Re: What is Light Dependent Resistor (LDR) ?

Thu Oct 12, 2017 10:43 pm

margaritabrutas wrote:sir this sensor , with what range can achieve?

LDR sensor is not sensitive in the light wavelength range, it just measure the intensity of the light.

Fri Oct 13, 2017 8:03 am

jhllmxxr wrote:pag nag LDR po ba kaylangan din ng speed?

Sa tingin ko hindi eh, kasi yung ldr is sensor lang sya na magsesend ng 1 or 0 eh. hehehez

Fri Oct 13, 2017 8:13 am

kamil wrote:what if a homogeneous material(like a crystal ball) is placed between a flash light/light source and a ldr, will the ldr still sense the light source?

Fri Oct 13, 2017 8:18 am

ndreanicoke wrote:Can it sense other outdoor light conditions aside from direct sunlight? What if its already morning pero makulimlim?

Fri Oct 13, 2017 8:21 am

Sammy wrote:

jhllmxxr wrote:pag nag LDR po ba kaylangan din ng speed?

Sa tingin ko hindi eh, kasi yung ldr is sensor lang sya na magsesend ng 1 or 0 eh. hehehez

LDRs are known for having slow response times in low light. Response time differ depending on the model but are still below 90ms.

Fri Oct 13, 2017 8:23 am

Lizaaaaaaa wrote:Nadedetect po ba ng LDR yung LED's? or pwede ba gamitin yung sensor na to tapos idedetect nya yung ilaw ng LED?

Fri Oct 13, 2017 8:26 am

margaritabrutas wrote:sir.... is this LDR sensor is sensitive pin or not ?

Fri Oct 13, 2017 8:29 am

jenny.edano wrote:Annyeong Dadagdagan ko lang po yung tanong ni margs Hanngang anong range po yung nasesense ng LDR saka po is it necessary po ba na kada isang LED is isang LDR sensor and transistor din po ? Kamsahamnida

What is Light Dependent Resistor (LDR) ?

Re: What is Light Dependent Resistor (LDR) ?

Re: What is Light Dependent Resistor (LDR) ?

The ldr will still sense the light source even a homogeneous material is placed in between. The sensitivity of the ldr depends to the calibration you made.

Yes. The way how we do the circuit of the ldr will tell the sensor on how it will sense light.

Re: What is Light Dependent Resistor (LDR) ?

Opo, nade-detect po. As long as merong nilalabas na ilaw yung componet mo mag fu-function po ang LDR.

I think the LDR is very sensitive when it comes to its calibration. You will be needing an accurate value of the resistor. Its sensitivity, varies upon its calibration.

I've tried a circuit where I used 5 LDRs and just used one transistor. They are connected in series where all the ldrs are connected to one transistor. Any of the LDR sensed light, the led turns off.

Re: What is Light Dependent Resistor (LDR) ?