COMMON MESSAGES
12
Wireless Acceleration Sensor User Guide
Message
Payload
Description
0xfb
Link quality
Sent after each downlink configuration (refer to
) or to periodically ping the network server (refer to
).
0xfe
--
Reserved.
0xff
1-byte status
Downlink message ACK. Refer to
for more detail.
Reset Message 0x00
Every time a sensor resets it sends a reset message to the cloud.
The reset message payload is defined in the following table.
Bytes
Description
0
Sensor type code, a product identifier sent as part of the reset message.
Acceleration-Based
Movement
0x08
1
Hardware version.
2-3
Firmware version.
4-5
Reset code. Used for factory diagnostics.
Firmware Version
The 16-bit firmware version is constructed from reset payload Bytes 2-3, where Byte 2 is the most significant byte.
Beginning with version 2.0, the format is as shown in the following table.
The original format is compatible by redefining the reserved most significant bit (Bit 15).
Byte
Description
15
Format (bit == 0)
14:8
Major number (7 bits)
7:0
Minor number (8 bits)
15
Format (bit == 1)
14:10 Major number (5 bits)
9:5
Minor number (5 bits)
4:0
Build number (5 bits)
16-Bit Firmware Version Examples
0x0103 is decoded as Firmware Version 1.3
0x8823 is decoded as Firmware Version 2.1.3
