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x-IMU3 User Manual v1.7
January 5, 2024
10 Network announcement message
The network announcement message is used by a host to discover and connect to x-IMU3s on the same
network. The message is continuously broadcast by the x-IMU3 on UDP port 10000 at a fixed rate of one
message per second. Each message provides the device name, serial number, Wi-Fi and battery status, as
well as the device settings required for a host to establish a TCP or UDP connection. The message is a single
JSON object. The key/value pairs are described in Table 36.
Key
"sync"
"name"
"sn"
"ip"
"port"
"send"
"receive"
"rssi"
"battery"
"status"
Example*:
"sync":
"name":
"sn":
"ip":
"port":
"send":
"receive":
"rssi":
"battery":
"status":
* The actual JSON will not include any whitespace.
11 Device settings
11.1 Individual settings
11.1.1 Calibration date (read-only)
Description:
Calibration date. See Section 4 on page 15 for more information.
JSON key:
"calibrationDate"
JSON value type:
string
Default value:
"Unknown"
Value type
Description
number
Used for synchronisation
string
Device name
string
Device serial number
string
x-IMU3 IP address
number
TCP port
number
UDP send port (x-IMU3 sends to this port)
number
UDP receive port (x-IMU3 receives on this port)
number
RSSI percentage (-1 in Wi-Fi AP mode)
number
Battery percentage
number
Charging status (See Table 30 on page 32)
Table 36: Network announcement message key/value pairs
0,
"x-IMU3",
"01234567",
"192.168.1.1",
7000,
8000,
9000,
100,
100,
2
36
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