Adeunis RF ARF8180AA, User Manual

Page: 54 / 86

EN
LoRaWAN TEMP - Guide utilisateur / User guide version V2.0.1
54 of 86
2.1.4 REPLI mode
The product enters this very low consumption mode following the detection of a level of battery that is too low. In this mode the product wakes
up every 5 seconds to make the red LED flash twice.
The replacement of the battery (if the product is a replaceable battery version) followed by the application of the magnet takes the product out
of this mode to return it to the operating mode.
2.2. Operating modes
2.2.1 Periodic transmission
Product on stand-by
Send frame 0x43
Yes
No
Average probe 2 tem-
perature samples
Average probe 1 tem-
perature samples
Probe 1
temperature measure-
ment and storage
Probe 2
temperature measure-
ment and storage
Transmission
period reached
?
Yes
No
The product allows the measurement and the periodic transmission of the values of the sensors according to the following diagram:
Sampling
period reached
?
The product allows you to define a super-sampling to send, not an instantaneous
value but, an averaged value at the time of the transmission period defined.
The settings associated with this mode of operation are:
• The transmission period (register 301).
• Potential user identifiers for the sensors (registers 320 and 322).
• The super-sampling factor (register 333).
A complete list of the registers can be found in paragraph 3.4.
E.g.:
Register Value
encoding
Value Result
S301 Decimal 6
Periodic mode with a period of
6x10min = 60 minutes
S320 Hexadecimal 0xD0 Identifier of the probe 1 set to 0xD
S322 Hexadecimal 0x80 Identifier of the probe 2 set to 0x8
S333 Decimal 4
The number of samples to be
measured and stored between two
transmissions is 4
In this example:
• The product transmits every hour (6x10min=60min)
• As the super-sampling factor is 4, there will be a measurement and a storage
operation every 60/4=15 minutes
• The value sent will therefore be an average of 4 temperatures collected every 15
minutes
Caution: averaging can reduce the importance of some peaks (maximum values) if
the temperature changes quickly.
Take care also over the values of the period and the super-sampling because they
have an impact on the consumption of the product. In the extreme a 10 minute
transmission periodicity and a factor of super-sampling of 10 leads to a measure-
ment every minute.