Hence the library function calculates lux values from both linear lines regardless, and simply take the max. You can also calculate the CHI/CH0 ratio first, and ...
A true lux measurement would require measuring each wavelength of light separately and weighting it to match the sensitivity of the human eye.
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So, my conclusion is that the calculated lux for the TSL2591 is wrong for the kind of light levels I am using it for (basically up to full sun).
For an industrial application, I've to quantify the ambient luminosity to calculate another sensor's uncertainty of measurement. My code is ...
I calculate the lux with ir and full spectrum but what exactly is ir, full spectrum and visible light? Is it the wavenumber (m^-1? cm^-1?) or ...
The TSL2561 gives a reading of 216 lux in the same test setup, which is an 8% error, quite acceptable given the cost of the device ($6 vs $9500) ...
I calculate the lux with the finction : uint32_t lum = tsl.getFullLuminosity (); uint16_t ir, full; ir = lum >> 16; full = lum & 0xFFFF; Serial.
Hi, I'm using one of the adafruit light sensors to measure light at night: Adafruit TSL2591 So far it seems great.
Hi, I would like to know how to get the irradiance measurement from the TSL2591. I mean the sensor gives me LUX but I need w/m2 in the visible ...
I want to fix the illumination of environments where different colors are used, and just change the colors. The most powerful PWM was required ...