5.5.7 Set Link Quality Indication
| Firmware Version 1.0 | Firmware Version 1.2 and Later |
|---|---|
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Note: All firmware version 1.0 syntax remains valid in version 1.2 and later. | |
The link quality indication feature allows the user to determine the quality of the link based on the RSSI level. The link quality indication feature expects an existing connection between the RNBD350 module and another Bluetooth Low Energy device. Whenever the RSSI value goes beyond the threshold or goes below the weak RSSI limit, the event indication pin (RSSI indication pin) is activated.
Use the first parameter to enable/disable the SIL or SLQI command feature. The second parameter is the RSSI normal threshold. The last parameter is the RSSI weak threshold.
Note: The normal RSSI value must be less than the weak RSSI value because it is an assigned value.
The default value assigned in firmware:
- RSSI normal threshold = -70 dB (Hex 46)
- RSSI weak threshold = -80 dB (Hex 50)
When there is a received link quality event, use the command M to query the RSSI value for the specific connection.
| Item | Firmware Version 1.0 and Later | Description |
|---|---|---|
| Default: | 0,00,00 | |
| Example: | SIL,1,46,50 | Link quality indication feature is enabled. Set the normal RSSI value as -70 dB and weak RSSI value as -80 dB. |
| Response: | AOK | Success |
Note: The PDS stores these parameters. The parameters are effective immediately without a reboot. | ||
| Item | Firmware Version 1.2 and Later | Description |
|---|---|---|
| Default: | 0,00,00 | |
| Example: | SLQI,1,46,50 | Link quality indication feature is enabled. Set the normal RSSI value as -70 dB and weak RSSI value as -80 dB. |
| Response: | AOK | Success |
Note: The PDS stores these parameters. The parameters are effective immediately without a reboot. | ||