Library Description

This library will allow you to read the RGB values from the Spectral 2 click board sensor.

Key functions:

• void spectral2_reset() - Function for doing a software reset on the sensor.
• void spectral2_Configuration(uint8_t _data) - This function is used for configuring different operation modes of the sensor.
• float spectral2_getCalibratedData(uint8_t dataReg) - Function for reading the RGB values depending on the parameter passed.

Examples Description

The demo application is composed of three sections:

• System Initialization - Initializes I2C module, RST pin as OUTPUT and INT pin as INPUT.
• Application Initialization - Driver initialize, reset module and configuration measurement.
• Application Task - (code snippet) - Reads the brightness value with R, G, B, I, O and V filter, every 1 second, and logs on to USBUART..

void applicationTask()
{
 mikrobus_logWrite("-------------------",_LOG_LINE);

 fData = spectral2_getCalibratedData(_SPECTRAL2_CALIBRATED_DATA_R);
 FloatToStr(fData,fText);
 mikrobus_logWrite("-- R ( Red data ) :",_LOG_TEXT);
 mikrobus_logWrite(fText,_LOG_LINE);

 fData = spectral2_getCalibratedData(_SPECTRAL2_CALIBRATED_DATA_G);
 FloatToStr(fData,fText);
 mikrobus_logWrite("-- G ( Green data ) :",_LOG_TEXT);
 mikrobus_logWrite(fText,_LOG_LINE);

 fData = spectral2_getCalibratedData(_SPECTRAL2_CALIBRATED_DATA_B);
 FloatToStr(fData,fText);
 mikrobus_logWrite("-- B ( Blue data ) :",_LOG_TEXT);
 mikrobus_logWrite(fText,_LOG_LINE);

 fData = spectral2_getCalibratedData(_SPECTRAL2_CALIBRATED_DATA_Y);
 FloatToStr(fData,fText);
 mikrobus_logWrite("-- Y ( Yellow data ) :",_LOG_TEXT);
 mikrobus_logWrite(fText,_LOG_LINE);

 fData = spectral2_getCalibratedData(_SPECTRAL2_CALIBRATED_DATA_O);
 FloatToStr(fData,fText);
 mikrobus_logWrite("-- O ( Orange data ) :",_LOG_TEXT);
 mikrobus_logWrite(fText,_LOG_LINE);

 fData = spectral2_getCalibratedData(_SPECTRAL2_CALIBRATED_DATA_V);
 FloatToStr(fData,fText);
 mikrobus_logWrite("-- V ( Violet data ) :",_LOG_TEXT);
 mikrobus_logWrite(fText,_LOG_LINE);

 Delay_1sec();
}

mikroE Libraries used in the example:

• UART Library
• Conversions Library
• C_String Library
• I2C Library

Additional notes and information

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.