Abeeway Micro Tracker - Heartbeat Messages; Position Messages

Micro Tracker Reference Guide FW 1.7 V1.1
Page 26 of 39
11th october 2018
Restricted distribution
Battery: Battery voltage expressed in volt. Encoded form using lo= 2.8, hi= 4.2, nbits= 8, nresv= 2. It is given
with a step of 5,5mV
Temperature: Temperature measured in the device, expressed in degree Celsius. Encoded form using lo= -
44, hi= 85, nbits= 8, nresv= 0. It is given with a step of 0.5°C
Ack/opt:
Bit 7-4
Acknowledge token. Refer the section Acknowledge token for more details
Bit 3-0
Optional data (depending on message type)
Information: Variable part depending on the message type.
Decoding of the encoded form is detailed in the Encoded form section
5.4 Heartbeat messages
Byte 0-4
Byte 5
Byte 6-8 (optional)
Header
Cause
FW version
Cause: Last reset cause
FW version: Firmware version on the device, it is sent only twice a day
5.5 Position messages
Common header
Data
Byte 0-3
Byte 4
(1)
Header
Ack/opt
Position Information
Note:
(1) The size of data part depends on the type of position message
Ack/opt:
Bit 7-4
Acknowledge token
Bit 3-0
Optional data: position type (see the values below)
Position Information: type of position message
➢ 0 – GPS fix:
➢ 1 – GPS timeout
➢ 2 – No more used.
➢ 3 – WIFI timeout
➢ 4 – WIFI failure
➢ 5, 6 – LP-GPS data (encrypted, not described in this document)
➢ 7 – BLE beacon scan
➢ 8 – BLE beacon failure
➢ 9 – WIFI BSSIDs