Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 226 · 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 hand pump (b) a spinning top (c) a candle (d) a washing machine
2. 2.Which job is done by the reset button? (a) keeps the voltage steady (b) runs the program (c) connect sensors and LEDs (d) restarts the program
3. 3.True or false: a microcontroller has a built-in keyboard. (a) False (b) True
4. 4.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
5. 5.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
6. 6.Which of these has no microcontroller inside? (a) a spinning top (b) a microwave oven (c) a washing machine (d) a toy robot
7. 7.🤖 Does a hand pump usually have a microcontroller inside? (a) Yes (b) No
8. 8.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the USB port (b) the voltage regulator (c) the power LED (d) the pins
9. 9.🤖 Does a digital thermometer usually have a microcontroller inside? (a) No (b) Yes
10. 10.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
11. 11.🤖 When the main loop of a microcontroller program ends, what happens? (a) the board breaks (b) it stops forever (c) it deletes itself (d) it starts again
12. 12.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
13. 13.True or false: a laptop has no screen of its own. (a) True (b) False
14. 14.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
15. 15.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a candle (d) a microwave oven
16. 16.Which of these has no microcontroller inside? (a) a toy robot (b) a microwave oven (c) a wind-up toy (d) a digital thermometer
17. 17.True or false: a bicycle bell has no microcontroller inside. (a) True (b) False
18. 18.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the power LED (c) the main chip (d) the reset button
19. 19.True or false: a hand pump usually has a microcontroller inside. (a) True (b) False
20. 20.True or false: a smart watch usually has a microcontroller inside. (a) False (b) True
21. 21.🤖 How does a new program get onto a microcontroller board? (a) uploaded over USB (b) typed on the chip (c) drawn with a pen (d) sent by sound
22. 22.🤖 Which is a safe power source for a beginner microcontroller board? (a) USB or a 9 V battery (b) bare mains wires (c) a wall socket directly (d) a 230 V cable
23. 23.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
24. 24.True or false: a toy robot usually has a microcontroller inside. (a) False (b) True
25. 25.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the main chip (b) the voltage regulator (c) the power LED (d) the reset button
26. 26.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
27. 27.Which of these has no microcontroller inside? (a) a toy robot (b) a digital alarm clock (c) a bicycle bell (d) a microwave oven
28. 28.🧭 Which part of a microcontroller board brings power and code? (a) the voltage regulator (b) the main chip (c) the USB port (d) the pins
29. 29.True or false: a TV remote has no microcontroller inside. (a) False (b) True
30. 30.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the pins (c) the main chip (d) the reset button
31. 31.🧭 Which part of a microcontroller board runs the program? (a) the pins (b) the main chip (c) the USB port (d) the voltage regulator
32. 32.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
33. 33.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
34. 34.Which job is done by the voltage regulator? (a) shows the board is on (b) brings power and code (c) keeps the voltage steady (d) runs the program
35. 35.🤖 Does a microwave oven usually have a microcontroller inside? (a) No (b) Yes
36. 36.True or false: a microcontroller uses very little power. (a) True (b) False
37. 37.🤖 Does a TV remote usually have a microcontroller inside? (a) Yes (b) No
38. 38.True or false: a smart watch has no microcontroller inside. (a) False (b) True
39. 39.🤖 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
40. 40.Which of these usually has a microcontroller inside? (a) a bicycle bell (b) a candle (c) a digital thermometer (d) a hand pump

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