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InfiniTime/doc/MotionService.md
Graham Jones c2c53bc6ab
bma421: Change acceleration values to 'binary milli-G' units
Co-authored-by: FintasticMan <finlay.neon.kid@gmail.com>
2024-02-11 20:46:26 +01:00

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# Motion Service
## Introduction
The motion service exposes step count and raw X/Y/Z motion value as READ and NOTIFY characteristics.
## Service
The service UUID is **00030000-78fc-48fe-8e23-433b3a1942d0**
## Characteristics
### Step count (UUID 00030001-78fc-48fe-8e23-433b3a1942d0)
The current number of steps represented as a single `uint32_t` (4 bytes) value.
### Raw motion values (UUID 00030002-78fc-48fe-8e23-433b3a1942d0)
The current raw motion values. This is a 3 `int16_t` array:
- [0] : X
- [1] : Y
- [2] : Z
The three motion values are in units of "binary milli-g", where 1g is represented by a value of 1024.