3-Phase BL0906 Energy Metering Schematic

I need a complete schematic that lets the BL0906 energy-meter IC into a three-phase design and talk to it through a standalone STM32F103CBT6. The STM32 only has one job: grab raw registers from the BL0906, crunch RMS voltage and current, active power, active energy, fault flags and line frequency, then pass the results to my main controller (an ESP32) over SPI, which is the fixed interface for this project.

Key electrical details
• Current input must accept either conventional CTs or voltage-output sensors through a jumper-selectable.
• Voltage sensing is handled by a ZMPT101B module.
• I want a well-calibrated passive filter stage on every phase to tame mains transients and high-frequency noise before they reach the BL0906. Keep the cut-off practical for 50/60 Hz metering accuracy while giving good surge immunity.
• Calibration option required for accuracy.

What I expect from you
• A clear, production-ready schematic (PDF + editable file in KiCad ).
• Annotated BOM with part numbers that are easy to source.
• Brief design notes explaining CT burden selection, jumper logic and the passive filter design so I can tweak values if my sensor mix changes later.