Library Description

The library initializes and defines the I2C or SPI bus driver and drivers that offer a choice for writing data in registers and read data from registers. The library includes function for read X/Y/Z axis data and function for Tap detection interrupt. The user also has the function for start configuration chip for measurement and function for read interrupt state.

Key functions:

• void accel13_startCtrlConfig() - Start configuration module
• void accel13_getAxisData(T_ACCEL13_AXIS *axis) - Axis data
• void accel13_getTapStatus(T_ACCEL13_TAP *tapStatus) - Get Tap status

Examples description

The application is composed of three sections :

• System Initialization - Initializes I2C or SPI module and sets necessary GPIO pins
• Application Initialization - Initializes driver init, Test communication, start configuration chip for measurement and reads Temperature
• Application Task - Reads Accelerometer data and detects tap on the axis

Note: The example is the basic functionality of the IIS2DLPC sensor, it is possible to read the acceleration data and detect Tap on all 3 axes. For other settings and improvements in reading accuracy, you need to further set up the registers and set the sensor to your conditions.

void applicationTask()
{
    /* Reads Accel data */
    accel13_getAxisData(&axis);

    mikrobus_logWrite("---- Accel axis data ----", _LOG_LINE);
    IntToStr(axis.x, demoText);
    mikrobus_logWrite("* X : ", _LOG_TEXT);
    mikrobus_logWrite(demoText, _LOG_LINE);
    
    IntToStr(axis.y, demoText);
    mikrobus_logWrite("* Y : ", _LOG_TEXT);
    mikrobus_logWrite(demoText, _LOG_LINE);
    
    IntToStr(axis.z, demoText);
    mikrobus_logWrite("* Z : ", _LOG_TEXT);
    mikrobus_logWrite(demoText, _LOG_LINE);
    mikrobus_logWrite("-------------------------", _LOG_LINE);
    Delay_ms( 300 );
    
    /* Detections Tap on the axis */
    accel13_getTapStatus(&tap);
    if(tap.tap_x == 0x01)
    {
        mikrobus_logWrite("---- Tap on the X axis ----", _LOG_LINE);
    }
    if(tap.tap_y == 0x01)
    {
        mikrobus_logWrite("---- Tap on the Y axis ----", _LOG_LINE);
    }
    if(tap.tap_z == 0x01)
    {
        mikrobus_logWrite("---- Tap on the Z axis ----", _LOG_LINE);
    }
}

Other mikroE Libraries used in the example:

• I2C library
• SPI library
• UART library
• Conversions 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.