Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 737 · 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 job is done by the USB port? (a) keeps the voltage steady (b) shows the board is on (c) brings power and code (d) restarts the program
2. 2.True or false: a microcontroller uses very little power. (a) False (b) True
3. 3.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a microwave oven (d) a wind-up toy
4. 4.🤖 When the main loop of a microcontroller program ends, what happens? (a) it stops forever (b) it starts again (c) the board breaks (d) it deletes itself
5. 5.Which of these usually has a microcontroller inside? (a) a spinning top (b) a bicycle bell (c) a plain wall switch (d) a toy robot
6. 6.🧭 Which part of a microcontroller board restarts the program? (a) the reset button (b) the main chip (c) the voltage regulator (d) the power LED
7. 7.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a plain wall switch (c) a digital thermometer (d) a hand pump
8. 8.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
9. 9.🤖 Does a wind-up toy usually have a microcontroller inside? (a) Yes (b) No
10. 10.🤖 Where does the board keep its program when the power is off? (a) the USB cable (b) the power LED (c) flash memory (d) the resistor
11. 11.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
12. 12.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the pins (c) the main chip (d) the power LED
13. 13.🧭 Which part of a microcontroller board brings power and code? (a) the USB port (b) the voltage regulator (c) the power LED (d) the reset button
14. 14.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the voltage regulator (b) the power LED (c) the pins (d) the reset button
15. 15.True or false: a spinning top usually has a microcontroller inside. (a) True (b) False
16. 16.Which job is done by the power LED? (a) keeps the voltage steady (b) shows the board is on (c) brings power and code (d) restarts the program
17. 17.🤖 Does a plain wall switch usually have a microcontroller inside? (a) Yes (b) No
18. 18.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
19. 19.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) typed on the chip (c) drawn with a pen (d) uploaded over USB
20. 20.Which of these has no microcontroller inside? (a) a hand pump (b) a digital thermometer (c) a smart watch (d) a TV remote
21. 21.🤖 Which is a safe power source for a beginner microcontroller board? (a) a 230 V cable (b) a wall socket directly (c) USB or a 9 V battery (d) bare mains wires
22. 22.Which of these has no microcontroller inside? (a) a microwave oven (b) a toy robot (c) a digital thermometer (d) a plain wall switch
23. 23.True or false: a laptop has no screen of its own. (a) True (b) False
24. 24.True or false: a microcontroller needs much more power. (a) True (b) False
25. 25.Which of these has no microcontroller inside? (a) a toy robot (b) a TV remote (c) a spinning top (d) a digital alarm clock
26. 26.Which job is done by the main chip? (a) keeps the voltage steady (b) connect sensors and LEDs (c) restarts the program (d) runs the program
27. 27.True or false: a laptop has a built-in keyboard. (a) False (b) True
28. 28.🤖 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
29. 29.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the USB port (b) the voltage regulator (c) the pins (d) the reset button
30. 30.🤖 Microcontroller or laptop: which one runs one small program? (a) microcontroller (b) laptop
31. 31.🤖 Does a candle usually have a microcontroller inside? (a) No (b) Yes
32. 32.Which of these usually has a microcontroller inside? (a) a candle (b) a washing machine (c) a hand pump (d) a wind-up toy
33. 33.🤖 Microcontroller or laptop: which one has no screen of its own? (a) laptop (b) microcontroller
34. 34.Which job is done by the voltage regulator? (a) restarts the program (b) keeps the voltage steady (c) shows the board is on (d) brings power and code
35. 35.True or false: a microcontroller runs one small program. (a) True (b) False
36. 36.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital thermometer (c) a bicycle bell (d) a washing machine
37. 37.🤖 Does a hand pump usually have a microcontroller inside? (a) No (b) Yes
38. 38.True or false: a bicycle bell usually has a microcontroller inside. (a) True (b) False
39. 39.Which of these usually has a microcontroller inside? (a) a wind-up toy (b) a spinning top (c) a smart watch (d) a plain wall switch
40. 40.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes

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