12V Battery Level Indicator Circuit
12V Battery Level Indicator Circuit using LM3914 IC: The LM3914 IC can sense voltage levels and can drive a display of 10 LEDs in dot mode or bar mode. The bar mode and dot mode can be externally set and more than one ICs can be cascaded together to get an extended display.
12V Battery Level Indicator Circuit using LM3914 IC
The LM3914 IC can operate from a wide supply voltage, the brightness of the LEDs can be programmed using an external resistor. The LED outputs of LM3914 IC are TTL and CMOS compatible.