espressif/max17048

# MAX17048/MAX17049 The MAX17048/MAX17049 ICs are tiny, micropower current fuel gauges for lithium-ion (Li+) batteries in handheld and portable equipment. The MAX17048 operates with a single lithium cell and the MAX17049 with two lithium cells in series. The ICs use the sophisticated Li+ battery-modeling algorithm ModelGauge™ to track the battery relative state-of-charge (SOC) continuously over widely varying charge and discharge conditions. The ModelGauge algorithm eliminates current-sense resistor and battery-learn cycles required in traditional fuel gauges. Temperature compensation is implemented using the system microcontroller. More detailed data can be found in the [MAX17048/MAX17049 Datasheet](https://www.analog.com/media/en/technical-documentation/data-sheets/MAX17048-MAX17049.pdf). ## Example of MAX17048/MAX17049 usage ```c i2c_bus_handle_t i2c_bus = NULL; max17048_handle_t max17048 = NULL; //Step1: Init I2C bus i2c_config_t conf = { .mode = I2C_MODE_MASTER, .sda_io_num = I2C_MASTER_SDA_IO, .sda_pullup_en = GPIO_PULLUP_ENABLE, .scl_io_num = I2C_MASTER_SCL_IO, .scl_pullup_en = GPIO_PULLUP_ENABLE, .master.clk_speed = 400 * 1000, }; i2c_bus = i2c_bus_create(I2C_NUM_0, &conf); //Step2: Init max17048 max17048 = max17048_create(i2c_bus, MAX17048_I2CADDR_DEFAULT); // Step2: Get voltage and battery percentage float voltage = 0, percent = 0; max17048_get_cell_voltage(max17048, &voltage); max17048_get_cell_percent(max17048, &percent); ```

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License: Apache-2.0

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