IR Sense Click Board™

Product Code: MIKROE-2677

The IR Sense Click Board™ carries the AK9750 quantum-type IR sensor. The click is designed to run on a 3.3V power supply. It communicates with the target microcontroller over I2C interface, with additional functionality provided by the INT pin on the mikroBUS™ line. The IR Sense Click Board™ detects the temperature of objects and people in motion. It can also detect a human body that remains still. So, it distinguishes heat regardless of the fact whether or not an object is moving. AK9750 FEATURES The AK9750 is an ultra-low power and compact infrared-ray (IR) sensor module. It is composed of four quantum IR sensors and an integrated circuit (IC) for characteristic compensation. An integral analog-to-digital converter provides 16-bits data outputs. Additional integrated features include a field of view limiter and an optical filter. How Does The IR Sense Click Board™ Work? The IR sensors are arranged as shown. Each sensor detects the diagonal area, as indicated in the image below: The observable area of the four sensors is as you see it on the silk of the IR Sense Click Board™.

SPECIFICATIONS Type Temperature & humidity Applications Detecting heat with the four IR sensors On-board modules AK9750 IR sensor Key Features Low current consumption: Max. 1µA in Power down Mode; Integrated temperature sensor, 16-bits Digital Outputs to I2C bus 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 IR Sense Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns). Notes Pin Pin Notes ALR 1 AN PWM 16 NC NC 2 RST INT 15 INT Interrupt Power down pin PDN 3 CS TX 14 NC NC 4 SCK RX 13 NC NC 5 MISO SCL 12 SCL SCL I2C line NC 6 MOSI SDA 11 SDA SDA I2C line Power supply +3.3V 7 3.3V 5V 10 NC Ground GND 8 GND GND 9 GND Ground JUMPERS AND SETTINGS Designator Name Default Position Default Option Description A0 A0 Left 0 Selection of I2C address bit 0 A1 A1 Left 1 Selection of I2C address bit 1