Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month
Very small - you can set it up everywhere.
Can use low voltage power - even USB
Have 2 resistor for tune in sensitivity.
Price is affordable.
Board could be smaller
If device so small - they should use SMD capasitors
It would be great to have digital in\out on it - I2C or rs232. 1 on\off pin is good, but not enought.
Great device - you can build your security system by your own. Small and cheap - you can buy many of them and configure sensitivity to cover any facility.
This device can be used as base of your security in your home. Just collect signal wires from all sensors to easy to program Atmel or microchip controller and you can trace everyones who move in your home.
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