I have two Microcontrollers which communicate over a bluetooth link (serial link, like RN-42). So far so good. Unfortunately the device is listed as a class 2 device and I noticed that the distance is indeed very limited.
Acoordingly I was wondering if it is somehow possible to mod the chip to act as a class 1 device. Is it enough to connect the chip to a better antenna? or do I need active amplification. In case I need active amplification I would appreciate if someone could point me to some tutorial, which help me getting started.