The “magic key” would be a transmitting chip key that you could keep in your pocket and be able to open your front door by normally turning the handle but someone who does not have a key within 10′ or so would not be able to open the door from the outside. (more…)
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"wireless"
Wireless Call Buzzer
Jesse Sherman | April 15th, 2008 | 1 CommentWireless call buzzer
This project was intended to have a button or switch in one area and wirelessly
transmit to the receiver for 1 or 2 output options. We chose a 1 output, to a buzzer. We will also tell you how to wire up the 2nd output at the end. You can use a variety of things that will suit your need for the out put. A few options we thought may be interesting are a flashing LED, buzzer or siren, a pre-recorded voice or sound output, and a few more. Please note, some modifications may need to be made to your design for different output types as well as cosmetical looks and structural integrity.
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