CubeCell
From Eric
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== Measuring battery level == | == Measuring battery level == | ||
The battery voltage can be read using the getBatteryVoltage() API. | The battery voltage can be read using the getBatteryVoltage() API. | ||
| - | This is achieved by connecting the ADC to vbat via a 1/2 | + | This is achieved by connecting the ADC to vbat via a voltage divider (*1/2): |
Latest revision as of 08:56, 10 April 2021
The CubeCell module
[cubecell.jpg]
Problem uploading sketches
In case you cannot upload the sketch to the cude cell (timeout when connecting to the bootloader), a solution consists to set the CubeCell in bootloader mode manually by:
- pressing the user button
- pressing the reset button
- releasing the reset button
- releasing the user button
Measuring battery level
The battery voltage can be read using the getBatteryVoltage() API. This is achieved by connecting the ADC to vbat via a voltage divider (*1/2):
In order to prevent the battery to dry out via the divider, connection to vbat is controlled by GPIO7 via a dual transistor (AO7801).
