Manual

User manual/ Technical information
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0M4!...0M8!: reserved.
After using this command, the sensor will enter a sleep mode after the measurement to save
power consumption. After using "continuous measurement command 0R0!...0R9!", it will exit the
low power consumption state.
For the definition of reply, please refer to "Start measurement command 0M!"
Read
measurement
value
0D0!...0D9!
Send 0D0!
Response 0+27.65+65.81+100000+5000<CR><LF>
Description
This command is used to obtain a set of measurement data in the sensor. The sensor responds
with the measurement data. If all the desired measurement data is not returned in 0D0!, you can
continue to send 0D1!, 0D2!, etc., until all the measurement data is received.
The response format is defined as follows:
a<values><CR><LF>
a Device address:0
<values> This the real measurement value.
pd.d
p is the polarity symbol.
the first d is the number before the decimal point.
the second d is the data after the decimal point.
Note that the decimal point is not necessary.
In this example, "+27.65" is the first measurement data, "+65.81" is the
second measurement data, "+100000" is the third measurement data,
and "+5000" is the fourth measurement data.
Continuous
measurement
command
0R0!..0R9!
Send 0R0!
Response 0+27.65+65.81+100000+5000<CR><LF>
Description
This is different from "start measurement command 0M!", the measurement value can be
returned directly. Each "continuous measurement command" is an independent measurement
process, for example, 0R0! and 0R1! are not required before 0R2!.
0R0!: Start continuous THPL measurement: air temperature, air humidity, atmospheric pressure,
light intensity.
0R1!: Start Wind continuous measurement: minimum wind direction, maximum wind direction,
average wind direction, minimum wind speed, maximum wind speed, average wind speed.
0R2!: Start Rain measurement: accumulated rainfall, accumulated rainfall time, rainfall intensity,
maximum rainfall intensity.
0R3!: Start Dust continuous measurement: PM2.5, PM10.
0R9!: Start another Continuous measurement: heating temperature, dumping status.
0R4!...0R8!: reserved.
If the sensor was in a low-power working state before, after using this command, the sensor will