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mce35 / Domoticz-PZEM-004T

PZEM-004T plugin for Domoticz
GNU General Public License v3.0
4 stars 1 forks source link

Mode PZEM in one bus #1

Closed CreasolTech closed 8 months ago

CreasolTech commented 1 year ago

I'm just trying your Domoticz plugin with PZEM-016. It works great! I had only a problem with the python3-pymodbus library installed with apt-get (raspbian): I had to 

apt purge python3-pymodbus
pip3 install python3-pymodbus

If you are still involved in this project, I suggest you to add a slave parameter where it's possible to specify one or more slave addresses: slave: 1,2,3,4,12,15 for example to have 6 PZEM devices connected to the same bus . Unit 1-4 associated to the first PZEM device, 9-12 to the second, 17-20 to the third, .... Please let me know you think about. Thanks for now for the good plugin. Paolo

mce35 commented 1 year ago

I am using pymodbus through pip as well, version 3.2.2, the version in raspbian is too old.

Having multiple PZEM connected to the same bus is in the TODO list but I didn't get time to look at it.

If you have some time to implement it, any PR is welcome :)

mce35 commented 9 months ago

Hello @CreasolTech If you are still using this plugin, I added the possibility to read multiple meters on the same bus.

I didn't test it as I have only 1 meter connected.

After updating the plugin you should have a new parameter in domoticz:

image

Let me know if it works!

CreasolTech commented 9 months ago

Thanks @mce35 . I'm really sorry I did not informed you that I already wrote a plugin doing that: https://github.com/CreasolTech/domoticz-pzem-016 I also have a single PZEM module, so I didn't test more than one plugin at the same bus ;-) , but I've tested different types of devices working at the same bus by using different plugins (sometimes conflicting each-other) and it works quite good.