IR Sense Click Board™

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

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