A large area photodiode and current to frequency converter combined in a clear plastic 8-pin DIL package. The output is a pulse train whose frequency is directly proportional to the light intensity. The output is CMOS compatible (use a 3k3 pulldown resistor to drive LS TTL) and the frequency can be measured by pulse counting, [...]
Today we come to see the circuit detects the light by have a voice warn. When meet the light or be become dark depend on using S1 ( follow the circuit ). For this my circuit uses the integrated circuit IC 555 be pillar equipment again. You can choose can use many the number be [...]
This circuit is Audio Alarm, Control by light.
Light Detector with LDR (Cds).
use Timer IC 555 (hot IC)
To use for Audio Alarm, Security Circuits,
The circuit will beep origin when there is the light comes to agree on photocell , apply tell hiding opens steal of in a refrigerator can eat.
Read more : Light Detector By IC [...]
Obsession Theme by Lorelei. Coded by Cheap web hosting and Hostmonster.
Featuring Liza Kliko's artwork in the header.
