This burglar alarm system circuit is using a infrared proximity ... Assemble the transmitter and receiver-cum-alarm circuits on two separate general-purpose PCBs and house in suitable cabinets. Mount ...

Any time you are working with burglar alarm, access control, sound, nurse call, or intercom systems, as well as computer networks, lighting dimmer controls, and low-voltage industrial controls, you ...

The circuit is ideal as the front end of burglar alarm circuits. Smoke detector This home smoke detector circuit warns the user against fire accidents. It relies on the smoke that is produced in the ...