I have a problem with the octosonarx2 circuit board.
I may have messed it up because I think the ultrasound sensors are working ok. I got a pretty cool soldering device that holds circuit boards in place and also some thinner solder. I think I may have messed up the octox2 board by hooking the wires to the arduino incorrectly. A replacement is not available because it’s been on backorder at tindie for a week.