I get this fluctuating 0.9 volts even when the shunt is unhooked so something is really weird here. I enabled the shunt variables but they don't make much sense either way. The circuit I use is a crowtail INA219B, I don't know if it handles the variables differently but will start to look into it.
It turns out I'm an idiot. I've been running this from usb to be able to monitor it, and how could it sense voltage if it doesn't have a common ground? In the meantime I think I managed to burn my IDA219 but I think we are getting somewhere.
It turns out I'm an idiot. I've been running this from usb to be able to monitor it, and how could it sense voltage if it doesn't have a common ground? In the meantime I think I managed to burn my IDA219 but I think we are getting somewhere.