C099-F9P - User guide
UBX-18063024 - R12
Wireless communication
Page 20 of 40
C1-Public
6
Wireless communication
6.1
Bluetooth pairing
Prior to operation, the user is requested to pair the ODIN-W2 with a host device. Pairing is the process
for creating one or more shared secret keys and is required only once for a pair of devices. The ODIN-
W2 can be paired with one of the two alternatives:
1.
The host initiates, ODIN-W2 responds.
2.
ODIN-W2 initiates, the host responds.
6.1.1
ODIN-W2 as pairing responder
Once verified that the terminal connection is available, use the following command to make the ODIN-
W2 visible and connectable:
/bt_visible/run
ODIN-W2 will acknowledge a successful reception of the command and inform once it is ready to
respond to a pairing request.
Next, perform Bluetooth scan to find the C099-F9P. Every C099-F9P has a predefined unique
Bluetooth name of type BT_C099-F9P_XYZW as shown in Figure 22.
Figure 22: Windows 10 menu for adding a Bluetooth device
6.1.2
ODIN-W2 as pairing initiator
Once you have verified a working CLI connection, use the following command to scan any nearby
Bluetooth devices. Prior to that, enable Bluetooth visibility at the host device.
/bt_inquiry/run
The C099-F9P will list the nearby Bluetooth devices, their Bluetooth addresses (“MAC”) and the
corresponding RSSI values. To ensure sufficient radio link quality, check that the RSSI level of the host
device is well above -80 dBm. Weak signal levels can result in connection losses and limited range.
Once the host device has been found by the C099-F9P, the following command starts the pairing
process:
/bt_bond/run <MAC address>
ODIN-W2 will wait until the user has accepted the pairing request on the host device. Note that the
pairing request will fail if an internal timeout is reached. Typically, you can accept an incoming pairing
request in the host Bluetooth menu. Finally, the host and ODIN-W2 will permanently store their
exchanged link keys for future connections.
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