Chapter 6 - Sensor-Specific Messages; Uplink Messages; Temperature And Humidity Event (0X0D) - Multitech RBS3010NA0EBN0 User Manual

Chapter 6 – Sensor-Specific Messages

Uplink Messages

The uplink message (sensor to web application) specific to the sensor is defined in following table. The common
uplink messages are not included in this section (see Common Messages).

Temperature and Humidity Event (0x0D)

Byte Description
0 Temperature/Humidity Event Payload (see Temperature/Humidity Event Payload Definitions)
1 Current temperature in degrees Celsius with sign bit
2 First decimal of current temperature (0-9) in the most significant 4-bits.
3 Humidity in % relative humidity (0-100%)
4 First decimal of relative humidity (0-9) in the most significant 4-bits.
The temperature and humidity values in the above table are broken out as whole units and the first decimal point.
For example, if the current temperature is 26.5 degrees C, byte 1 would be 0x1A and byte 2 would be 0x50. If the
humidity is 22.4%, byte 3 would be 0x16 and byte 4 would be 0x40.
The most significant bit in the temperature field (byte 1) is the sign bit where a '1' represents a negative
temperature and a '0' represents a positive temperature. Thus, if the reported temperature is -26.5 degrees C,
byte 1 would be 0x9A (0x1A with the MSB set) and byte 2 would be 0x50. Note that this is not two's compliment
notation, it is a sign bit followed by an unsigned 7-bit value.
The temperature/humidity event is defined in the following table.
Event payload
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
The current temperature field in the uplink message is the current temperature in degrees Celsius. Values of 0x7f
(high side) and 0x80 (low side) are considered out of range.
The humidity field in the uplink message is the air humidity percentage which can range from 0-100%.
®
Radio Bridge LoRaWAN Wireless Sensor Air Temperature Humidity Sensor User Guide
Description
Periodic report
Temperature has risen above upper threshold
Temperature has fallen below lower threshold
Temperature report on change increase
Temperature report on change decrease
Humidity has risen above upper threshold
Humidity has fallen below lower threshold
Humidity report on change increase
Humidity report on change decrease
SENSOR-SPECIFIC MESSAGES
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