FEASA LED ANALYSER
ICT VERSION
Synchronous Serial Mode
colour Temperature (cct)
This command will instruct the LED Analyser to output the colour temperature of a LED. All
the LED data should have been previously captured.
The code for this command is 0x60 – this must be transmitted to the LED Analyser followed by
the Fiber Number of the LED to be tested. The Fiber Number is a hexadecimal number in the
range 0x01 – 0x14 (in decimal this represents numbers 1 -20). The Analyser will return 2
bytes of data – for cct.
Command Data Transmitted Data Received
Read cct 0x60 + fiber num (1byte) Cct (2bytes)
To convert the Dominant Wavelength data to a decimal number use the formula:-
cct = (byte1*256 + byte2)
Note:- The data output in all the bytes are hexadecimal numbers.
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