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Low cost audible warning for 12V batteries – in DIY Equipment – Open Electronics


By Boris Landoni on October 2, 2023

This low-charge warning buzzer alerts you when your automobile’s battery is low. It’s designed for autos with 12V batteries, akin to automobiles, campers, and vans. You possibly can set it to sound when the voltage drops beneath a user-defined threshold utilizing a trimmer that permits for adjustment.

Soldering is required for meeting. The equipment comes with meeting directions in English.

 

Circuit diagram

Go to Open-Electronics Retailer

About Boris Landoni

Boris Landoni is the technical supervisor of Open-Electronics.org.
Expert within the GSM area, embraces the Open Supply philosophy and its initiatives can be found to the neighborhood.



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