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AS7261 − Detailed Descriptions

In the figure below, numeric values may be specified with no

leading prefix, in which case they will be interpreted as

decimals, or with a leading “0x” to indicate that they are

hexadecimal numbers, or with a leading “‘b” to indicate that

they are binary numbers. The commands are loosely grouped

into functional areas. Texts appearing between angle brackets

(‘<‘ and ‘>‘) are commands or response arguments. A carriage

return character, a linefeed character, or both may terminate

commands and responses. Note that any command that

encounters an error will generate the “ERROR” response shown,

for example, in the NOP command at the top of the first table,

but has been omitted elsewhere in the interest of readability

and clarity.

Figure 32:

AT Commands

Command

Response

Description/Parameters

XYZ Calibrated Data with Its Derivatives

ATXYZC

<X_cor_value>,

<Y_cor_value>,

<Z_cor_value> OK

Read calibrated X, Y, and Z data. Returns comma-separated

floating-point values

ATLUXC

<LUX_value> OK

Read the calibrated LUX value from the sensor.

ATCCTC

<CCT_value> OK

Read the calibrated CCT value from the sensor.

ATSMALLXYC

<smallX_value>,

<smallY_value> OK

Read calibrated x and y for CIE 1931 color gamut. Returns

comma separated floating-point values (5 decimal places).

ATUVPRIMEC

<Uprime_value>,

<Vprime_value>,

<U_value>,

<V_value> OK

Read calibrated u’, v’ and u, v for CIE 1976 color gamut.

Returns comma separated floating-point values (5 decimal

places).

ATDUVC

<DUV_value> OK

Read calibrated Duv for CIE 1976-color gamut. Returns

comma separated floating-point values (5 decimal places).

Spectral Data per Channel

ATXYZR

<X_value>, <Y_value>,

<Z_value> OK

Read raw X, Y, and Z data. Returns comma-separated 16-bit

integers.

ATDATA

<X_value>, <Y_value>,

<Z_value>,

<Spec_reg_NIR>,

<Spec_reg_D>,

<Spec_reg_C> OK

Read raw X, Y, Z and NIR data as well as two special internal

registers D, & C. Returns comma-separated 16-bit integers.

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