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#208485
I am using three AS7265x breakout board for spectral identification.

I've three boards.
The board is behind a glass.
The main point its how to calibrate.
I put a mirror to take a measure with the full light spectrum, but I've different, values with each board.

In the data sheet of AS7265x indicates that The components AS72651, AS72652
and AS72653 are pre-calibrated with a specific light source.

AMS Device Type: 0x40
AMS Hardware Version: 0x41
Major Firmware Version: 0xC
Patch Firmware Version: 0x0
Build Firmware Version: 0x0


AMS Device Type: 0x40
AMS Hardware Version: 0x41
Major Firmware Version: 0xC
Patch Firmware Version: 0x0
Build Firmware Version: 0x0

But when I take the measures using the mirror
Board_1
10479,1894,3835,1779,1767,4932,489,593,541,247,472,128,2037,614,454,709,559,547,␍␊
10482,1895,3836,1780,1767,4933,489,593,541,247,472,128,2037,615,454,709,559,548,␍␊
10482,1895,3835,1778,1766,4932,489,593,541,247,473,128,2038,586,454,709,559,548,␍␊

Board_2
8492,1427,4053,1232,2007,5290,543,697,566,244,635,119,1932,622,370,727,858,703,␍␊
8491,1427,4053,1232,2006,5289,543,696,567,244,635,119,1931,633,370,726,859,703,␍␊
8492,1427,4053,1233,2007,5290,543,696,566,244,635,119,1931,622,369,727,859,703,␍␊

There is any explanation ? Is necessary to calibrate ?
#208570
Hi Pac_zaragoza,

Have you tried removing the glass and re-testing? If not, give that a try and see if it helps. Also, are you using the onboard LEDs or have you added your own? Finally, which example(s) from the Arduino Library have you tested with?
#208611
Thanks for your answer.
Yes we've tried with out the glass, and we are using the leds onboard

This is the test with out the glass.

(1)11889.7 7887.28 9869.96 4598.11 4530.43 5125 898.93 949.52 606.4 204.51 770.8 318.63 7988.14 2231.39 706.77 475.38 1166.92 2838.65
(2)9435.03 7273.13 10752.7 4625.85 5140.31 5990.58 959.49 1020.24 699.81 221.45 909.99 344.62 8208.72 2166.57 676.35 472.3 1654.27 3012.95

Still been quite different for the same situation.
#209234
I'm still working to find , the difference.

The example I'm using is Example2_basicReadingsWithLeds, but I've tried with all the examples.
And each device give a different value
With and without glass
All the tests were made with the same elements.

Is there any way to calibrate ? a patron to compare ??