more sonar

I've realized that only the SDA pins are messed up on my "green" and "orange" sonars. So I was able to reuse the same SCL pin and just have the SDA pins connected to different pins. So instead of the original 2 pins used up I now have 3. Better than having to get new sonar. Unfortunately, I think they can still only transmit. Have to also re-solder green one.