MIKROE-2677

      IR Sense click PID: MIKROE-2677 Weight: 22 g     IR Sense click 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. IR Sense cilck 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 it works 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  Input Voltage  3.3V  Click board size  S (28.6 x 25.4 mm)  Pinout diagram This table shows how the pinout on IR Sense click 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  Programming Code examples for IR Sense click, written for MikroElektronika hardware and compilers are available on Libstock. Code snippet The following code snippet shows the main loop of the IR Sense click example, which reads data every few second and then displays it via UART. 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 while( 1 ) { Delay_ms (5000); IRGRID2_readAll (readData); //Upper area sensor value UART2_Write_Text ("rn "); tempValue = readData [5] + ( readData [6]