<p>Note: This test was run on a the Adafruit Feather Dev board, which uses the Raytac MDBT42Q module, incorporating the NRF52. The module retails for $7, the development board retails $24. Other modules are available for $5 from Fanstel.</p>
<p>This test was run on a board built around the Fanstel BC832 module. The module retails for $7, but other modules are available for $5 from Fanstel.</p>