Try purchasing a fuel gauge IC. I'm actually in the process of building a fuel gauge board that communicates using I2C. I thought there might be a demand for this because it should be a lot more accurate than using the ADC.
Try purchasing a fuel gauge IC. I'm actually in the process of building a fuel gauge board that communicates using I2C. I thought there might be a demand for this because it should be a lot more accurate than using the ADC.