I understand that the XIAO nRF52840 has a bluetooth antenna, but I am still looking for ways to improve its range. either ArduinoBLE (library tweaks) or hardware based.
can someone stir me to the right direction, please and thank you…
Hi, I don’t think there are additional places for additional bluetooth antenna for wider range, nor the software way. Sorry.
Also, the 5V and 3.3V will be the best input voltage. Otherwise the board might be damaged.
Hope this can help you!
Make sure you only solder to one side of the unpopulated PDM pins. Or you can solder (carefully) directly to one of the two pins next two each other on the antenna chip.
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Had to do it like this because the PDM has a mic on the Sense-version. Works great so far, despite that I have bridged two pins on the antenna-chip by accident, doesn’t seem to make a difference. I used 0.5mm enameled copper wire ca. 30mm long.