NBL1022-dat

https://www.electrodragon.com/product/lc-05-bluetooth-serial-moduel-masterslave-in-one/

Features:

  • BQB certificated
  • Master / Slave Mode supported
  • classic bluetooth easy to use

SCH

Base Board Pin Definitions

from left to right from front side

  • GND
  • +5V
  • 3V3
  • TXD
  • RXD
  • Clear - clear the pairing status

Backside Jumper Setup Mode:

Bottom jumper set hardware / software method for slave / master mode, Default setup for hardware method.

Jumper Function Mode Default
SJ2 master / slave hardware control M/S mode  
SJ1 soft / hard Mode control mode select Hard
  • Top jumper set for slave / master mode.
  • If you prefer to use software method by AT commands to change slave / mater mode, cut the bottom jumper connection (GND - middle pin), then re-connect to top by solder (VCC-middle pin).

Note

Wiring

  • Board RXD -> target RXD, board TXD -> target TXD

Mode

  • Be aware default setting of the product is slave mode, communication only available between master and slave mode, but not master and master, or slave and slave mode.

Demo Video

ref

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