Ranging sensor to unlock new applications for IoT

With its small form factor of 4.4 x 2.4 x 1mm, the VL53L0 is a small ToF (Time-of-Flight) module, and integrates a 940nm VCSEL light source, a SPAD photon detector, and an advanced microcontroller to manage the complete ranging function.

Using light emitted at 940nm, coupled to infrared filters, the VL53L0 delivers ambient light immunity and is now invisible to the human eye. The embedded microcontroller and digital algorithms minimise both the host processing and system power consumption in the final application.

“ST technology advancements in Time-of-Flight ranging sensors are enhancing the experience for millions of consumers, revolutionising the way they take pictures and videos with their smartphones and tablets,” said Eric Aussedat, General Manager of ST’s Imaging Division. “ST introduced the first fully integrated Time-of-Flight ranging sensor to the market in 2014, which was then successfully adopted by several leading OEMs for the laser assisted auto-focus function. Today, with the VL53L0, our next generation ST is redefining the benchmark in ranging performance and creating the opportunity to develop new applications in robotics and the IoT.”

The VL53L0 is able to perform a full measurement operation in one image frame, typically less than 30ms, at distances beyond two metres. With such performance levels the camera system can achieve instant focus in both video and burst modes, even in low light or low contrast scenes, which are especially challenging for camera systems not equipped with FlightSense technology.

ST’s VL53L0 module is simple to use (six effective pins), is I2C based, and comes with a full package of API drivers and documentation for fast and simple integration. The module package is reflowable, RoHS compliant, and fully compatible with a large selection of cover glass and design artworks.