service_uuid: "0000FFE5-0000-1000-8000-00805f9b34fb" notify_uuid: "0000FFE8-0000-1000-8000-00805f9b34fb"
The notification you will get once subscribed to the notify_uuid above will have the following structure
| Bytes | Contents |
|---|---|
| 0,1 | Header 0xAAAA |
| 2 | Data Type : - 0xA2 (162) : hygrometer - 0xA3 (163) : hour data - 0xA4 (164) : version info |
| 3,4 | Data size in bytes (as 'n' below) |
| 5,n+4 | Data according to data type (see below) |
| n+5 | Checksum (sum of bytes 0 - n+4 modulo 256) |
| n+6 | Footer 0x55 |
Note: when two bytes are used, the big indian notation (most significant byte on the left)
The hygrometer data type is the one with the third byte value equal to 0xA2 (162), and have a data size of 6 bytes.
| Bytes | Contents |
|---|---|
| See above for first 5 bytes structure | |
| 5,6 | Temperature (to be divided by 10) |
| 7,8 | Humidity (to be divided by 10) |
| 9 | Power indicator |
| 10 | Unit (0 for Celcius) |
| See above for last 2 bytes structure |
Version Info (0xA4): string
Hour Info (0xA3): it is an array of 4 bytes: 1 entry per hour, last entry for current time with 0,1 = temperature * 10 and 2,3 = humidity * 10