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The 16 digits data stream will be displayed in the
following format :
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Each digit indicates the following status :
D15
Start Word
D14
4
D13
When send the PM2.5 data = 1
When send the %RH data = 2
When send the Temp. data = 3
D12, D11
Annunciator for Display
D10
Polarity
0 = Positive
D9
Decimal Point(DP), position from right to the
left
0 = No DP, 1= 1 DP, 2 = 2 DP, 3 = 3 DP
D8 to D1
Display reading, D1 = LSD, D8 = MSD
For example :
D0
End Word
RS232 FORMAT : 9600, N, 8, 1
Baud rate
Parity
Data bit no.
Stop bit
µg/m^3 = H0
℉ = 02
If the display reading is 1234, then D8 to
D1 is : 00001234
9600
No parity
8 Data bits
1 Stop bit
% RH = 04
1 = Negative
22
℃ = 01
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