X-NUCLEO-53L0A1 shield
Overview
This sample demonstrate the usage of the 4 digits x 7 segments display and the three VL53L0X ranging sensors on the X-NUCLEO-53L0A1 ranging and gesture detection sensor expansion board.
When flashed on a board, 2 modes are available. To switch from one mode to the
other, press the button sw0.
Distance (onboard sensor)
This is the default mode when starting up. In this mode, if the distance to the center sensor (soldered on the shield) is lower than 1.25m, then the 4x7 segment display shows the distance in cm.
Proximity (onboard + satellites)
In this mode, the 4x7 segment display shows 3 stacked horizontal bars if there
is something in proximity for each sensor. The left sensor is shown on the
leftmost digit, then the center sensor, then the right sensor.
The proximity threshold is configured in
CONFIG_VL53L0X_PROXIMITY_THRESHOLD
To switch from one mode to another, press the button sw0
Requirements
This sample communicates over I2C with the X-NUCLEO-53L0A1 shield
stacked on a board with an Arduino connector. The board’s I2C must be
configured for the I2C Arduino connector (both for pin muxing
and devicetree). The board must also have a button with the alias sw0
in its device tree.
References
Building and Running
This sample runs with X-NUCLEO-53L0A1 stacked on any board with a matching Arduino connector. For this example, we use a ST Nucleo F429ZI board.
west build -b nucleo_f429zi samples/shields/x_nucleo_53l0a1