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Photodetector - Simple English Wikipedia, the free encyclopedia


A photocell, also known as a photoresistor, is an electronic component, device that changes its electrical conductivity when light shines on it. In the picture, the ...

Using a Photocell | Photocells | Adafruit Learning System


Jul 29, 2012 ... Photocell simple testing sketch. Connect one end of the photocell to 5V, the other end to Analog 0. Then connect one end of a 10K resistor from ...

A Simple and Cheap Dark-Detecting LED Circuit | Evil Mad Scientist ...


Dec 12, 2007 ... Here's a simple problem: “How do you make an LED turn on when it gets ... sometimes called a photocell or LDR, for “light-dependent resistor.

Will this simple photocell circuit work? | Electronics and Electrical ...


It seems to me that this simple circuit should work. When the photocell is dark, it completely resists current, meaning that the minilamp cannot ...

Simple Homemade Photocell.


Sep 12, 2003 ... This is a copper oxide photocell and is very simple to make using materials found around the house, yet it seems to serve the purpose as well ...

A Simple Photocell To Demonstrate Solar Energy Using Benign ...


Sep 27, 2013 ... A laboratory exercise for the construction of a dye-sensitized solar cell using everyday household and benign products has been developed.

A Simple Photocell To Demonstrate Solar Energy Using Benign ...


Sep 27, 2013 ... A Simple Photocell To Demonstrate Solar Energy Using Benign. Household Ingredients. York R. Smith,. †. Eric Crone, and Vaidyanathan ...

Simple Photocell LED Nightlight | All About Circuits


Aug 29, 2009 ... I am about as new to electronics as you can be. So bear with me. I am trying to do a very simple LED circuit for a nightlight, using a Photocell...

Photocell / Light Dependent Resistor Circuits - Electronics Tutorial ...


Photocell / Light Dependent Resistor Circuits and Tutorials - 8 ... The circuit on this page is for a simple light detector circuit board that has 8 detectors that can be ...

Light Sensor including Photocell and LDR Sensor


Electronics Tutorial about Light Sensor including Photocells, LDR, Photodiodes, ... One simple use of a Light Dependent Resistor, is as a light sensitive switch as  ...

Popular Q&A
Q: DIY Simple Photocell Tester.
A: 1. Attach the red lead of the battery holder to the breadboard. Place the photocell into the breadboard, and connect one side to the battery holder lead, using ... Read More »
Source: www.ehow.com
Q: What am I doing wrong with this simple LED/photocell circuit?
A: What you are doing is using the photocell as a transmitting device. It is having low resistance in presence of light, and passing current to the LED. That is op... Read More »
Source: answers.yahoo.com
Q: What am I doing wrong with this simple LED/photocell circuit?
A: Here's the deal, look up an "LED throwie" and you'll see basically whats going on here. You connect an LED to a 3v coin cell battery and it lights up. Simple, .... Read More »
Source: answers.yahoo.com
Q: Simple disk to dawn photocell switch?
A: See the circuit here: http://www.discovercircuits.com/DJ-Circu…. Read More »
Source: answers.yahoo.com
Helpful Resources

Photocell tutorial! - Instructables


Photocells a.k.a CdS cells, photoresistors, LDR (light dependent resistor)...What is a photocell?Photocells are sensors that allow you to detect light. They are ...