Buzzer circuit

Published:2011/5/19 18:28:00 Author:Christina | Keyword: Buzzer | From:SeekIC

You can not judge if the engine monitoring indicator is turned on in day time, so you can use the buzzer circuit to compensate this shortage. Every time you start the engine, JFET 2N5434 will be conducted at 7 seconds delay time, so in the process of start the car and increase the hydraulic, the buzzer will not ring; at this time the indicator light monitors the oil pressure sensor and the engine temperature sensor. The whole circuit can beinstalled in the abandoned buzzer plastic shell of the bridge.



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