ina219

I made a device to track battery discharge pattern, it works with Arduino and INA219 Sensor, as you can see in the schematic, the system is wired somehow with a common GND, when I put one battery in the device, it works as I expected with 3.9 Ohm resistor in the path, but when I add second and...

Hi, I'm working on project which includes INA219 for sensing solar panel voltage and current. I have found other threads discussing on this matter but couldn't get answer I'm looking for. Instead of using any battery, I'm only looking to calculate current and Voltage from solar panel using...