The gadget consists of a watchdog circuit, sensor and switch circuit, one-minute pulse generator, decade counter/divider and relay circuit. Watchdog circuit/ sensor circuit will detect whether the telephone is in use. If so, it extends theanbsp;...
|Title||:||Electronics Projects Vol. 15|
|Author||:||EFY Enterprises Pvt Ltd|
|Publisher||:||EFY Enterprises Pvt Ltd - 2009-11-01|