Hi, I am placing an Arduino Mega 2560 and a HC-05 Bluetooth module inside an Aluminium box, which will be potted (epoxy resin filled) and then installed inside a Stainless Steel box.
Obviously, being inside all this material, I do not expect the Bluetooth to work! I have seen some topics about adding an antenna, but they all talked about just using a single copper wire, etc. I would like this to have a professional-ish looking antenna, which will need to be mounted on the outside of the Stainless Steel box, and be somewhat waterproof.
I am looking for any advice regarding sourcing a good antenna, and how to go about adding it to the HC-05 (I believe I need to cut the link to the pre-existing antenna?)