Field
|
Byte
|
Name
|
Value
|
STX
|
B0/B1
|
Start Code
|
0xFA 0xF0
|
ID
|
B2
|
ID
|
0xFF (fixed)
|
CONF
|
B3
|
Device Configuration
|
If bit is set, corresponding sensor is installed.
Bit 0 : VOCs sensor
Bit 1 : Humidity sensor
Bit 2 : Temperature sensor
Bit 3 : CO2 sensor
Bit 4 ~ Bit 7 : 0x00
|
CO2
|
B4/B5
|
CO2 Concentration, PPM
|
2 byte integer value
If reading is 450 then actual CO2 concentration is 450ppm
|
TEMP
|
B6/B7
|
Temperature, ℃
|
2 byte integer value
Temp = value/10
If reading is -103 then actual temperature is -10.3 ℃.
|
HUMD
|
B8
|
Humidity, %
|
1 byte integer value
Temp = value
If reading is 75 then actual, humidity is 75%.
|
VOCs
|
B9
|
VOCs
|
0x00 : Normal, 0x10 : High, 0x40 : Very High
|
CSUM
|
B10
|
Checksum
|
Check Sum = Low byte of sum (B0 + B1 … + B9)
|
ETX
|
B11
|
End of code
|
0x05
|
The person in charge
Ihn LeeTelephone
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82-7086778055Address
36 Bucheon-ro 198beon-gil, Bucheon-si, Gyeonggi-do (14557)0 / 4000
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