Sending IR data rather than white-light data

[terrillmoore]

Catena-Sketches/catena4551_test01/catena4551_test01.ino

Line 492 in b67901b

b.putLux(data[0]);

This is set up here:

Catena-Sketches/catena4551_test01/catena4551_test01.ino

Lines 267 to 269 in b67901b

	gSi1133.configure(0, CATENA_SI1133_MODE_SmallIR);
	gSi1133.configure(1, CATENA_SI1133_MODE_White);
	gSi1133.configure(2, CATENA_SI1133_MODE_UV);

This means that the first entry is "small IR". We don't want small IR as the LUX reading, we want "white" as the Lux reading.

And, in fact, this "lux sensor" is not a lux sensor, it is a W/m^2 sensor. Lux needs to be compensated for frequency. It's possible that the SI1133 does this, but it's not obvious from the datasheet. See http://www.physlink.com/Education/AskExperts/ae409.cfm for more info.

First change is to transmit element [1] rather than [0]. Second is to possibly linearize, and third is to possibly change to a proper Lux sensor .

In any case, it is a big error to transmit this with the same data format as Rohm light output, because the engineering units are not commensurate. See #39.

[chwon64]

I changed transmit element from [0] to [1] and committed this change.
I am not sure how it linearize at this moment.

[terrillmoore]

Closed by 1df74bc