Product Description Want create site? Find Free WordPress Themes and plugins.The cadmium sulfide (CdS) or light dependent resistor (LDR) whose resistance is inversely proportional to the amount of light falling on it, is know by many names including the photo resistor, photoresistor, photoconductor, photconductive cell, or simply the photocell A typical structure for a photoresistor uses an active semiconductor layer that is deposited on an insulating substrate. The semiconductor is normally lightly doped to enable it to have the required level of conductivity. Contacts are then connected either side of the exposed area The photo-resistor, CdS, or LDR finds many uses as a low cost photo sensitive element and was used for many years in photographic light meters as well as other applications such as smoke, flame and burglar detectors, card readers and even lighting control for street lamps So now you know. This product is expected to be a 5516 but I still suggest you measure its resistance both fully dark and fully lit to tune for your application Dark resistance: ~0.2 Ohms Light resistance at 10Lx: 5-10k Ohms Response time: 40ms VDC (Max): 100V Adafruit has a good amount of information on using these: https://learn.adafruit.com/photocells Did you find apk for android? You can find new Free Android Games and apps.
