3.3.2 Blue Bluetooth Status LED (D2)

The Blue Bluetooth Status LED (D2) indicates the Bluetooth Low Energy connection status by specific LED Flash pattern.

Standby mode:
  • No Bluetooth Low Energy connection
  • RNBD350 is in Advertisement or Scan state
  • Flash one time for every three seconds
  • ON: 50 ms, OFF: 2950 ms
Linked mode:
  • Bluetooth Low Energy ACL link is connected whether central or peripheral role
  • Flash two times for every 1.5 seconds
  • ON: 50 ms, OFF: 150 ms, ON: 50 ms, OFF: 1250 ms
Note: By default, the Bluetooth status LED is turned OFF. The user can enable this feature by using the SR command. For more details, refer to the RNBD350 Bluetooth Low Energy Module User’s Guide (DS50003684).