Understanding U2 Functionality

Thought for 42 sec

Una conexión común para un LDR (fotocelda) es mediante un divisor de voltaje. La conexión típica es la siguiente:

Conecta un extremo del LDR a VCC: Esto puede ser, por ejemplo, 5 V o 3.3 V, dependiendo de tu circuito.
Conecta el otro extremo del LDR a una resistencia fija: Esta resistencia se conecta a GND (tierra). La combinación forma un divisor de voltaje.
Se toma la señal en el punto intermedio: El nodo entre el LDR y la resistencia fija se conecta a la entrada analógica (ADC) del microcontrolador. El voltaje en este nodo variará según la intensidad de luz incidente sobre el LDR.

Por ejemplo:

VCC
  │
 [LDR]
  │───── Nodo (Entrada ADC)
 [R] 
  │
GND

Esta configuración permite medir el cambio en el voltaje del nodo conforme varía la resistencia del LDR con la luz, lo que facilita una lectura analógica de la intensidad de la iluminación.

Si necesitas que te ayude a colocar estos componentes en tu esquema, puedo asistirte con las sugerencias para agregar los elementos y hacer la conexión. ¿Te gustaría proceder de esa forma?

darky9

valor recomendado para la resistencia

Thought for 29 sec

flux

El valor comúnmente recomendado para la resistencia en un divisor de voltaje con un LDR es de 10 kΩ. Este valor suele ser un buen punto de partida para cubrir un rango de condiciones de iluminación. Sin embargo, es posible que en algunos casos se deba ajustar (por ejemplo, entre 5 kΩ y 10 kΩ) según las características específicas del LDR y el rango de luz que se pretenda medir.

¿Te gustaría que te ayude a agregar esta configuración en tu esquema?

Agregar resistencia 10kΩ

Incluir configuración en esquema

Añadir resistencia recomendada

R21

Resistance

6.1kΩ

ST4

ST7

ST6

SL2

ST1

ST8

SL5

SH2

SH5

SH1

SH7

SL1

GND

SH4

SH11

SL3

SL2

ST5

SH12

SH10

GND

ST3

SL1

SH3

GND

SL4

GND

SL5

SH6

SH9

SL3

SL4

SH8

ST2

Reviews

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Project Name

Afraid Purple Sonic Screwdriver

Description

Welcome to your new project. Imagine what you can build here.

Properties

Properties describe core aspects of the project.

Pricing & Availability

Distributor	Qty 1
Arrow	$7.87–$7.89
Digi-Key	$9.33–$14.02
LCSC	$17.87
Mouser	$9.16
Verical	$6.40–$11.42

Controls

darky9 / Afraid Purple Sonic Screwdriver

Schematic