The recommended power-on sequence is to apply VDD first, followed by VDDIO, and then the clock signal. This ensures proper initialization of the device.
To configure the LIS331DL for low-power mode, set the LPEN bit in the CTRL_REG1 register to '1'. This reduces the current consumption to approximately 10 μA.
The self-test feature in the LIS331DL is used to verify the integrity of the sensor and the analog-to-digital converter (ADC). It applies a known stimulus to the sensor and checks the output to ensure it is within expected limits.
The LIS331DL generates interrupts on events such as data ready, overrun, and free-fall detection. To handle interrupts, configure the INT1 and INT2 pins as inputs, and use an external interrupt controller or a microcontroller to handle the interrupt requests.
The LIS331DL has a maximum acceleration range of ±24g, ±19.6g, or ±8g, depending on the full-scale range selected through the FS bit in the CTRL_REG4 register.
LIS331DLM datasheet
by STMicroelectronics
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