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Mikroelektronika d.o.o.

Proximity 14 Click Board

Proximity 14 Click Board

SKU: MIKROE-4744
Regular price
£6.60 inc VAT
£5.60 exc VAT
Regular price £8.00 GBP Sale price
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Overview

The Proximity 14 Click Board™ is a compact add-on board that contains a close-range proximity sensing solution. This board features the VCNL36825T, a fully integrated proximity sensor from Vishay Semiconductors. It combines a high-power VCSEL (vertical-cavity surface-emitting laser) and a photodiode for proximity measurement and signal processing IC in a single package with a 12-bit ADC. It provides proximity detection in applications with highly tight space requirements through its standard I2C bus serial digital interface and comes with a programmable interrupt function.

With a range of up to 20cm (7.9"), the VCNL36825T greatly simplifies its usage in consumer and industrial applications because no mechanical barriers are required to isolate the emitter from the detector optically.

How The Proximity 14 Click Board™ Work?

The Proximity 14 Click Board™ as its foundation uses the VCNL36825T, a new fully integrated proximity sensor designed to increase efficiency and performance in consumer and industrial applications from Vishay Semiconductors. Featuring a vertical-cavity surface-emitting laser (VCSEL), the VCNL36825T combines a photodiode, signal processing IC, and 12-bit ADC in a compact SMD package, with a small 1.6mm light hole. With a range of 20cm, it also provides collision detection and features low power consumption down to 6.63µA to increase efficiency in these applications.

Proximity 14 Click Board™

The VCNL36825T simplifies the use and design-in of a proximity sensor as no mechanical barriers are required to isolate the emitter from the detector optically. The proximity sensor uses intelligent cancellation to eliminate cross-talk, while a smart-persistence scheme ensures accurate sensing and faster response time. The VCSEL wavelength peaks at 940nm and has no visible "red-tail".

The Proximity 14 Click Board™ communicates with MCU using the standard I2C 2-Wire interface to read data and configure settings, supporting Standard Mode operation with a clock frequency up to 100kHz and Fast Mode up to 400kHz. It also features an intelligent interrupt function that enables the sensor to work independently until a predefined proximity event or threshold occurs. It then sets an interrupt that requires the MCU to awaken, which reduces power consumption by eliminating polling communication traffic between the sensor and MCU.

The Proximity 14 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 Proximity
Applications Can be used for consumer and industrial applications because no mechanical barriers are required to isolate the emitter from the detector optically
On-board modules VCNL36825T - fully integrated proximity sensor from Vishay Semiconductors
Key Features Low power consumption, high precision, integrated proximity sensor with vertical-cavity surface-emitting laser, I2C configurable, interrupt feature, 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 on the Proximity 14 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

Notes Pin Mikrobus logo.png Pin Notes
NC 1 AN PWM 16 NC
NC 2 RST INT 15 INT Interrupt
NC 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

Proximity 14 Click electrical specifications

Description Min Typ Max Unit
Supply Voltage - 3.3 - V
Operating Range - - 200 mm
Proximity Resolution - 12 - bits
Operating Temperature Range -40 +25 +85 °C

 

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