question

Hi @kurtinge

It maybe worth trying to run the dbus-shelly.py driver in debug mode. Or at least add add print statements in there so you can see which part of the driver maybe isn't working. The other option is making a websocket client to see the data structure to confirm there hasnt been a change on shelly data structure side or if the victron driver needs updated?

Try changing port to 8000.

Hi @kurtinge

I've done some messing around using a test python script:

import asyncio
import websockets

async def echo(websocket, path):
    async for message in websocket:
        print(f"Received message from client: {message}")
        await websocket.send(message)

async def main():
    # Start the WebSocket server on localhost, port 8765
    async with websockets.serve(echo, "192.168.3.138", 8765):
        print("WebSocket server started on ws://192.168.3.138:8765")
        # Keep the event loop running forever
        await asyncio.Future()

# Run the main function to start the WebSocket server
asyncio.run(main())

Change it to your ip and it'll show you the data structure of the shelly device. The issue is the victron driver is written to get em0 data, so if you shelly device doesnt post to em:0 it wont work.

It's an easy fix however. You need to edit the python files in dbus-shelly folder, the file meter.py

You need to edit lines 129 i think. Where it says data['params']['em:0'] change the em:0 to whatever yours is for example i tested on shelly pro 1pm the data output looks like this:

Received message from client: {"src":"shellypro4pm-xxxxxx","dst":"ws","method":"NotifyStatus","params":{"ts":1712307840.20,"switch:2":{"id":2,"aenergy":{"by_minute":[0.000,0.000,0.000],"minute_ts":1712307839,"total":0.000}}}}

As you can see em:0 isn't there an instead it's switch:2 or whatever switch number you're using. Similarly the key's are different. So where victron driver is using

d["a_act_power"] it looks like this would just be d["a_power"]. You're better off using the test script above to see the data structure of your shelly device then editing the victron code to work with the data structure of your shelly device. Hope this helps

I'll raise the issue on github but not sure if it'll get looked at.

As i was looking on github i found someone else describing the exact solution:

https://github.com/victronenergy/dbus-shelly/issues/3

I'll debug over the weekend but I started fork and started integrating 1PM.

It's not done but started. I'll try debug it over the weekend (Need to upgrade by system first, running old venus os)

matt1309/dbus-shelly-1pmSupport: HTTP based driver for Shelly energy meters to be used on VenusOS (github.com)

Hi @kurtinge

I have 1PM pro.

But if you an send me what the data looks like for 1pm plus i can add that in.

You can use the below python script to see what data looks like. Edit the ip from 192.16.3.138 to your local ip of the device running the python script. Then setup shelly to use outbound websockets of whatever you ip is and port 8765 (in my example the machine running the script was running at 192.168..138).

If you then send me what data looks like i'll make sure my fork and work with that as well

import asyncio
import websockets
 
async def echo(websocket, path):
    async for message in websocket:
        print(f"Received message from client: {message}")
        await websocket.send(message)
 
async def main():
    # Start the WebSocket server on localhost, port 8765
    async with websockets.serve(echo, "192.168.3.138", 8765):
        print("WebSocket server started on ws://192.168.3.138:8765")
        # Keep the event loop running forever
        await asyncio.Future()
 
# Run the main function to start the WebSocket server
asyncio.run(main())

@matt1309
Did run your debug-script and it seems like switch:0 is the value. Inserted this in line 129 instad of the em:0 and rebooted. Same result from console, but some new lines in the logfile:

@4000000066129a2728470edc *** starting dbus-shelly ***
@4000000066129a2f08e08b7c INFO Starting main loop
@4000000066129c3c0a92ee9c INFO Waiting for localsettings
@4000000066129c3c0aae8904 INFO Connected to localsettings
@4000000066129c5e05c758e4 Error in connection handler
@4000000066129c5e05c7743c Traceback (most recent call last):
@4000000066129c5e05c77c0c File "/usr/lib/python3.8/site-packages/websockets/server.py", line 191, in handler
@4000000066129c5e05c78f94 await self.ws_handler(self, path)
@4000000066129c5e05c79b4c File "/opt/victronenergy/dbus-shelly/dbus_shelly.py", line 73, in __call__
@4000000066129c5e05c7aed4 await m.update(data)
@4000000066129c5e05c7b6a4 File "/opt/victronenergy/dbus-shelly/meter.py", line 134, in update
@4000000066129c5e05c9c214 s['/Ac/L1/Voltage'] = d["a_voltage"]
@4000000066129c5e05c9d1b4 KeyError: 'a_voltage'





Output from dbug-websocket:
WebSocket server started on ws://192.168.0.2:8765
Received message from client: {"src":"shellypro1pm-30c6f781a900","dst":"ws","method":"NotifyFullStatus","params":{"ts":2.29,"ble":{},"cloud":{"connected":false},"eth":{"ip":null},"input:0":{"id":0,"state":false
},"input:1":{"id":1,"state":false},"mqtt":{"connected":true},"switch:0":{"id":0, "source":"init", "output":false, "aenergy":{"total":4031.380}, "ret_aenergy":{"total":0.000},"temperature":{"tC":17.3, "tF":63.1}
},"sys":{"mac":"30C6F781A900","restart_required":false,"time":null,"unixtime":null,"uptime":2,"ram_size":243176,"ram_free":115008,"fs_size":524288,"fs_free":217088,"cfg_rev":50,"kvs_rev":0,"schedule_rev":0,"web
hook_rev":0,"available_updates":{},"reset_reason":3},"wifi":{"sta_ip":"192.168.0.24","status":"got ip","ssid":"Mavi","rssi":-56},"ws":{"connected":true}}}
Received message from client: {"src":"shellypro1pm-30c6f781a900","dst":"ws","method":"NotifyStatus","params":{"ts":2.29,"ws":{"connected":true}}}
Received message from client: {"src":"shellypro1pm-30c6f781a900","dst":"ws","method":"NotifyStatus","params":{"ts":2.32,"switch:0":{"id":0,"voltage":218.5}}}
Received message from client: {"src":"shellypro1pm-30c6f781a900","dst":"ws","method":"NotifyStatus","params":{"ts":1712494233.86,"cloud":{"connected":true}}}