Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: drinu on October 24, 2008, 07:48:10 AM

Title: photoresistor help!!
Post by: drinu on October 24, 2008, 07:48:10 AM

Hi, Can anyone explain to me how to connect an LDR (photoresistor) to a circuit. web site 1 is a rough diagram of how I want my circuit to be.

web site 1 : http://www.picoodle.com/view.php?img=/3/10/24/f_fileCDocumem_1546efd.jpg&srv=img02

By the way i'm not professional in these things, so please i appreciate if you keep it as simple as possible.
and sorry for my weired English:/

Thanks in advance  :)

Title: Re: photoresistor help!!
Post by: Trumpkin on October 24, 2008, 08:46:33 AM

Solder.

Title: Re: photoresistor help!!
Post by: drinu on October 24, 2008, 09:36:38 AM

gust soldiring them ??? as far as i know you need to use other components to make the resistor to work. am i right ?

Title: Re: photoresistor help!!
Post by: ang5t on October 25, 2008, 01:29:51 AM

Hey there, as far as just connecting the LED to a circuit, yes, soldering is the way to go. If you are asking about other parts of the circuit, that can vary. This may help you out http://www.societyofrobots.com/electronics_led_tutorial.shtml (http://www.societyofrobots.com/electronics_led_tutorial.shtml). There are also some other tutorials here http://www.societyofrobots.com/robot_tutorial_index.shtml that may help you out.

Title: Re: photoresistor help!!
Post by: drinu on October 25, 2008, 01:35:58 AM

thanks ang5t :)

but i was browsing and saw this site: http://www.technologystudent.com/elec1/lgtdrk2.htm .so why in this diagram there are more components such as resistors, relay, transistor etc ??

http://www.technologystudent.com/elec1/lgtdrk1.htm

By the way i want to connect a motor instead of an LED.

Thanks again :)

Title: Re: photoresistor help!!
Post by: CrashOverron on October 25, 2008, 07:47:14 AM

http://www.societyofrobots.com/schematics_photoresistor.shtml

there you go m8 article just on photoresistors

Title: Re: photoresistor help!!
Post by: drinu on October 26, 2008, 09:39:44 AM

Will this circuit work good?

http://www.picoodle.com/view.php?img=/3/10/26/f_2m_2173a42.jpg&srv=img32

http://www.picoodle.com/view.php?img=/3/10/26/f_1m_b4f3420.jpg&srv=img34