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Indoor Bike Data
Last updated: 2026-05-13 08:10
The Smart Bike Data characteristic is used by the smart bike to send real-time workout data to the app. The data format is as follows, which consists of one Flag and multiple parameters. The number of parameters is determined by the value of the Flags field.
The length of the Flags field is 2 octets. The meaning of each bit is as follows:
Table 1 Meanings of the Flags field of the Indoor Bike Data characteristic
Expand
bit | Definition | Value |
|---|---|---|
0 | More Data | Set these parameters based on the fitness machine capabilities. The More Data, Instantaneous Cadence, Total Distance, Resistance Level, Instantaneous Power, Average Power, Expended Energy, and Elapsed Time data must be present. For bikes supporting heart rate measurement, Heart Rate must be present. NOTE |
1 | Average Speed | |
2 | Instantaneous Cadence | |
3 | Average Cadence | |
4 | Total Distance | |
5 | Resistance Level | |
6 | Instantaneous Power | |
7 | Average Power | |
8 | Expended Energy | |
9 | Heart Rate | |
10 | Metabolic Equivalent | |
11 | Elapsed Time | |
12 | Remaining Time |
The following describes the parameters following the Flags field.
Table 2 Indoor Bike Data characteristic parameters
Expand
Parameter | Format | Unit | Support |
|---|---|---|---|
Instantaneous Speed | uint16 | 0.01 Km/h | Mandatory |
Average Speed | uint16 | 0.01 Km/h | Optional |
Instantaneous Cadence | uint16 | 0.5 /min | Mandatory |
Average Cadence | uint16 | 0.5 /min | Optional |
Total Distance | uint24 | metre | Mandatory |
Resistance Level | sint16 | 1 unitless | Mandatory |
Instantaneous Power | sint16 | 1 watt | Mandatory |
Average Power | sint16 | 1 watt | Mandatory |
Total Energy | uint16 | kcal | Mandatory |
Energy Per Hour | uint16 | kcal | Optional |
Energy Per Minute | uint8 | kcal | Optional |
Heart Rate | uint8 | Beats/m | Optional |
Metabolic Equivalent | uint8 | 0.1 meta | Optional |
Elapsed Time | uint16 | second | Mandatory |
Remaining Time | uint16 | second | Optional |
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