Computers, Development Boards & Shields
Educational & Robotics Kits
Electronic Sensors
Motors & Controllers
Communication & Display
Electronic Components
Soldering & Lab Tools

BT Slave to Master


I am looking to buy a bluetooth master and slave modules for my arduino uno’s. My question is, how do I establish a link between the two for communication? Do they both have to be on the same serial number  in order to communicate with eachother?



1 Answer


Both units have to be powered on, but as long as you have them set to the same baud rate they will automatically pair with each-other. Once the two are paired the master will automatically look for the MAC address of the slave, but you can reset to allow it to connect to a different one by touching the VCC to the Key pin on the back of the BT2S Master.

Your Answer

No comments yet.

Leave a Reply