Library Description

The library covers all the necessary functions that enables the usage of the Thermno 9 Click board. It holds functions that allow full control of the device to the user. User can calibrate the device, read temperature or read raw values if necessary.

Key functions:

• void thermo9_calibation ( ); - Function resets and calibrates the device in order for it to work properly.
• float thermo9_read_temp ( ); - Function is used to read temperature in degree centigrade.
• uint32_t thermo9_read_adc ( ); - Function is used to read ADC data.

Examples description

The application is composed of three sections :

• System Initialization - Initializes GPIO, SPI and LOG structures.
• Application Initialization - Initalizes SPI driver, calibrates the device and makes an initial log. Calibration function must be used once in order for it to work properly!
• Application Task - (code snippet) This example shows capabilities of Thermo 9 click by measuring temperature every 3 seconds and displaying temperature in degrres Celsius via USART terminal.

temp_val = thermo9_read_temp( );

    mikrobus_logWrite( " Temperature: ", _LOG_TEXT );
    log_display( temp_val );
    mikrobus_logWrite( deg_cel, _LOG_LINE );

    mikrobus_logWrite( "---------------------", _LOG_LINE );
    Delay_ms( 3000 );

Additional Functions :

• void log_display( float value ) - Function displays readings as floating point value with two decimal places.

Other mikroE Libraries used in the example:

• SPI
• I2C
• UART
• Conversins

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.