Optical switch with photo sensors
Can you help me to find circuits which uses photo-sensors.and if you do have them, would you please send them to me.
Mail from TM
Just a few days back i have added one. It is to turn of-on water taps.
Optical Obstacle Switch. – one more here delabs-circuits.com-digital thru all links in great detail.
More in the web
How Infrared motion detector components work – Infrared radiation exists in the electromagnetic spectrum at a wavelength that is longer than visible light. It cannot be seen but it can be detected.
K30 PIR Movement Detector – This circuit is designed around a custom motion-detection IC KC778B. The circuit utilizes both a PIR (Passive InfraRed) detector and a light-dependent resistor (LDR) to detect motion up to 6 meters away.
The MPCC has been designed for easy implementation of AC control functions that use a Passive Infra-Red (PIR) motion detector. Due to its high sensitivity and reliability, it is also widely used in security product.
Bewegungsmelder – Motion detectors
delabs
Another related Question
I am working on a project where I am trying to adjust the brightness of a set of LEDs based on the amount of IR light detected. I have experimented with using a photo transistor, but i can’t seem to amplify the difference experienced enough to visibly change the brightness of attached leds.
