Open source OpenDTU hardware

[chungpc]

Hi all,

I'm currently developing a open source hardware for the OpenDTU. This will allow NRF and CMT to be exist at the same board while having ATM90E26 as the energy monitoring to allow a net zero export feature. Is anyone here interested with that? Device is in stackable format.

[stefan123t]

Inetersting setup with a stack of PCBs.

As you want to add zero export functionality you may want to look at the Dynamic Power Limiter function and Power Meter options in the daughter project OpenDTU-OnBattery ?

I have described a possible PM+DPL setup with a Shelly Pro3EM as Power Meter (PM) here in issue #272.