This document will outline the steps necessary to secure your connection with your microcontroller, thus only allowing one device to connect to your microcontroller.

Note: Currently the Bluno running the latest firmware (1.94) cannot uniquely pair with an iOS device based on MAC address. The unique pairing works on Android, but an iOS device prints the following error messages. A thread has been started over at the Bluno / DFRobot forum concerning this issue.