@dammytechelectronics: Electronics DIY Innovative Tech Projects #electronics #diyprojects #jlcpcb #techhacks This is a 12V battery low voltage alarm circuit, designed to alert you before your battery gets too low and starts getting damaged. Now here’s how it works… We connect a 12V battery as the input, and the circuit continuously monitors the voltage level. At the center of this design is the LM358 comparator, which compares the battery voltage with a reference voltage set using the TL431. As the battery voltage drops below a preset level, the comparator switches ON. That signal activates the transistor, which then triggers the buzzer and the LED. So immediately your battery becomes weak… the alarm starts sounding, and the LED lights up, warning you to recharge it. #creatorsearchinsights

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Thursday 26 March 2026 10:35:10 GMT