plain wall switch
38. 38.🤖 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
39. 39.True or false: a toy robot has no microcontroller inside. (a) False (b) True
40. 40.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller

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