In real life, most of us have had the pain of the loss of valuables,
that upset even panic mood is really let a person suffering!Now life rhythm
becomes faster and faster, the neighboring environment is deteriorating,
forgetfulness, negligence, theft and other reasons caused by the loss of
valuables on almost every day.Therefore, in order to prevent the occurrence
of the accident, you need to have a faithful patron saint, wear a lost;
preventer, she can effectively protect your valuables from lost!
Is used by the design of bluetooth lost; preventer STC89C52 single-chip
computer and reset circuit, crystals circuit, bluetooth module circuit,
receiving alarm and power module.First open the mobile phone bluetooth
bluetooth matching and motherboard, after the success of the match,
microcontroller through the serial port and bluetooth module HM - 05 to
send data, cell phone bluetooth receiving data in real time.When cell
phones and bluetooth motherboard is more than a certain distance, phone
alarm, suggesting the thief, go back to see at once in search.Bluetooth
control apparatus has high reliability, good stability and
anti-interference ability is strong, easy to use.The specific price
higher.
