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Re:Blog series on building an air sensor with Arduino by moefh on Monday January 02, 2023 @03:54PM (#34223506)
[Note: I'm not the author]

0x173 doesn't fit in a byte. As the text explains, there are two validation bytes; the first one gets the high 8 bits ("the high byte") of 0x173 (which is 0x01) and the second one gets the low eight bits (0x73).

Re:Blog series on building an air sensor with Arduino by denvrede on Tuesday January 03, 2023 @04:04AM (#34229426)
Ah! Ok got it. Thought it meant some kind of lower and upper "limits". But that makes more sense. Thank you! Just getting into embedded / MC stuff.