JLCPCB – My blog

26 augustus 202026 augustus 2020

New project: ongoing … Active P1 Splitter

In the last few months I’ve made over 40+ P1 modules. Each module I’ve sent to the customer is fully tested on my own P1 meter. That means each time I have to disconnect my own, to connect the to-be-tested module. Now I’m lazy and don’t like to connect my own module each time (read: I just want to make/start a new project 😂). So I figured I wanted a splitter of which each port acted like a P1 interface.

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1 augustus 202026 augustus 2020

P1 Ethernet v2, v2.1 and v2.2 (sorry, forgot to write 🤭)

When I ordered the USR-TCP232-T2, I also did order some other ethernet modules to experiment with: The Eport E20. These looked better than the USR’s so I thought just try them to see how they work. And so the story began 🙂

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23 mei 202026 augustus 2020

P1 ESP8266 adapter

Not really needed, yet I wanted to make/design something. I also wanted to try to build something with an ESP8266 (without development board). I still had some SMD components from my previous build: P1 to Ethernet
So I thought, why not a wireless version?

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19 mei 202026 augustus 2020

P1 to ethernet

For a long time I’ve used the common P1-USB cable which can be connected to a Raspberry Pi or any other computer. Since the last changes in my network and server setup, I had no server in the meter cupboard. Everything moved to my new office. So it was time to read out the P1 smart meter via the network. This can easily be done via an ESP32/ESP8266 over the WiFi, yet I like to connect as much via wire as possible. So the new challenge started …

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