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Re: ESP with MODBUS protocol

PostPosted: Sat May 30, 2015 5:40 am
by Aledav
Hello,
I would like to implement an energy meter wifi low cost, to measure the electrical parameters as KWh,V,A,W,Hz,pf....
I attach the schematic my project, and datasheets of energy meter Modbus RTU.
You see in this small project the possibility of making bussines? ;)
We want to implement this project together?

Re: ESP with MODBUS protocol

PostPosted: Sat May 30, 2015 8:22 am
by Aledav
I don't wait for shipping from China, I bought the sdm120c in an online shop in Italy (where i live), but I saw a good deal on:

http://it.aliexpress.com/store/product/SDM120C-Single-Phase-Two-Wire-Din-Rail-Energy-Meter-with-RS485-Modbus-and-Pulse-Output-CE/529519_32349129725.html

Re: ESP with MODBUS protocol

PostPosted: Mon Jul 13, 2015 4:38 am
by jh1995
@Aledav, have you got any update on this project? I would like to implement it with the Arduino-based IDE. But I have no previous experience with MODBUS/RS485.

Before shopping for the needed hardware I would appreciate a hint on go/nogo ;)

Thanks.

Re: ESP with MODBUS protocol

PostPosted: Tue Jul 14, 2015 5:36 pm
by tytower
[quote="Aledav"][quote]
I'll give you a hand to develop this if you give me the nod and some time to get the parts together. I can do the code if its doable.

Found nothing on ebay but maybe ali
This seems good for 240 Volt
http://www.aliexpress.com/item/DRS-205C ... 11503.html