Power Button; Led; Wireless Disabled (Green); Wi-Fi Client (Cyan) - X-IO x-IMU3 User Manual

x-IMU3 User Manual v0.11
April 6, 2022
3. Enter the device serial number on the calibration certificate web page.

5 Power button

Pressing the power button while the device is switched off will switch the device on. Pressing and holding the
power button for two seconds while the device is switched on will switch the device off.
A timestamped notification message containing the string, "Button pressed." is sent each time the button is
pressed. This allows the button to function as a basic user input for real-time applications or as a means for
marking events during data logging. If the button is used in this way then the user must be careful not to hold
the button for too long otherwise the device may be switched off unintentionally.

6 LED

The Light-Emitting Diode (LED) indicates the mode and status of the device using different colours and
flashing behaviours.

6.1 Wireless disabled (green)

A green LED, as shown in Figure 3 indicates that the device is switched on and that the wireless mode is
disabled.
Figure 3: Green LED indicating that the device is switched on and that the wireless mode is disabled

6.2 Wi-Fi client (cyan)

A cyan LED, as shown in Figure 4 on the next page indicates that the device is switched on and in Wi-Fi client
mode. Slow flashing (once per second) indicates that device is not connected to an Access Point (AP), fast
flashing (five times per second) indicates that the device is connected to an AP but has not yet obtained an
Internet Protocol (IP) address, and a solid LED indicates that the device is connected to an AP and has an IP
address.
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