I solder some potentiometers, variable resistor, pressure pads, LED and switches. I solder them on a pcb board and I set the vdda into the pcb, so the electricity of the axoloti is going into the components and all the returns of the components are going into a PA, a PB or a PC. All the components are getting the same ground. I’m going to try to de-solder the components one by one to see what’s wrong. For the heating problem, the heat is coming from the center of the axoloti.