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....
Category: Home-Office-Automation
Sound activated RF remote relay
I am to build a circuit that operates off some kind of sound input into a sound activated circuit, preferably some kind of voice operated relay circuit. This relay is then to operate some...
Audio Triggers a Relay Switch
message: Hello there i am just wondering how i would go about trying to get a circuit designed? The situation i have is i have got a sound signal peak voltage at approx 0.3v....
Door access controller with Biometrics
I am trying to design a 4 door access controller. I have a complete working board of fingerprint scanner with DSP for fingerprint verification and authentication.
