Interfacing Dutch Smart Meter

Due to the small form factor, low power consumption I’ve used the Orange Pi Zero LTS to make an interface to the Dutch Smart Meter (DSMR). In earlier post I showed explained the Serial Interface (P1) to the Dutch Smart Energy meters. I remade the physical interface to fit the casing I designed.

I wrote Java code to decode the datagram and control the serial connection. I dump the data to an API to save the data.

Overview and situation

The interfacing module slides into a slot that is available on the top of the energy meter. The display shows the date, time, uptime, temperature of the processor.

The PCB special designed for the Orange Pi Zero and this casing. It has the same electrical design as in the earlier post.

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