I’m working on a smart energy meter project using ESP32, SCT-013-030, and ZMPT101B. I’m sending real power readings to the Blynk app successfully, but I want to know how to store real power data over time so I can calculate total energy (kWh) and estimate the electricity cost.
Is there a way to log these values within the Blynk app (maybe using SuperChart or Datastreams)? Or do I need to calculate and store the energy on the ESP32 side?
Any tips or examples would be appreciated.