This alarm plays your prerecorded voice message. It is built around the readily available quartz clock. Take the buzzer out of the quartz clock and connect its positive terminal to pin 1 and negative terminal to pin 2 of optocoupler IC MCT2E (IC2). Pin 4 of IC2 is grounded and pin 5 is connected to […]
The post Alarm using your own Voice appeared first on Electronics For You.
from Electronics For You http://bit.ly/2VI2cO8
No comments:
Post a Comment