(03-20-2026, 07:24 AM)spacerunner Wrote: We are currently in the process of implementing several Nxx units into a larger building project. Unfortunately, as Painy has stated before, there are some important informations missing in the documentation. I would greatly appreciate if the missing information would be Mae available here in the forum or on the documentation first. Videos can be helpful, but more detailed written information is even more valuable.

Therefor, I want to ask for:

1. ARM source code

Would you be willing to always share the current ARM source code (corresponding for example to -> N102030_KU_V20_260305SP.zip binary) here in the forum? BL0910 documentation is widely available in detail, but the Arm chip sitting between the ESP32 and the BL0910 is the blind spot. Understanding / being able to debug / customize the current ARM firmware would greatly help to improve the unit.

2. CT ratios

Please document on how to adjust the CT ratios per channel, also via ESPHome. 2000:1 is by far not suitable for all needs. Especially for lower current / low power measurements.

3. CT input limits documentation

Please document the maximum input limit (mA) of the Nxx units. In combination with setting / adjusting the CT ratios per channel, this will enable to pick the right CTs for the individual use case.

4. BL0910 Active Power registers

Like Painys problem before, maybe there is a way to manually register the active power for a channel in the BL0910 internal registers? This would allow to, for example, connect CT channel 17 to the voltage input of voltage channel 1 (phase 1). The reason is simple, and directly connected to Painys issue. Real world scenario here: We have a N30 interface but need to measure

  - 15 datapoints on Phase 1
  - 7 datapoints on Phase 2
  - 6 datapoints on phase 4

Not possible at the moment.

Thank four for helping !