Box – Data Packet Format lux?

[Lawrence Griffiths]

Hi not sure lux is 3 bytes all my tests indoor & outdoor
Payload in bytes – EVB parser
0efffd0f08062231 050022 0b0190 – indoor lux: 8.16
0e06ff0e08062221 051a08 0b0189 – outdoor lux: 1599.36

http://www.multitech.net/developer/software/dot-box-and-evb-software/data-packet-format/

[Mike Fiore]

Lawrence,
Does the screen on the dotbox display values in that same range?

Cheers,
Mike

[Lawrence Griffiths]

Yep reading 1x also I tested at “lux”:15728.4 still 2 bytes running v2.0.0 of box/evb

payload 0e0f03fe 0805f9ef 05ffff 0b0168

[Leon Lindenfelser]

Hi Lawrence,
The values you included in your first post appear reasonable. The lux value is two bytes not three. I’ll have to track down why the documentation indicates 3 bytes.
We configure the light sensor for 16 bits and a range up to 16000 or 0x3e80. I don’t know what would cause the ffff value. Can you tell me more about when or how the ffff occurs for you?
Kind regards,
Leon

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