4.7 Power modes
Power modes can be used to reduce the power consumption when the device is not used. The VL53L8CX can
operate in one of the following power modes:
• Wake-up: The device is set in HP idle (high power), waiting for instructions.
• Sleep: The device is set in LP idle (low power), the low power state. The device cannot be used until set in
wake-up mode. This mode retains the firmware and the configuration.
The power mode can be changed using function vl53l8cx_set_power_mode(). The default mode is wake-up.
Note: If the user wants to change the power mode, the device must not be in a ranging state.
4.8
Sharpener
The signal returned from a target is not a clean pulse with sharp edges. The edges slope away and may affect the
distances reported in adjacent zones. The sharpener is used to remove some or all of the signal caused by veiling
glare.
The example shown in the following figure represents a close target at 100 mm centered in the FoV, and another
target, further behind at 500 mm. Depending on the sharpener value, the close target may appear in more zones
than the real one.
Figure 11. Example of scene using several sharpener values
Sharpener can be changed using function vl53l8cx_set_sharpener_percent(). The allowed values are between
0 % and 99 %. The default value is 5 %.
UM3109
Power modes
UM3109 - Rev 1
page 11/20
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