Uplink Data

This chapter describes the reported data of the device.

Item Channel Type Byte Description
Power On ff 0b 1 Device is on
Protocol Version ff 01 1 Example: 01=V1
Hardware Version ff 09 2 Example: 03 10 = V3.1
Software Version ff 0a 2 Example: 03 01 = V3.1
Device Type ff 0f 1

00: Class A, 01: Class B, 02: Class C, 03: Class C to B
Serial Number ff 16 8 16 digits
Sensor Status ff 18 2

Byte 1: 00

Byte 2: 0=disabled, 1=enabled for every bit
Bit Sensor
0 Temperature
1 Humidity
4

CO2
Battery Level 01 75 1 UINT8, Unit: %
Temperature 03 67 2 INT16/10, Unit: °C
Humidity 04 68 1 UINT8/2, Unit: %RH
CO2 07 7d 2 UINT16, Unit: ppm
Historical Data 20 ce 9 Byte 1-4: Data unix timestamp, UINT32, Unit: s

Byte 5-6: Temperature, INT16/10, Unit: °C

Byte 7: Humidity, UINT8/2, Unit: %RH

Byte 8-9: CO2, UINT16, Unit: ppm

Basic Information

The device will report a basic information packet whenever joining the network.

Example:
ff0bff ff0101 ff166136c40091605408 ff090200 ff0a0101 ff0f00 ff180003
Channel Type Value
ff 0b ff
ff 01 Protocol version: 01=V1
ff 16 SN: 6136c40091605408
ff 09 Hardware version: 0200=V2.0
ff 0a Software version: 0101=V1.1
ff 0f 00: Class A
ff 18 03=>0000 0011=Temperature and Humidity sensors enable

Periodic Report

The device supports the sensor data according to reporting interval.
017564 03671001 046871 077d1303
Channel Type Value
01 75 Battery Level: 64 => 100%
03 67 Temperature: 1001=> 0110 = 272/10=27.2°C
04 68 Humidity: 71 => 113/2=56.5 %RH
07 7d CO2: 13 03 => 03 13 = 787 ppm

Alarm Report

The device supports to report below types of alarm report packets.
  1. Temperature threshold alarm: report when threshold alarm is triggered.
    03671001
    Channel Type Value
    03 67 Temperature: 1001=> 0110 = 272/10=27.2°C
  2. CO2 threshold alarm: report when the CO2 exceeds the Bad threshold.
    077d0a06
    Channel Type Value
    07 7d 0a 06 => 06 0a=1546 ppm
  3. Low battery level alarm: report when the battery level drops to 1%.
    017501
    Channel Type Value
    01 75 01=1%

Historical Data

The device will report retransmission data or stored data as below example.

20ce 0d755b63 0801 57 d302
Channel Type Time Stamp Value
20 ce 0d 75 5b 63 => 63 5b 75 0d=1666938125s

Temperature: 0801=>0108=264/10=26.4 °C

Humidity: 57=>87/2=43.5%RH

CO2: d3 02 => 02 d3 = 723 ppm