SparkFun Thing Plus - NINA-B306 Hookup Guide
NINA-B306 Range Limitations and Optimization
Due to the design limitations of this board along with the PCB antenna on the NINA-B306, the range of the radio is quite limited with a max range of 20-25 feet.
Users struggling with getting this range should increase the power of the antenna with the
Bluefruit.setTxPower(8) command. The
8 value in this command references the power in dBm. Refer to the Bluefruit52 library for valid values for this command.
If you need technical assistance and more information on a product that is not working as you expected, we recommend heading on over to the SparkFun Technical Assistance page for some initial troubleshooting.
If you don't find what you need there, the SparkFun Forums are a great place to find and ask for help. If this is your first visit, you'll need to create a Forum Account to search product forums and post questions.