
AUU4
Authored by César Ramírez
Other
9th - 12th Grade
10 Questions
Used 6+ times

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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Para qué sirve la técnica PWM en Arduino?
Para simular un voltaje analógico con una salida digital
Para medir temperatura directamente
Para conectarse a Wi‑Fi
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En un Arduino UNO, ¿cuáles pines son compatibles con PWM?
3, 5, 6, 9, 10 y 11
2, 4, 7, 8, 12 y 13
Solo A0 a A5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si usas analogWrite(pin, 255) con un LED, ¿qué ocurre?
Enciende al máximo brillo
Enciende a media intensidad
Se apaga
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Las entradas analógicas (A0–A5) leen valores entre:
0 y 1023
0 y 255
0 y 5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Para usar un potenciómetro y controlar el brillo con analogWrite(), la lectura (0–1023) se debe:
Dividir entre 4
Multiplicar por 4
Restar 1023
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La función map() en Arduino se usa para:
Convertir un rango de valores a otro
Repetir un bloque de código
Guardar datos en la memoria
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Según el montaje descrito, cuando oscurece sobre una LDR:
Aumenta su resistencia y la lectura analógica baja
Disminuye su resistencia y la lectura sube
No cambia nada
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