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Random colors via JSON API in Segment object like "col":["r","r","r"] #4996 #5000

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Random colors via JSON API in Segment object like "col":["r","r","r"] #4996 #5000

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4e9d956
Random colors via JSON API in Segment object like col=["r","r","r"] #…
AlexeyMal Oct 11, 2025
3e2e3c9
moved the code to json.cpp as suggested by the reviewer
AlexeyMal Oct 11, 2025
a752a5e
added colValid = true;
AlexeyMal Oct 11, 2025
44e41a6
added Docstring
AlexeyMal Oct 18, 2025
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5 changes: 4 additions & 1 deletion wled00/json.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -205,7 +205,7 @@ static bool deserializeSegment(JsonObject elem, byte it, byte presetId = 0)
// JSON "col" array can contain the following values for each of segment's colors (primary, background, custom):
// "col":[int|string|object|array, int|string|object|array, int|string|object|array]
// int = Kelvin temperature or 0 for black
// string = hex representation of [WW]RRGGBB
// string = hex representation of [WW]RRGGBB or "r" for random color
// object = individual channel control {"r":0,"g":127,"b":255,"w":255}, each being optional (valid to send {})
// array = direct channel values [r,g,b,w] (w element being optional)
int rgbw[] = {0,0,0,0};
Expand All @@ -229,6 +229,9 @@ static bool deserializeSegment(JsonObject elem, byte it, byte presetId = 0)
if (kelvin == 0) seg.setColor(i, 0);
if (kelvin > 0) colorKtoRGB(kelvin, brgbw);
colValid = true;
} else if (hexCol[0] == 'r' && hexCol[1] == '\0') { // Random colors via JSON API in Segment object like col=["r","r","r"] · Issue #4996
setRandomColor(brgbw);
colValid = true;
} else { //HEX string, e.g. "FFAA00"
colValid = colorFromHexString(brgbw, hexCol);
}
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