LightRanger 5 Click Board™

Product Code: MIKROE-4592

How Does The LightRanger 5 Click Board™ Work? The LightRanger 5 Click Board™ as its foundation uses the TMF8801, an actual direct time-of-flight (ToF) sensor system in a single modular package from AMS-TAOS. It offers highly accurate depth accuracy detection through a sub-nanosecond light pulse and an antialiasing "stop-watch" method to measure the round-trip time of the pulse. It comes with an integrated microprocessor (Cortex M0) featured with all algorithms included on-chip with no need for external optics and an emitter that offers high dynamic range and detection sensing measurements from 20 to 2500 mm distances. Alongside these features, it also provides single-zone detection of an object irrespective of color, reflectivity, and texture. The TMF8801 utilizes highly sensitive Single-Photon Avalanche Diode (SPAD) detection with fast, compact time-to-digital converters to make highly accurate distance measurements within ±5%. It is capable of operation in dark environments and the presence of sunlight.

A built-in histogram is featured to detect cover glass and report object distances, operating with the highest Signal-to-Noise Ratio (SNR) while compensating for dirt and smudges contaminants on a product cover glass to produce artifact-free measurement. The histogram delivers dynamic cover glass calibration, and crosstalk compensation and background light noise are minimized through on-chip sunlight rejection filters. The LightRanger 5 Click Board™ communicates with MCU using the standard I2C 2-Wire interface supporting Fast Mode operation with a clock frequency up to 1MHz. Also, it provides the possibility of the device Power-Up feature (Enable) routed to the CS pin of the mikroBUS™ socket, interrupt feature on the INT pin of the mikroBUS™ to optimize ranging operation, and two pins on the RST and PWM pins of the mikroBUS™ socket used as a general GPIO output signal. The LightRanger 5 Click Board™ can be operated only with a 3.3V logic voltage level. The board must perform appropriate logic voltage level conversion before use with MCUs with different logic levels. However, the Click board™ comes equipped with a library containing functions and an example code that can be used, as a reference, for further development. SPECIFICATIONS Type Optical Applications Can be used for presence (object) detection, distance measurement, industrial ranging, inventory control, optical switch, and many other applications. On-board modules TMF8801 - dToF (direct time of flight) optical distance sensor achieving up to 2500mm target detection distance from AMS-TAOS Key Features Direct ToF technology with high sensitivity SPAD detection, fast Time-to-Digital Converter (TDC) architecture, enables dark and sunlight environment distance measurement within ±5%, 20mm to 2500mm distance sensing, and more. Interface I2C Compatibility mikroBUS Click board size S (28.6 x 25.4 mm) Input Voltage 3.3V PINOUT DIAGRAM This table shows how the pinout of the LightRanger 5 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns). Notes Pin Pin Notes NC 1 AN PWM 16 IO1 General Purpose I/0 General Purpose I/0 IO0 2 RST INT 15 INT Interrupt Enable/Shutdown EN 3 CS RX 14 NC NC 4 SCK TX 13 NC NC 5 MISO SCL 12 SCL I2C Clock NC 6 MOSI SDA 11 SDA I2C Data Power Supply 3.3V 7 3.3V 5V 10 NC Ground GND 8 GND GND 9 GND Ground ONBOARD SETTINGS AND INDICATORS Label Name Default Description LD1 PWR - Power LED Indicator LIGHTRANGER 5 CLICK ELECTRICAL SPECIFICATIONS Description