Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 718 · 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 toy robot usually have a microcontroller inside? (a) Yes (b) No
2. 2.True or false: a microwave oven has no microcontroller inside. (a) False (b) True
3. 3.Which job is done by the pins? (a) restarts the program (b) shows the board is on (c) connect sensors and LEDs (d) runs the program
4. 4.True or false: a laptop runs one small program. (a) True (b) False
5. 5.🤖 Does a plain wall switch usually have a microcontroller inside? (a) No (b) Yes
6. 6.True or false: a microcontroller needs much more power. (a) False (b) True
7. 7.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
8. 8.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a smart watch (c) a bicycle bell (d) a wind-up toy
9. 9.🤖 Does a smart watch usually have a microcontroller inside? (a) Yes (b) No
10. 10.🤖 Does a TV remote usually have a microcontroller inside? (a) No (b) Yes
11. 11.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
12. 12.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the reset button (c) the USB port (d) the pins
13. 13.🤖 Microcontroller or laptop: which one runs one small program? (a) laptop (b) microcontroller
14. 14.True or false: a digital alarm clock has no microcontroller inside. (a) True (b) False
15. 15.True or false: a toy robot has no microcontroller inside. (a) True (b) False
16. 16.🤖 Does a wind-up toy usually have a microcontroller inside? (a) No (b) Yes
17. 17.🤖 Does a bicycle bell usually have a microcontroller inside? (a) Yes (b) No
18. 18.Which of these has no microcontroller inside? (a) a wind-up toy (b) a digital thermometer (c) a digital alarm clock (d) a toy robot
19. 19.🤖 How does a new program get onto a microcontroller board? (a) sent by sound (b) uploaded over USB (c) typed on the chip (d) drawn with a pen
20. 20.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
21. 21.Which of these has no microcontroller inside? (a) a toy robot (b) a washing machine (c) a hand pump (d) a microwave oven
22. 22.True or false: a smart watch usually has a microcontroller inside. (a) True (b) False
23. 23.Which job is done by the power LED? (a) restarts the program (b) keeps the voltage steady (c) connect sensors and LEDs (d) shows the board is on
24. 24.True or false: a microcontroller uses very little power. (a) True (b) False
25. 25.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) flash memory (d) the resistor
26. 26.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the pins (c) the USB port (d) the reset button
27. 27.🤖 Which is a safe power source for a beginner microcontroller board? (a) a wall socket directly (b) bare mains wires (c) USB or a 9 V battery (d) a 230 V cable
28. 28.Which job is done by the reset button? (a) shows the board is on (b) restarts the program (c) runs the program (d) connect sensors and LEDs
29. 29.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) laptop (b) microcontroller
30. 30.🤖 Microcontroller or laptop: which one uses very little power? (a) microcontroller (b) laptop
31. 31.Which job is done by the main chip? (a) shows the board is on (b) keeps the voltage steady (c) runs the program (d) brings power and code
32. 32.Which of these usually has a microcontroller inside? (a) a digital alarm clock (b) a spinning top (c) a wind-up toy (d) a candle
33. 33.🤖 What is a microcontroller? (a) a computer on one chip (b) a big desktop computer (c) a kind of bulb (d) a type of battery
34. 34.True or false: a microcontroller runs many apps at once. (a) True (b) False
35. 35.🧭 Which part of a microcontroller board shows the board is on? (a) the power LED (b) the reset button (c) the main chip (d) the pins
36. 36.🤖 Microcontroller or laptop: which one runs many apps at once? (a) laptop (b) microcontroller
37. 37.🤖 Microcontroller or laptop: which one needs much more power? (a) microcontroller (b) laptop
38. 38.True or false: a laptop uses very little power. (a) False (b) True
39. 39.True or false: a bicycle bell usually has a microcontroller inside. (a) False (b) True
40. 40.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a candle (c) a toy robot (d) a wind-up toy

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