Technically, you could connect this directly to your PC — or, if you're feeling crafty, consider a small Arduino or Raspberry ... pins should have its own shunt resistor. With the RTX 30 series ...

The relatively simple modification to the first-generation Insight involves a shunt resistor, which lets the computer sense the amount of current being drawn from the hybrid battery and delivered ...

There’s many different ways of measuring current. If it’s DC, the easiest way is to use a shunt resistor and measure the voltage across it, and for AC you could use a current transformer.