Constant PEAT_SERVICE_UUID_16BIT 

pub const PEAT_SERVICE_UUID_16BIT: u16 = 0xA1B2;

Peat BLE Service UUID (16-bit short form)

Derived from the first two bytes of the 128-bit UUID (0xA1B2 from a1b2c3d4). Used for space-constrained advertising to fit within 31-byte limit.