| .. _MAX17048_sample: |
| |
| MAX17048 Li-Ion battery fuel gauge |
| ################################### |
| |
| Overview |
| ******** |
| |
| This sample shows how to use the Zephyr :ref:`fuel_gauge_api` API driver for the `MAX17048` fuel gauge. |
| |
| .. _MAX17048: https://www.maximintegrated.com/en/products/power/battery-management/MAX17048.html |
| |
| The sample periodically reads battery percentage and power status |
| |
| Building and Running |
| ******************** |
| |
| The sample can be configured to support MAX17048 fuel gauge connected via either I2C. It only needs |
| an I2C pin configuration |
| |
| Features |
| ******** |
| By using this fuel gauge you can get the following information: |
| * Battery charge status as percentage |
| * Total time until battery is fully charged or discharged |
| * Battery voltage |
| * Charging state: if charging or discharging |
| |
| |
| Notes |
| ***** |
| The charging state and the time to full/empty are estimated and based on the last consumption average. That means that |
| if you plug/unplug a charger it will take some time until it is actually detected by the chip. Don't try to plug/unplug |
| to see in real time the charging status change because it will not work. If you really need to know exactly the moment |
| when the battery is being charged you will need other method. |
| |
| Sample output |
| ************* |
| |
| ``` |
| *** Booting Zephyr OS build 16043f62a40a *** |
| Found device "max17048@36", getting fuel gauge data |
| Time to empty 1911 |
| Time to full 0 |
| Charge 72% |
| Voltage 3968 |
| Time to empty 1911 |
| Time to full 0 |
| Charge 72% |
| Voltage 3968 |
| ``` |