Hey I hope the project is going well. Some information about the XAC v2 was recently posted in a different topic that I was unaware of, and I think is important to know if you do not already.
Since I’m unsure of the XAC v2’s default position for the S3 jumper, you will need to either:
1.Remove the S3 jumper completely, preventing the chance of the XAC v2 shorting the power supply to ground.
Or
2.Simplify the wiring diagram by using the S3 jumper properly, which effectively replaces the wire connected to the XAC v2’s COM terminal.