User's Guide

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4.6.2 HTU21D
Field
PreId Temperature Humidity
Length
1 byte 2 bytes 2 bytes
PreId: The byte configured as part of the setting
Temperature: is reported as a 14-bit value, aligned towards msb. Before converting the
value to a temperature reading, the 2 least significant bits should be set to 0.
Humidity: is reported as a 12-bit value, aligned towards msb. Before converting the
value to a humidity reading, the 4 least significant bits should be set to 0.
Please refer to the datasheet of the HTU21D for details on how to convert the values
into temperature and humidity.
4.6.3 RSSI
Field
PreId
Neighbor 1 Neighbor 2 Neighbor 3 Neighbor 4 Neighbor 5
NodeId RSSI NodeId RSSI NodeId RSSI NodeId RSSI NodeId RSSI
Length
1 byte 2 bytes 1 byte 2 bytes 1 byte 2 bytes 1 byte 2 bytes 1 byte 2 bytes 1 byte
In each transmission, there will be up to 5 neighbors being reported. In situations where
there are more than 5 neighbors in the list, the neighbors will be reported cyclically in
chunks of 5 neighbors.
The RSSI value is given in –dBm.
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