Ultrasound sensor board not working

I have a problem with the octosonarx2 circuit board.

https://www.tindie.com/products/arielnh56/octosonarx2-connect-16-x-hc-sr04-to-arduino/

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.

 

4 wheel drive and 2 distance sensors

My project now has 4 motors and 2 distance sensors. It detects if it will hit something according to its sensors and will head back in reverse.

Powered by 16 AA batteries and 1 9V

I am now waiting on a part from tindie.com in order to connect more ultrasound distance sensors.