UUID Reference

Service UUIDs

Service	UUID	Notes
SAF Tehnika (NEW)	`0000fce0-0000-1000-8000-00805f9b34fb`	Firmware v1.2.0+
SAF Tehnika (OLD)	`f0cd1400-95da-4f4b-9ac8-aa55d312af0c`	Pre-v1.2.0
GAP Service	`00001800-0000-1000-8000-00805f9b34fb`	Standard BLE
Device Information	`0000180a-0000-1000-8000-00805f9b34fb`	Standard BLE
Battery Service	`0000180f-0000-1000-8000-00805f9b34fb`	Standard BLE
Nordic DFU	`0000fe59-0000-1000-8000-00805f9b34fb`	Firmware updates

GAP Service (0x1800)

Characteristic	UUID	Type
Device Name	`00002a00-0000-1000-8000-00805f9b34fb`	String
Appearance	`00002a01-0000-1000-8000-00805f9b34fb`	u16

Device Information Service (0x180a)

Characteristic	Short UUID	Type
System ID	`0x2a23`	raw
Model Number	`0x2a24`	String
Serial Number	`0x2a25`	String
Firmware Revision	`0x2a26`	String
Hardware Revision	`0x2a27`	String
Software Revision	`0x2a28`	String
Manufacturer Name	`0x2a29`	String

Battery Service (0x180f)

Characteristic	Short UUID	Type
Battery Level	`0x2a19`	u8 (0-100%)

SAF Tehnika Service

Read Characteristics

Characteristic	UUID	Purpose
Sensor Settings State	`f0cd1401-95da-4f4b-9ac8-aa55d312af0c`	Device settings
Calibration Data	`f0cd1502-95da-4f4b-9ac8-aa55d312af0c`	Calibration values
Current Readings (Basic)	`f0cd1503-95da-4f4b-9ac8-aa55d312af0c`	Basic readings
Current Readings (Aranet2)	`f0cd1504-95da-4f4b-9ac8-aa55d312af0c`	Aranet2/Radiation
Total Readings	`f0cd2001-95da-4f4b-9ac8-aa55d312af0c`	History count
Read Interval	`f0cd2002-95da-4f4b-9ac8-aa55d312af0c`	Interval in seconds
History V1	`f0cd2003-95da-4f4b-9ac8-aa55d312af0c`	History (notify)
Seconds Since Update	`f0cd2004-95da-4f4b-9ac8-aa55d312af0c`	Last update age
History V2	`f0cd2005-95da-4f4b-9ac8-aa55d312af0c`	History (read)
Current Readings (Detail)	`f0cd3001-95da-4f4b-9ac8-aa55d312af0c`	Extended readings
Current Readings A	`f0cd3002-95da-4f4b-9ac8-aa55d312af0c`	Alternative format
Current Readings A (Aranet2)	`f0cd3003-95da-4f4b-9ac8-aa55d312af0c`	Aranet2 only

Write Characteristic

Characteristic	UUID	Purpose
Command	`f0cd1402-95da-4f4b-9ac8-aa55d312af0c`	Write commands

Nordic DFU Service (0xfe59)

Characteristic	UUID	Purpose
Secure DFU	`8ec90003-f315-4f60-9fb8-838830daea50`	Firmware update

Rust UUID Helper

use uuid::{uuid, Uuid};

// Convert 16-bit short UUID to full 128-bit UUID
fn normalize_uuid_16(short: u16) -> Uuid {
    Uuid::from_u128(
        (short as u128) << 96 | 0x0000_1000_8000_00805f9b34fb
    )
}

// Define UUIDs as constants
const SERVICE_SAF_TEHNIKA: Uuid = uuid!("0000fce0-0000-1000-8000-00805f9b34fb");
const CHAR_CURRENT_READINGS: Uuid = uuid!("f0cd3001-95da-4f4b-9ac8-aa55d312af0c");

Made with ❤️ by Cameron Rye