The recommended power-on sequence is to first apply VDD (supply voltage) and then VDDIO (interface voltage). This ensures that the internal voltage regulators are properly initialized.
To configure the LIS331DLFTR for low-power mode, set the LPEN (Low Power Enable) bit in the CTRL_REG1 register to 1. This reduces the power consumption of the device, but may also affect its performance.
The LIS331DLFTR can measure accelerations up to ±24g (g-force) in its highest range setting. However, the maximum acceleration range can be adjusted by setting the FS (Full Scale) bits in the CTRL_REG4 register.
The LIS331DLFTR outputs 16-bit signed integer values for each axis (x, y, z). The output values represent the acceleration in units of mg (milli-g) and can be scaled using the sensitivity values provided in the datasheet.
The self-test feature in the LIS331DLFTR allows the device to perform an internal diagnostic test to verify its functionality. This feature can be enabled by setting the ST (Self-Test) bit in the CTRL_REG4 register.
LIS331DLFTR datasheet
by STMicroelectronics
