http://www.8051projects.net/ Learn to make simple microcontroller projects, pic, 8051, avr and arm projects. download 8051 projects, tutorials, libraries, sample codes. join the microcontroller discussion forum and ask doubts regarding electronics. the best source for 8051 over internet. en-gb 2009-01-07T21:59:34-08:00 contact@nospam.com hourly 1 2000-01-01T12:00+00:00 http://www.8051projects.net/forum-t6017.html 2009-01-07T21:59:34-08:00 i did this circuit in this web but it didn't work only the green led are always on and the blue and red don't do any thing also the LDR don't give any thing to the IC ( that what i think )coz no change in the volt that gos to the ledi need help to get color sensor that sens with cloth colors and give me sens in any thing coz i want to interface that with the pc that is my final year project plz help me asapi want to make this project or another one to sens the colors and give me data on the pc say the degree of this colors and which it contained of http://www.8051projects.net/forum-t6017.html 2009-01-07T21:59:34-08:00 Ajay where is the circuit? http://www.8051projects.net/forum-t6017.html 2009-01-07T21:59:34-08:00 thunder omg all this time and no one want to help me http://www.8051projects.net/forum-t6017.html 2009-01-07T21:59:34-08:00 ۞ TPS ۞ circuit ??????? http://www.8051projects.net/forum-t6017.html 2009-01-07T21:59:34-08:00 thunder here is my circuit plz tell me what wrong in it??and some ppl told me that i need to make micro controller circuit ??? is that right ?? and if u can tell me what is the rcx mean ?? and if it program or circuit can u give it to me ??and where i can see the results ??also tell me what ADC i can use and where i should connect it and how i can switch between colors? http://www.8051projects.net/forum-t6017.html 2009-01-07T21:59:34-08:00 Ajay wow nice.. did u see this one.. its build on same logic..http://www.robotroom.com/ColorSensor.html http://www.8051projects.net/forum-t6017.html 2009-01-07T21:59:34-08:00 thunder sorry here is the circuit :here is the circuit http://www.8051projects.net/forum-t6017.html 2009-01-07T21:59:34-08:00 thunder i didn't understand any thing from my project and the one u showed me i mad the one that i linked it to u but it didn't gave me what i want.i need circuit to sins with colors then give me reading how much is this color.mmm...like I put a piece of cloth with a specific color to the show who shall contain metres from the red How Green How Blue (basic colors)can u help me in that plz http://www.8051projects.net/forum-t6017.html 2009-01-07T21:59:34-08:00 Ajay i tell you the working of sensor...the CdS sensor o/p is connected to ADC, you have to switch each LED one by one.. lets say blue LED, the read ADC o/p then switch green read ADC value, then red... and read ADC again.. now you have got individual amount of primary colors present in the i/p color.now you can test the o/p of ADC with different colors... http://www.8051projects.net/forum-t6017.html 2009-01-07T21:59:34-08:00 thunder 'll any one help me plz http://www.8051projects.net/forum-t6017.html 2009-01-07T21:59:34-08:00 Ajay you can use any ADC, say 8-bit ADC0804..First of all.. the circuit you are using have no information on how to interface it with a controller.All you need is LED board from that circuit.. the LEDs can be connected to any port pin of controller and LDR's O/p goes to ADC. switching of LEDs is simple... you just need to make that port pin high, LED will glow.Switching will be done in intervals.. you need to take 3 samples per second, one for each sensor. set the timer interrupt for 300mS, so whenever 300mS are over, start ADC and get the value and switch to next sensor.. once you are done taking these three samples process your readings.. check the values you are getting from ADC.lets say readings are 200(R), 10(G), 30(B) - so your i/p color is more of red.. http://www.8051projects.net/forum-t6017.html 2009-01-07T21:59:34-08:00 thunder okcan u give me simple schismatic for what u say plzand if u can connect it to controller or pc tell me what to do plz http://www.8051projects.net/forum-t6017.html 2009-01-07T21:59:34-08:00 Ajay just go back to previous pages for link to circuits. http://www.8051projects.net/forum-t6017.html 2009-01-07T21:59:34-08:00 ۞ TPS ۞ please refer this link http://www.8051projects.net/forum-t4442-post.html