For advanced users, the PZEM-051 (V5.0) can be modified to pull data into a microcontroller. Check out community repositories like the bjkayani Power Meter Logger for wiring diagrams.

When powered on, the meter cycles through or displays:

Short press to toggle between and 100A modes. This ensures the meter calculates the mV signal from your shunt correctly. 💡 Pro Tips for Solar & Battery DIYers