Difference between revisions of "LDR Module"
Qian.zhang (talk | contribs) (→Features) |
Qian.zhang (talk | contribs) (→Introduction) |
||
| Line 3: | Line 3: | ||
The light sensor, also known as the light dependent resistor (LDR). Typically, the resistance of the light sensor will decrease when the ambient light intensity increases. | The light sensor, also known as the light dependent resistor (LDR). Typically, the resistance of the light sensor will decrease when the ambient light intensity increases. | ||
| − | [[File: | + | [[File:N17DH WITHOUT PACKAGED FRONT.jpg|640px]] |
| + | |||
| + | [[File:N17DH WITHOUT PACKAGED BACK.jpg|640px]] | ||
| + | |||
| + | [[File:N17DH PACKAGED FRONT.jpg|640px]] | ||
| + | |||
| + | [[File:N17DH PACKAGED BACK.jpg|640px]] | ||
== Features == | == Features == | ||
Revision as of 07:21, 6 September 2015
Introduction
The light sensor, also known as the light dependent resistor (LDR). Typically, the resistance of the light sensor will decrease when the ambient light intensity increases.
Features
Dimensions: 20.0×24.2×10.6mm
Net weight: 1.9g
Dimension
Schematics
Application Ideas
test code <syntaxhighlight lang="c">
- include <math.h>
const int ledPin=12; //Connect the Linker LED module to Pin12, Digital 12 const int thresholdvalue=10; //The treshold for which the LED should turn on. Setting it lower will make it go on at more light, higher for more darkness
void setup() {
Serial.begin(9600); //Start the Serial connection pinMode(ledPin,OUTPUT); //Set the LED on Digital 12 as an OUTPUT
} void loop() {
int sensorValue = analogRead(0); //Connect the Linker LDR module to A0, Analog 0
float Rsensor;
Rsensor=(float)(1023-sensorValue)*10/sensorValue;
if(Rsensor>thresholdvalue)
{
digitalWrite(ledPin,HIGH);
}
else
{
digitalWrite(ledPin,LOW);
}
Serial.println(Rsensor,DEC);
} </syntaxhighlight>
How to buy
Here to buy LRD Module on store
