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Beurer Sanitas
Erik Johansson edited this page Dec 4, 2018
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1 revision
Protocol description for Beurer/Sanitas scales (code).
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<sb>: start byte (e7 or f7) -
<alt sb Y>: alternative start byte (eY or fY) -
<uid>: user ID (8 bytes, BE) -
<name>: 3 characters (bytes) -
<timestamp>: unix timestamp (4 bytes) -
<weight>: 2 bytes, BE (unit g / 50) -
<impedance>: 2 bytes, BE
All protocol bytes are in hex. Writes are done to characteristic 0xffe1 on the service 0xffe0. This is also where notifications are received from.
- Enable notifications.
- Write:
<alt sb 6> 01 - Notification:
<alt sb 6> 00 20 - Write:
<alt sb 9> <timestamp> - Write:
<sb> 4f <uid> - Notification:
<sb> f0 4f <??> <battery> <wthr> <fthr> <unit> <ue> <urwe> <ume> <version>
<uid> can be given as all 0 (or other invalid user id) to query scale status only.
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<battery>: battery level -
<wthr>: weight threshold (unit g / 100) -
<fthr>: fat threshold -
<unit>: 1 = kg, 2 = lb, 4 = st -
<ue>, <urwe>, <ume>: user (reference weight, measurement) exists -
<version>: scale version
- Write:
<sb> 4e <wthr> <fthr> - Notification:
<sb> f0 4e 00
Thresholds in original app:
- 0x28 0xdc (4.0 22.0)
- 0x14 0xdc (2.0 22.0)
- 0x0a 0x14 (1.0 2.0)
After scale reset: 0x14 0x14 (2.0 2.0)
- Write:
<sb> 4d <unit> - Notification:
<sb> f0 4d 00
- Write:
<alt sb a> 2
- Write:
<sb> 33 - Notification:
<sb> f0 33 00 <count> <max> - Notification:
<sb> 34 <count> <current> <uid> <name> <year> - Write:
<sb> f1 34 <count> <current> - Goto 3 if
<count> != <current>
- Write:
<sb> 36 <uid> - Notification:
<sb> f0 36 00 <name> <year> <month> <day> <height> <sex|activity>
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<month>: January == 0 -
<sex|activity>: sex (female = 0x00, male = 0x80) | activity level 1 - 5
- Write:
<sb> 31 <uid> <name> <year> <month> <day> <height> <sex|activity> - Notification:
<sb> f0 31 00 - Perform initial measurement.
Status in notification: 00 (ok), 01 (full), 02 (uid taken), 03 (name used)
- Write:
<sb> 35 <uid> ... (same as when adding user) - Notification:
<sb> f0 35 00
- Write:
<sb> 32 <uid> - Notification:
<sb> f0 32 00
- Write:
<sb> 40 <uid> - Notification:
<sb> f0 40 00 - Notification:
<sb> 58 <status> <weight> - Write:
<sb> f1 58 <status> <weight MSB> - Goto 3 if
<status> != 0 - Notification:
<sb> 59 <count> <current> 01 <uid> - Write:
<sb> f1 59 <count> <current> - Notification:
<sb> 59 <count> <current> <11 bytes data> - Write:
<sb> f1 59 <count> <current> - Goto 8 if
<count> != <current>
- Step 1 selects the user with the given ID.
-
<status>: 0 for stable measurement, 1 otherwise - All
<data>from step 8 is joined and parsed as a measurement.
- Write:
<sb> 41 <uid> - Notification:
<sb> f0 41 <count> 00 - Notification:
<sb> 42 <count> <current> <11 bytes data> - Write:
<sb> f1 42 <count> <current> - Goto 3 if
<count> != <current>
- All
<data>from step 3 is joined and parsed as<count> / 2measurement(s).
- Write:
<sb> 43 <uid> - Notification:
<sb> f0 43 00
22 bytes of data:
<timestamp> <weight> <impedance> <fat> <water> <muscle> <bone> <BMR> <AMR> <BMI>
- Write:
<sb> 46 - Notification:
<sb> f0 46 00 - Notification:
<sb> 47 <count> <current> <mem> <timestamp> <weight> <impedance> - Write:
<sb> f1 47 <count> <current> - Goto 3 if
<count> != <current>
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<mem>: index in memory (stays constant after removal)
- Write:
<sb> 4b <uid> <timestamp> <weight> <impedance> <mem> - Notification:
<sb> f0 4b 00 - Notification:
<sb> 4c <count> <current> <11 bytes data> - Write:
<sb> f1 4c <count> <current> - Goto 3 if
<count> != <current>
- All
<data>from step 3 is joined and parsed as a measurement.
- Write:
<sb> 49 <mem> - Notification:
<sb> f0 49 00