Car Back-up Alarm
Security circuits

Car Back-up Alarm

By Tony van Roon


The circuit diagram of Car Back-up Alarm. It is an older circuit, but still a good circuit today.
Car Back-up Alarm circuit
Car Back-up Alarm circuit

The brake lights of the automobile trigger this circuit on and off. This save the annoyance of the alarm when it is not needed.

1783 21 August 2007

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