Library Description

This library allows user to get ambient temperature value in the range from -256 to +255.9921875 Celsius degrees. The user also can perform the desired device configurations by using this library. The device control is allowed by using the I2C serial interface. For more details check documentation.

Key functions:

• T_THERMO11_RETVAL thermo11_writeReg( uint8_t regAddr, uint16_t dataIn ) - This function writes a 16bit data to the desired register.
• float thermo11_getTemp( uint8_t tempAddr ) - This function returns the temperature value converted to the Celsius degrees.
• T_THERMO11_RETVAL thermo11_setTemp( uint8_t tempAddr, float tempValue ) - This function allows user to set the desired temperature register on the desired value.

Examples description

The application is composed of three sections :

• System Initialization - Initializes peripherals and pins.
• Application Initialization - Initializes I2C serial interface and performs a software reset command and device configurations.
• Application Task - (code snippet) - Waits until data was ready and conversion cycle was done, and then reads the temperature and status data. The both data will be sent to the uart terminal with the limit status messages. Note : The temperature that can be measured or written to the registers is in range from -256 to 255.9921875 Celsius degrees.

void applicationTask()
{
    responseCheck = thermo11_getINT();
    while (responseCheck == _THERMO11_FLAG_IS_CLEARED)
    {
        responseCheck = thermo11_getINT();
    }

    temperature = thermo11_getTemp( _THERMO11_TEMPERATURE_REG );
    responseCheck = thermo11_checkStatus();
    
    FloatToStr( temperature, text );
    floatCut();
    mikrobus_logWrite( "* Temperature is ", _LOG_TEXT );
    mikrobus_logWrite( text, _LOG_TEXT );
    mikrobus_logWrite( logUnit, _LOG_LINE );
    
    if ((responseCheck & _THERMO11_HIGH_ALERT_FLAG) != _THERMO11_FLAG_IS_CLEARED)
    {
        mikrobus_logWrite( "* HIGH limit detection!", _LOG_LINE );
    }
    if ((responseCheck & _THERMO11_LOW_ALERT_FLAG) != _THERMO11_FLAG_IS_CLEARED)
    {
        mikrobus_logWrite( "* LOW limit detection!", _LOG_LINE );
    }
    mikrobus_logWrite( "********************************************", _LOG_LINE );
}

Additional Functions :

• floatCut - Allows to real values be rounded on two decimal places.

Other mikroE Libraries used in the example:

• Conversions
• I2C
• UART

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.