Library Description

The library initializes and defines the I2C bus driver and drivers that offer a choice for writing data in register and reads data form register. The library includes function for read Temperature data in C and output current of the IR sensor in pA. The user also has the function for default configuration chip for measuremen, function for software reset device, function for get Interrupt state.

Key functions:

• float irsense3_getTemperature() - Temperature data.
• float irsense3_getIRSensorData() - Output currentof the IR sensor.
• uint8_t irsense3_humanApproachDetect() - Human approach detection.

Examples description

The application is composed of the three sections :

• System Initialization - Initialization I2C module and set INT pin as INPUT.
• Application Initialization - Initializes driver init, software reset and default configuration chip for measurement.
• Application Task - Reads temperature data, outputs current of IR Sensor and checks for human approach.

void applicationTask()
{
    float Temperature;
    float IR_Current_data;
    char demoText[ 50 ];
    uint8_t fDetect;

    /* Detection Object */
    fDetect = irsense3_humanApproachDetect();
    if (fDetect != 0)
    {
       mikrobus_logWrite(" Human Approach detected !!!", _LOG_LINE);
       Delay_1sec();
    }
    
    /* Output current of IR sensor */
    IR_Current_data = irsense3_getIRSensorData();

    FloatToStr(IR_Current_data, demoText);
    mikrobus_logWrite("--- IR current data: ", _LOG_TEXT);
    mikrobus_logWrite(demoText, _LOG_TEXT);
    mikrobus_logWrite(" pA", _LOG_LINE);

   /* Temperature */
   Temperature = irsense3_getTemperature();
   
   FloatToStr(Temperature, demoText);
   mikrobus_logWrite("--- Temperature: ", _LOG_TEXT);
   mikrobus_logWrite(demoText, _LOG_TEXT);
   mikrobus_logWrite(" C", _LOG_LINE);
   
   mikrobus_logWrite("----------------------------- ", _LOG_LINE);
   Delay_100ms();
}

Other mikroE Libraries used in the example:

• I2C Library
• Conversions library
• UART Library

Additional notes and informations

Depending on the development board you are using, you may need USB UART click, USB UART 2 click or RS232 click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.