Device Information:

• Name: EARU 3-Phase Breaker Meter
• Model: EAMPDW-TY-63
• Product ID: nopfbtfxnwqcrg5y
• Config file: earu_3phase_breaker.yaml

Functionality:

• Control: Main Switch (on/off).
• Metering: Total Energy, Energy Today, Energy This Month (working natively).
• Settings: Over/Under Voltage, Over Current, Leakage protection.

Note on Phase Measurements (Complex Data):
The device transmits real-time metrics (Voltage, Current, Power) for each phase via DPs 6, 7, and 8 encoded as a Base64 string.
Currently, I have exposed these DPs as diagnostic string sensors (Phase A raw, etc.).

Decoding Logic for Maintainers:
I have reverse-engineered the Base64 format. It decodes into an 8-byte array (Big Endian):

• Voltage: Bytes 0-1 (divide by 10)
• Current: Bytes 2-4 (divide by 1000)
• Power: Bytes 5-7 (divide by 1)

Example Python decoding logic:

# Assuming 'decoded' is the byte array from base64
volts = (decoded[0] << 8 | decoded[1]) / 10.0
amps = (decoded[2] << 16 | decoded[3] << 8 | decoded[4]) / 1000.0
watts = (decoded[5] << 16 | decoded[6] << 8 | decoded[7])

I'm submitting the YAML with raw sensors so users can at least control the device and use template sensors for decoding until native base64_struct support is added to the integration.