movisens Docs

# Bluetooth Low Energy

# Introduction

This document presents the current Bluetooth Smart (a.k.a. Bluetooth Low Energy in Bluetooth 4.0) specification for the 3rd and 4th movisens Sensor generation. This includes the Move3, EcgMove3, EdaMove3, Move4, EcgMove4, EdaMove4 and LightMove4 sensors. Earlier sensors like Move2 and ekgMove do not have a Bluetooth Low Energy functionality.

# Software Development Kits

For the Java programming language the MovisensGattLib (opens new window) provides all UUIDs of the movisens sensors and a convenient way to interpret the characteristics (e.g. MovementAcceleration, RMSSD).

If you want to use the movisens sensors with another programming langue you can still use the Java project (opens new window) as a reference about the available services and characteristics and how to interpret them.

# Other Resources

Since Windows 8 Microsoft has a good API (opens new window) for Bluetooth low energy in C++, C# and Javascript. See the example for the heart rate profile (opens new window).

# Communication with the sensor

# Live vs. Live-Buffered Signals

Most sensor signals are available in two versions:

  1. A live signal without buffering (e.g. Steps). These signals can be activated via GATT Notification. When the sensor is not connected to a receiving device, then data is discarded.
  2. A live + buffered signal with the suffix Buffered (e.g. Steps Buffered). These signals can be activated via GATT Indication. As long as the connection is established the sensor transmits data. When the sensor is disconnected, then the data is buffered (maximum 1 day) until the sensor is connected again. As soon as the connection is established and the sampling rate of the signal is reached (e.g. 60s) the sensor sends the buffered data sequentially until all samples are transfered or the connection drops.

    WARNING

    After a connection dropped exactly the same buffered signals have to be activated, otherwise the sensor stops sending data!

    WARNING

    When a buffered data packet is received it is necessary to check that the timestamp of a received data was not already received.

    Each signal also has a caracteristic that describes how many historical data points are waiting. These characteristics have the suffix Waiting.

# Start a Measurement

To start a new measurement, you need to do the following steps (these steps must be carried out in the given order):

  1. Establish a connection to the Sensor. To connect to a sensor, you can either scan for sensors or you can connect to a sensor directly by using the MAC. You can find the MAC address of a sensor by using e.g. the BLE Scanner (opens new window) Android App.
  2. Enable notification/indication of all characteristics you are interested in. Please read Live Signals vs. Buffered Signals.
  3. Write the current time in seconds to the “current_time” characteristic in the “sensor_control_service”.
  4. Set the Measurement Enabled characteristic in the Sensor Control Service to start a measurement. Or if you want to define the duration of the measurement start the measurement using Start Measurement characteristic.
  5. Set the Save Energy characteristic in the Sensor Control Service to put the connection into energy saving mode.

# Available Signals per Sensor

The following table describes which sensor type records or transmits which signals.

WARNING

The table shows the signals that are available in Firmwares of version 1.15.0. Earlier versions may not include all signals.

Legend:

⇒ Signal is recorded to the internal storage.
⇒ Signal is transmitted over Bluetooth Low Energy. The seconds in the round brackets describe the delay between the measurement and the transmission of the signal over Bluetooth Low Energy.

Name Type Samplerate [Hz] EcgMove 3 Move 3 LightMove 3 EdaMove 3 Move 4 EcgMove 4 LightMove 4 EdaMove 4
acc Signal 64 Hz
angularRate Signal 64 Hz
bodyPosition_live Signal 1/60 Hz (84 s) (84 s) (84 s) (84 s)
bpmBxb_live ValueList 1024 Hz , (10 s) , (10 s)
charging Signal 1/60 Hz , (0 s) , (0 s) , (0 s) , (0 s) , (0 s) , (0 s) , (0 s) , (0 s)
ecg Signal 1024 Hz
eda Signal 32 Hz
edaSclMean_live Signal 1/60 Hz , (68 s) , (68 s)
hr_live Signal 1/60 Hz , (70 s) , (70 s)
hrvIsValid_live Signal 1/60 Hz , (84 s) , (84 s)
hrvRmssd_live Signal 1/60 Hz , (84 s) , (84 s)
light Signal 1 Hz
lightMean_live Signal 1/60 Hz (68 s) (68 s)
marker EventList 64 Hz , (0 s) , (0 s) , (0 s) , (0 s) , (0 s) , (0 s) , (0 s) , (0 s)
met_live Signal 1/60 Hz (84 s) (84 s) (84 s) (84 s)
metLevel_live Signal 1/60 Hz (84 s) (84 s) (84 s) (84 s)
movementAcceleration_live Signal 1/60 Hz , (84 s) , (84 s) , (68 s) , (68 s) , (84 s) , (84 s) , (68 s) , (68 s)
nn_live ValueList 1024 Hz
press Signal 8 Hz
stateOfCharge Signal 1/60 Hz , (0 s) , (0 s) , (0 s) , (0 s) , (0 s) , (0 s) , (0 s) , (0 s)
stepCount_live Signal 1/60 Hz , (84 s) , (84 s) , (68 s) , (68 s) , (84 s) , (84 s) , (68 s) , (68 s)
temp Signal 1 Hz
tempMean_live Signal 1/60 Hz , (84 s) , (84 s) , (68 s) , (68 s) , (84 s) , (84 s) , (68 s) , (68 s)
timeDeviation ValueList 1 Hz

# Services and Characteristics

# Services

# Ambient

UUID: d0f0f790-66c9-4e1f-bf48-1628a7ad89f9
Characteristic Description Address Format Permissions
Light

Ambient light (clear, ir)

 375bf82c-41e8-4ca1-9b95-f8634b1ba2f8 uint32 clear
uint32 ir
 read
notify
Light Buffered

Buffered ambient light (clear, ir)

samplerate is 0.016666666666666666 Hz

time:

  • Time of the first sample in this attribute.
  • Time is given in number of seconds since 1 January 1970 00:00:00 UTC.

len:

  • Number of samples in this attribute.

 7e5dd77b-67b7-42dd-be7a-822373391b2f uint32 time
uint8 len

uint32 clear[1]
uint32 ir[1]

...

uint32 clear[len]
uint32 ir[len]
 indicate
Light RGB

Ambient light (red, green, blue)

 db32d0ca-fda0-4298-9d2f-1b109eb95a2f uint32 red
uint32 green
uint32 blue
 read
notify
Light RGB buffered

Buffered ambient light (red, green, blue)

samplerate is 0.016666666666666666 Hz

time:

  • Time of the first sample in this attribute.
  • Time is given in number of seconds since 1 January 1970 00:00:00 UTC.

len:

  • Number of samples in this attribute.

 2c4abbf8-8da6-4e47-afcd-18034d67c5ee uint32 time
uint8 len

uint32 red[1]
uint32 green[1]
uint32 blue[1]

...

uint32 red[len]
uint32 green[len]
uint32 blue[len]
 indicate
Light RGB waiting

Number of light samples waiting.

 c758f5a6-516d-4125-b8de-ae3ebcabeabc uint32 samplesWaiting
 read
Light Waiting

Number of light samples waiting.

 d166790b-9531-44fd-8314-14f303280de1 uint32 samplesWaiting
 read
Sensor Temperature

Temperature measured inside the sensor housing

temperature:

  • unit is °C
  • value of lsb is 0.1 °C

 2c007893-37a4-473d-8c07-09c41324eea5 uint16 temperature
 read
notify
Sensor Temperature Buffered

Buffered temperature measured inside the sensor housing

samplerate is 0.016666666666666666 Hz

time:

  • Time of the first sample in this attribute.
  • Time is given in number of seconds since 1 January 1970 00:00:00 UTC.

len:

  • Number of samples in this attribute.

temperature:

  • unit is °C
  • value of lsb is 0.1 °C

 869c06de-f52a-4a90-9a3a-ca5fd35d6707 uint32 time
uint8 len

uint16 temperature[1]

...

uint16 temperature[len]
 indicate
Sensor Temperature Waiting

Number of temp_mean samples waiting.

 433a8af8-9839-4057-94aa-ef02fa0af106 uint32 samplesWaiting
 read

# Eda

UUID: eb08670d-f244-4511-b43e-04bba968b693
Characteristic Description Address Format Permissions
Eda Scl Mean

eda_scl_mean

edaSclMean:

  • unit is µS
  • value of lsb is 0.0030518509475997192 µS

 a884dc4b-62d6-44ee-bcbf-d0f725d95213 uint16 edaSclMean
 read
notify
Eda Scl Mean Buffered

Buffered eda_scl_mean

samplerate is 0.016666666666666666 Hz

time:

  • Time of the first sample in this attribute.
  • Time is given in number of seconds since 1 January 1970 00:00:00 UTC.

len:

  • Number of samples in this attribute.

edaSclMean:

  • unit is µS
  • value of lsb is 0.0030518509475997192 µS

 663af1bc-2fa0-43c0-b452-2b8c1efb7f9d uint32 time
uint8 len

uint16 edaSclMean[1]

...

uint16 edaSclMean[len]
 indicate
Eda Scl Mean Waiting

Number of eda_scl_mean samples waiting.

 47755955-966e-4b75-b79b-ef5c839cb191 uint32 samplesWaiting
 read

# Hrv

UUID: 0bd51666-e7cb-469b-8e4d-2742f1ba77cd
Characteristic Description Address Format Permissions
Hr Mean

hr_mean

hrMean:

  • unit is 1/min
  • value of lsb is 1.0 1/min

 3b999d71-751b-48fa-8817-b7131f47c2da int16 hrMean
 read
notify
Hr Mean Buffered

hr_mean

samplerate is 0.016666666666666666 Hz

time:

  • Time of the first sample in this attribute.
  • Time is given in number of seconds since 1 January 1970 00:00:00 UTC.

len:

  • Number of samples in this attribute.

hrMean:

  • unit is 1/min
  • value of lsb is 1.0 1/min

 1d9533d1-8c6e-4b6a-b242-d0713be204f0 uint32 time
uint8 len

int16 hrMean[1]

...

int16 hrMean[len]
 indicate
Hr Mean Waiting

Number of hr_mean samples waiting.

 c806ec67-00be-490a-aa79-1011396f38e8 uint32 samplesWaiting
 read
Hrv Is Valid

hrv_is_valid

 5d9724de-501e-475f-b8e6-d0e77ea4d0c1 boolean hrvIsValid
 read
notify
Hrv Is Valid Buffered

Buffered hrv_is_valid

samplerate is 0.016666666666666666 Hz

time:

  • Time of the first sample in this attribute.
  • Time is given in number of seconds since 1 January 1970 00:00:00 UTC.

len:

  • Number of samples in this attribute.

 0524f2f1-d8da-4ef6-9e3b-43d6ed0ec518 uint32 time
uint8 len

boolean hrvIsValid[1]

...

boolean hrvIsValid[len]
 indicate
Hrv Is Valid Waiting

Number of hrv_is_valid samples waiting.

 b2734e22-5c9e-476c-a317-d3fb706df00c uint32 samplesWaiting
 read
Rmssd

rmssd

rmssd:

  • unit is ms
  • value of lsb is 1.0 ms

 f89edec1-9fea-e145-f614-8ff69aa7da66 int16 rmssd
 read
notify
Rmssd Buffered

Buffered rmssd

samplerate is 0.016666666666666666 Hz

time:

  • Time of the first sample in this attribute.
  • Time is given in number of seconds since 1 January 1970 00:00:00 UTC.

len:

  • Number of samples in this attribute.

rmssd:

  • unit is ms
  • value of lsb is 1.0 ms

 1bc36d57-595b-499e-8f2a-fa2275bcabc3 uint32 time
uint8 len

int16 rmssd[1]

...

int16 rmssd[len]
 indicate
Rmssd Waiting

Number of rmssd samples waiting.

 f89edec0-b569-ee0d-9589-e4abd1f42693 uint32 samplesWaiting
 read

# Marker

UUID: 32062bba-7843-4ad6-94ea-95c66909edcf
Characteristic Description Address Format Permissions
Tap Marker

Marker set by the user by tapping the sensor.

 207b171c-d7a5-48ef-8e60-6ccb5f0993f4 uint32 tapMarker
 read
notify

# Movisens Battery

UUID: 27b66685-62e5-4e76-8c02-d625600ed2c6
Characteristic Description Address Format Permissions
Battery Level Buffered

Buffered battery level.

samplerate is 0.016666666666666666 Hz

time:

  • Time of the first sample in this attribute.
  • Time is given in number of seconds since 1 January 1970 00:00:00 UTC.

len:

  • Number of samples in this attribute.

level:

  • unit is %
  • value of lsb is 1.0 %

 c7538ae7-b2ec-4905-8ebc-4a0581df4335 uint32 time
uint8 len

uint8 level[1]

...

uint8 level[len]
 indicate
Battery Level Waiting

Number of battery level values in the buffer.

 f84adb7d-a503-44d4-88ba-8583b981b5b2 uint32 samplesWaiting
 read
Charging

True if the sensor is currently charging.

 d34f2d52-5fcd-491c-b782-6b84e439687e boolean charging
 read
notify
Charging Buffered

Buffered charging.

samplerate is 0.016666666666666666 Hz

time:

  • Time of the first sample in this attribute.
  • Time is given in number of seconds since 1 January 1970 00:00:00 UTC.

len:

  • Number of samples in this attribute.

 601d030e-b067-4f80-9a36-09aa9fb21670 uint32 time
uint8 len

boolean charging[1]

...

boolean charging[len]
 indicate
Charging Waiting

Number of charging samples waiting.

 c1432e2e-aa2e-456b-9c4f-c16ddc449371 uint32 samplesWaiting
 read

# Movisens User Data

UUID: 17e28d0f-5f44-421f-97d5-667655e24460
Characteristic Description Address Format Permissions
Age Float

Age of the User in years as decimal number.

age:

  • unit is a
  • value of lsb is 1.0 a

 7562060b-4aff-4422-aec7-77770d2a0530 float32 age
 read
write
Sensor Location

The location at which the user wears the sensor.

sensorLocation is one of:

  • 1 right_side_hip
  • 2 chest
  • 3 right_wrist
  • 4 left_wrist
  • 5 left_ankle
  • 6 right_ankle
  • 7 right_thigh
  • 8 left_thigh
  • 9 right_upper_arm
  • 10 left_upper_arm
  • 11 left_side_hip

 1ffb6b9d-52a7-4de2-a3bb-58ee97facd59 uint8 sensorLocation
 read
write

# Physical Activity

UUID: 0302c2b2-ce64-4542-b819-666d20d415bd
Characteristic Description Address Format Permissions
Body Position

the position of the users body. Needs characteristic sensor_location to be set in user_data service!

bodyPosition is one of:

  • 0 unknown
  • 1 lying_supine
  • 2 lying_left
  • 3 lying_prone
  • 4 lying_right
  • 5 upright
  • 6 sitting_lying
  • 7 standing
  • 99 not_worn

 2abf95be-7496-4e72-b880-f9f00aad553b uint8 bodyPosition
 read
notify
Body Position Buffered

Buffered position of the users body. Needs characteristic sensor_location to be set in user_data service!

samplerate is 0.016666666666666666 Hz

time:

  • Time of the first sample in this attribute.
  • Time is given in number of seconds since 1 January 1970 00:00:00 UTC.

len:

  • Number of samples in this attribute.

bodyPosition is one of:

  • 0 unknown
  • 1 lying_supine
  • 2 lying_left
  • 3 lying_prone
  • 4 lying_right
  • 5 upright
  • 6 sitting_lying
  • 7 standing
  • 99 not_worn

 fda6f11e-a1d0-41da-b611-5ab3ec34f6ca uint32 time
uint8 len

uint8 bodyPosition[1]

...

uint8 bodyPosition[len]
 indicate
Body Position Waiting

Number of body_position samples waiting.

 8fbffb12-23ed-498b-b19c-9c9a67f14b75 uint32 samplesWaiting
 read
Inclination

Inclination of the sensor

x:

  • unit is °
  • value of lsb is 1.0 °

y:

  • unit is °
  • value of lsb is 1.0 °

z:

  • unit is °
  • value of lsb is 1.0 °

 e165b5d0-d83f-4a5c-86a6-306ca1ddf0ef uint8 x
uint8 y
uint8 z
 read
notify
Inclination Buffered

Buffered inclination

samplerate is 0.016666666666666666 Hz

time:

  • Time of the first sample in this attribute.
  • Time is given in number of seconds since 1 January 1970 00:00:00 UTC.

len:

  • Number of samples in this attribute.

x:

  • unit is °
  • value of lsb is 1.0 °

y:

  • unit is °
  • value of lsb is 1.0 °

z:

  • unit is °
  • value of lsb is 1.0 °

 f89edebf-9b5b-486d-054f-b3ce3e226d49 uint32 time
uint8 len

uint8 x[1]
uint8 y[1]
uint8 z[1]

...

uint8 x[len]
uint8 y[len]
uint8 z[len]
 indicate
Inclination Waiting

Number of inclination samples waiting.

 f89edeb8-dda5-770a-e42d-005ed49f5e29 uint32 samplesWaiting
 read
Met

Current value of met (metabolic equivalent of task).

Needs characteristics age, gender, weight, height and sensor_location to be set in user_data service!

 088133e4-bf36-4c10-943a-17e07734d4ba uint16 met
 read
notify
Met Buffered

Buffered met.

samplerate is 0.016666666666666666 Hz

time:

  • Time of the first sample in this attribute.
  • Time is given in number of seconds since 1 January 1970 00:00:00 UTC.

len:

  • Number of samples in this attribute.

 82e947c3-48a2-4106-8536-b3bdc6b10453 uint32 time
uint8 len

uint16 met[1]

...

uint16 met[len]
 indicate
Met Level

Number of seconds the users met value was at one of the met levels (sedentary, light, moderate, vigorous)

Needs characteristics age, gender, weight, height and sensor_location to be set in user_data service!

sedentary:

  • unit is s
  • value of lsb is 1.0 s

light:

  • unit is s
  • value of lsb is 1.0 s

moderate:

  • unit is s
  • value of lsb is 1.0 s

vigorous:

  • unit is s
  • value of lsb is 1.0 s

 114dc370-a5d0-4d86-a701-030282a0a271 uint8 sedentary
uint8 light
uint8 moderate
uint8 vigorous
 read
notify
Met Level Buffered

Buffered met level.

samplerate is 0.016666666666666666 Hz

time:

  • Time of the first sample in this attribute.
  • Time is given in number of seconds since 1 January 1970 00:00:00 UTC.

len:

  • Number of samples in this attribute.

sedentary:

  • unit is s
  • value of lsb is 1.0 s

light:

  • unit is s
  • value of lsb is 1.0 s

moderate:

  • unit is s
  • value of lsb is 1.0 s

vigorous:

  • unit is s
  • value of lsb is 1.0 s

 7ba991c9-dfa6-4776-9002-6c9696f90e14 uint32 time
uint8 len

uint8 sedentary[1]
uint8 light[1]
uint8 moderate[1]
uint8 vigorous[1]

...

uint8 sedentary[len]
uint8 light[len]
uint8 moderate[len]
uint8 vigorous[len]
 indicate
Met Level Waiting

Number of met level samples waiting.

 547729db-1f9b-422f-a581-ea377ffcadf9 uint32 samplesWaiting
 read
Met Waiting

Number of met samples waiting.

 e19aa0f5-da3d-4dbf-a4a2-6e8ad6c4d0ce uint32 samplesWaiting
 read
Movement Acceleration

movement_acceleration

movementAcceleration:

  • unit is g
  • value of lsb is 0.00390625 g

 d48d48e3-318f-4a11-8dd2-cb4a9051534f int16 movementAcceleration
 read
notify
Movement Acceleration Buffered

buffered movement_acceleration

samplerate is 0.016666666666666666 Hz

time:

  • Time of the first sample in this attribute.
  • Time is given in number of seconds since 1 January 1970 00:00:00 UTC.

len:

  • Number of samples in this attribute.

movementAcceleration:

  • unit is g
  • value of lsb is 0.00390625 g

 9e2da811-041a-43ce-b703-013277f19ae6 uint32 time
uint8 len

int16 movementAcceleration[1]

...

int16 movementAcceleration[len]
 indicate
Movement Acceleration Waiting

Number of movement_acceleration samples waiting.

 20b6f034-50e5-4fad-92c8-fa20ee4203c6 uint32 samplesWaiting
 read
Steps

steps

 8ba3207b-6a87-424d-bde0-4f665f500f04 uint16 steps
 read
notify
Steps Buffered

buffered steps

samplerate is 0.016666666666666666 Hz

time:

  • Time of the first sample in this attribute.
  • Time is given in number of seconds since 1 January 1970 00:00:00 UTC.

len:

  • Number of samples in this attribute.

 58c6374e-9927-414a-b90e-475014af65ba uint32 time
uint8 len

uint16 steps[1]

...

uint16 steps[len]
 indicate
Steps Waiting

Number of steps samples waiting.

 9b72b459-d1e5-48fe-9c91-2fb168261b21 uint32 samplesWaiting
 read

# Respiration

UUID: da87d1a7-749c-4711-bd54-c625043ecd83
Characteristic Description Address Format Permissions
Respiratory Movement

aaabeb9a-abed-4a17-a764-0aaf0ac808fe int16 values
 read
notify

# Sensor Control

UUID: f89edeb6-e4e8-928b-4cfa-ebc07fce1768
Characteristic Description Address Format Permissions
Activated Buffered Characteristics

f1cc0780-95e8-4a93-a1d1-6cfac6641b24 read
Command Result

Result of the last command.

error is one of:

  • 0 ok
  • 1 not_started_battery_low
  • 2 not_started_data_available
  • 3 not_started_proband_info_missing
  • 4 not_deleted_measurement_on
  • 5 not_started_measurement_on
  • 6 not_stopped_measurement_off

 3cd05e3a-4e2c-4d6c-bee8-f02ffdbc32ea uint8 error
 read
notify
Current Time

Deprecated! Use current_time_ms instead. A number representing the seconds elapsed between 1 January 1970 00:00:00 UTC and the given date in UTC. Must be set before the Measurement is Enabed.

 f89edec4-d590-764d-530f-8fff5c181606 stime currentTime
 read
write
Current Time Ms

A number representing the milliseconds elapsed between 1 January 1970 00:00:00 UTC and the given date in UTC. Must be set before the Measurement is Enabed.

 8f717cee-030c-4628-9d76-4e3fd9d74fb6 mstime time
 read
write
Custom Data

Custom data to store general purpose data.

 0086b101-7f7d-4249-bfae-1999065a68c2 read
write
Data Available

Returns true if measurement data is available on the sensor.

 10847e7a-d43f-4b9e-b2f2-3e8546215c3c boolean dataAvailable
 read
notify
Delete Data

If set to 1, data of the last measurement is deleted and the next measurement can be started.

 f89edec2-9fc2-c29e-ff29-da323b327e44 boolean deleteData
 write
Measurement Enabled

Must be set to 1 to start a measurement. If the recording stopped the value will be changed and notified as 0.

 f89edec7-f7e0-94f2-747d-ee7acaa6d412 boolean measurementEnabled
 read
write
notify
Measurement Start Time

Start time of the current measurement or 0 if no measurement is currently active. Time is given in UTC and is represented by milliseconds elapsed since 1 January 1970 00:00:00 UTC.

 2d81487d-08f7-47e1-a060-0659d9b4b766 mstime time
 read
Measurement Status

status is one of:

  • 1 stopped_duration_reached
  • 2 stopped_user_usb
  • 3 stopped_battery_empty
  • 4 stopped_error
  • 5 stopped_user_ble
  • 6 stopped_storage_full
  • 7 paused_battery_low
  • 8 stopped_empty
  • 9 measuring

 66f1e70e-54ab-489c-8f5d-0008b67553c7 uint8 status
 read
notify
Save Energy

Must be set to 1 to put the connection into energy saving mode (Recommended after configuration is done). As soon as a new connection is established the save energy mode must be enabled again.

 f89edebf-9b5b-486d-054f-b3ce3e226d42 boolean saveEnergy
 write
Send Buffered Data

If set to 1 and buffered data is available the sensor sends out the data.

 8b7446a0-372a-4841-aa5e-3b97d30a45b3 boolean sendBufferedData
 write
Start Measurement

send to start a measurement and set duration of measurement in seconds

 5936ef92-62e4-4759-9041-d3461130a4b5 uint32 duration
 write
Status

Status of the sensor.

 f89edec9-b0e0-d44f-45e8-d125177194d5 uint8 status
 read
Storage Level

The current level of storage used. 100% means that all free space is used (storage full) while 0% means that the whole storage capacity is available.

level:

  • unit is %
  • value of lsb is 1.0 %

 8be8b5f3-03fe-4598-96b8-994e41f33979 uint8 level
 read
notify
Time Zone Id

Time zone id of the zone in which the sensor was or will be started

 8c3adbfa-9218-419e-b809-6de9918ba8d5 timezone zoneId
 read
write
Time Zone Offset

Time zone offset in seconds from UTC in which the sensor was or will be started.
See java.time.ZoneOffset ofTotalSeconds and getTotalSeconds.

 b9b5bd3a-475c-43a6-b25e-bc706eb016ca int32 zoneOffset
 read
write

# Skin Temperature

UUID: 247af432-444c-4211-8b9d-2c8512cfdf4a
Characteristic Description Address Format Permissions
Skin Temperature

temperature

temperature:

  • unit is °C
  • value of lsb is 0.01 °C

 f89edec6-a336-5262-448d-400ca97a1c57 int16 temperature
 read
notify
Skin Temperature 1s Buffered

samplerate is 1.0 Hz

time:

  • Time of the first sample in this attribute.
  • Time is given in number of seconds since 1 January 1970 00:00:00 UTC.

len:

  • Number of samples in this attribute.

temperature:

  • unit is °C
  • value of lsb is 0.01 °C

 99ebde23-1b3e-4084-85c2-18bca6eb5a1a uint32 time
uint8 len

int16 temperature[1]

...

int16 temperature[len]
 indicate
Skin Temperature Buffered

samplerate is 0.016666666666666666 Hz

time:

  • Time of the first sample in this attribute.
  • Time is given in number of seconds since 1 January 1970 00:00:00 UTC.

len:

  • Number of samples in this attribute.

temperature:

  • unit is °C
  • value of lsb is 0.01 °C

 78663ddf-83c3-4665-9d04-003c990acf78 uint32 time
uint8 len

int16 temperature[1]

...

int16 temperature[len]
 indicate
Skin Temperature Waiting

Number of temperature samples waiting.

 f89edeb7-0d8c-b529-baef-2f9ab82f6cc6 uint32 samplesWaiting
 read
Last Updated: 9/1/2020, 3:54:50 PM

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