I'm familiar of course with the preferable way to mix audio, that is prior to amplification. However, I have a few mobile radios with roughly 1 watt audio outputs, which I would like to send their ...
I have a device that is sending 9600baud using only Tx, Rx, and Gnd. I am not sure, but I think the voltage is either the 3v or 5v level. I want to receive that serial data on my mobile phone. I ...