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You can't detect white color using red and green LEDs. You should use white LED to detect white.
no you have to use green led for detecting green color, and vice versa...you HAVE to use only white led to detect white color.
no.the resistance of the LDR is very high. but there are circuits to boost the current.
yes agreed.but i am using a small vibrator. it uses very less current, so you can use it.
ARDUINO Burglar Alarm Using Infrared Emitter-Detector pair
Is this the same way how scroll up/down in a mouse work?
Also, what changes should I do in the code for me to detect only black color objects which will be placed at a small distance (~2cm-3cm) from the led pair.Again I will be excited if you reply as soon as possible!
Can it detect black color?If it detects black color, then how do I differentiate between white and black color?Also, what are the changes to be done in the code if I am using only one transmitter?I will be very excited if you reply as soon as possible!
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