The Atmocube transmits information wirelessly using BLE (Bluetooth Low Energy) messages. Any device with BLE capability, like a smartphone with the Atmocube app and e-ink screen, can receive these messages if they are within 10-15 meters of the Atmocube. This feature makes it easy to automate tasks without complicated authentication procedures. It's a convenient way to incorporate Atmocube into your automation setup.
Please note that device administrators can choose to turn off the BLE advertising using the Atmocube Configuration Tool.
v.1.3, 21-May-2023
Advertisement Packet Format
| Len |
Type |
Description |
Value |
| 2 |
0x01 |
Flags |
0x06 |
| 10 |
0x09 |
Complete local name |
0x435542455F0000
CUBE_0000
Where 0x0000 - device id - last 2 bytes of mac address in hex format
|
| 16 |
0xFF |
Manufacturer Specific Data
|
Bytes are in LE format (little-endian)
Empty values are filled with FF
| Size, bytes |
Example |
Description |
| 2 |
0xFFFF |
COMPANY_IDENTIFIER |
| 1 |
0x00 |
BLE packet version
0x01 - v1
0x02 - v2
|
| 2 |
0x0000 |
packet v1
tVOC, ppb
|
| 1 |
0x00 |
packet v2
VOC index = value * 2 + 1
0xFF - not available
0xFE - heating
|
| 1 |
0x00 |
packet v2
NOx index = value * 2 + 1
0xFF - not available
0xFE - heating
|
| 2 |
0x0000 |
PM2.5, µg/m3 x 10 |
| 2 |
0x0000 |
PM10, µg/m3 x 10 |
| 2 |
0x0000 |
Temperature, celsius x 100 |
| 2 |
0x0000 |
Relative Humidity, % x 100 |
| 2 |
0x0000 |
CO2, ppm |
|
Scan Response Packet Format
| Len |
Type |
Description |
Value |
| 24 |
0xFF |
Manufacturer Specific Data |
Bytes are in LE format (little-endian)
Empty values are filled with FF
| Size, bytes |
Example |
Description |
| 2 |
0xFFFF |
COMPANY_IDENTIFIER |
| 4 |
0x00000000 |
Barometric pressure, mbar x 100 |
| 1 |
0x00 |
Noise, dB |
| 2 |
0x0000 |
Luminocity, lux |
| 2 |
0x0000 |
PM1, µg/m3 x 10 |
| 2 |
0x0000 |
CH2O, ppb |
| 1 |
0x00 |
People count |
| 2 |
0x0000 |
CO, ppb |
| 2 |
0x0000 |
O3, ppb |
| 4 |
0x00000000 |
FW version |
| 1 |
0x00 |
Status byte
0 bit - connectable = 1
1 bit - reserved
2 bit - reserved
3 bit - reserved
4 bit - reserved
5 bit - reserved
6 bit - BLE busy status
7 bit - MQTT status
E.g.
0x80 = 10000000 - Connectable
0x01 - 00000001 - MQTT Connected
|
|
0xFFFF - Sensor is not available
0xFFFE - Sensor heating
