Bag anti-lost alarm circuit

Published:2011/7/25 2:17:00 Author:Christina | Keyword: Bag, anti-lost, alarm | From:SeekIC

The bag anti-lost alarm circuit is composed of the transmitter and receiver, the transmitter is in the bag, and the receiver goes with you, when the bag leaves the owner of 5-10 meters, the receiver will send out the alarm sound to warn the owner. The principle diagram of the transmitter is as shown in the figure.



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