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ماژول CJMCU-533 ماژول فاصله سنج لیزری است که در قلب خود سنسور VL53L3CX را جای داده و بر اساس تکنولوژی (Time-of-Flight (ToF ساخته شدهاست. این سنسور کوچکترین سنسور ToF موجود در بازار بوده که تا محدوده 3 متر را با دقت بالایی اندازهگیری میکند.
این ماژول می تواند چندین شی را در محدوده زاویه دید معمول خود که 25 درجه است را شناسایی کند و از طریق اینترفیس I2C با سایر میکروکنترلرها ارتباط برقرار کند.
مستندات:
دیتاشیت VL53L3CX
Description:
VL53L3CX combines high-performance proximity and ranging sensors with multi-target distance measurement and automatic smudge correction functions. The miniature reflowable package integrates a single photon avalanche diode (SPAD) array and physical infrared filter to achieve the best ranging performance under various ambient lighting conditions, and is equipped with various cover glass windows. The VL53L3CX combines the advantages of a high-performance proximity sensor, excellent short-distance linearity, and distance measurement capabilities up to 3 m. VL53L3CX can also detect different objects in the field of view (FoV) through deep understanding. Allows the crosstalk immunity of the cover glass to exceed 80 cm, and has a dynamic smudge compensation function.
Application:
Service robots and vacuum cleaners (wall following and fast obstacle detection)
Sanitary (robust user detection whatever the target reflectance)
Smart buildings and smart lighting (user detection to wake up devices)
IoT (user and object detection)
Laser assisted autofocus (AF): enhances the camera AF system speed and robustness, especially in difficult scenes (low light and low contrast); ideal
companion for phase-detection autofocus (PDAF) sensors.
Video focus tracking assistance
Features:
Fully integrated miniaturized module
Transmitter: 940 nm invisible laser (VCSEL) and its analog driver
Low-power microcontroller running advanced digital firmware
Fast and accurate ranging
Based on histogram technology
Up to 300 cm + detection range at full field of view (FoV)
Can cover glass crosstalk and fingerprint smudges at a long distance
Dynamic fingerprint smudge compensation
Short distance, high precision linear
Multi-target detection and distance measurement
Typical full field of view: 25°
Easy to integrate
Reflowable components
Provides crosstalk calibration between parts or general shapes
Single power supply
Can be matched with various types of glass cover materials
I2C interface (up to 1 MHz)
for Xshutdown (reset) and interrupt GPIO to optimize ranging operation