Hey all, I have small issue that I bet there is a really easy solution to. I'm creating a wireless APRS GPS tracker and as the name implies, I'm using a GPS for position data. Now, I'm using an ATMega328p and I was just going to use software serial for the GPS, but I found that when the APRS data (which comes out as an audio signal) is transmitting and the GPS tries to send data, the audio becomes distorted and doesn't get decoded by the receiving software. Even when this didn't happen, I found software serial to be unreliable at best. I tried to disable the software serial port when I started transmitting but for some reason that didn't work either. I connected the GPS to the hardware serial port and everything worked great, with one problem, I had to short a pin on the GPS to disable it whenever I wanted to upload a new sketch, or else it would shoot me an error. Now, that's fine and all but I am trying to make this into a product, and the GPS module that I want to use doesn't have a disable pin, so I was wondering if there was an easy software/hardware fix to this.