Nymi Band Taps Detected at Inconsistent Distances

Cause

The window size is too small to smooth out natural RSSI fluctuations. As a result, the average RSSI tap window varies too much to reliably indicate that the user performed a Nymi Band tap.

Resolution

Modify the RSSI configuration to increase the window size. A larger window provides more RSSI samples, which creates a more stable average and helps maintain consistent tap detection.

• On Windows and HP Thin Pro, edit the nbe.toml file.
  • For the Bluegiga Bluetooth adapter, increase the rssi_windows_tap value in the [dongle.bluegiga] section.
  • For the BleuIO adapter, decrease the rssi_windows_tap value in the [dongle.bleuio] section.
  • Restart the Nymi Bluetooth Endpoint service.
• On IGEL, in UMS, navigate to System > Firmware Customization > Custom Partition > Partition and increase the RSSI_WINDOWS_TAP value.