Connection to EVBox Livo charger seems to fail

[abko]

I am trying to connect my charger to the plugin in Home Assistant, but believe the connection fails.

I am no expert so would appreciate any hints to narrow down the problem.

I am using these versions:
OCPP v0.6.1
HACS 2.01
Home Assistant Core 2024.12.2
Home Assistant Frontend 20241127.7

I can see the BootNotification message in the logs and data from it in Home Assistant, but then it seems to stop.

Not sure if something is wrong in the certificate I tried to install for Home assistant/ the ocpp server, or if it has to do with the specific charger implementation, e.g. a missing password or something else.

Any hints are appreciated.

Debug log

raspberrypivijf:/config# cat home-assistant.log | grep ocpp
2024-12-17 11:16:04.218 WARNING (SyncWorker_0) [homeassistant.loader] We found a custom integration ocpp which has not been tested by Home Assistant. This component might cause stability problems, be sure to disable it if you experience issues with Home Assistant
2024-12-17 11:16:06.994 WARNING (MainThread) [homeassistant.util.loop] Detected blocking call to load_cert_chain with args (<ssl.SSLContext object at 0x7ffefd2f9250>, '/config/fullchain.pem') inside the event loop by custom integration 'ocpp' at custom_components/ocpp/api.py, line 104: self.ssl_context.load_cert_chain( (offender: /config/custom_components/ocpp/api.py, line 104: self.ssl_context.load_cert_chain(), please create a bug report at https://github.com/lbbrhzn/ocpp/issues
File "/config/custom_components/ocpp/init.py", line 71, in async_setup_entry
File "/config/custom_components/ocpp/api.py", line 113, in create
File "/config/custom_components/ocpp/api.py", line 104, in init
2024-12-17 11:19:49.202 WARNING (MainThread) [custom_components.ocpp] Skipping websocket subprotocol validation
2024-12-17 11:19:49.423 INFO (MainThread) [ocpp] EVB-500-019-341: receive message [2,"1d58f42a-be8c-49ca-a456-eeefcc58e01c","BootNotification",{"reason":"PowerUp","chargingStation":{"vendorName":"EVBox","model":"Livo","firmwareVersion":"v5.24.0;v1.46.1","serialNumber":"oVUEYQCw8pArNfVvp4SB72bw3"}}]
2024-12-17 11:19:49.427 WARNING (MainThread) [homeassistant.util.loop] Detected blocking call to open with args ('/usr/local/lib/python3.13/site-packages/ocpp/v201/schemas/BootNotificationRequest.json', 'r') inside the event loop by custom integration 'ocpp' at custom_components/ocpp/chargepoint.py, line 514: await super()._handle_call(msg) (offender: /usr/local/lib/python3.13/site-packages/ocpp/messages.py, line 164: with open(path, "r", encoding="utf-8-sig") as f:), please create a bug report at https://github.com/lbbrhzn/ocpp/issues
File "/usr/local/lib/python3.13/site-packages/ocpp/charge_point.py", line 238, in start
File "/usr/local/lib/python3.13/site-packages/ocpp/charge_point.py", line 261, in route_message
File "/config/custom_components/ocpp/chargepoint.py", line 514, in _handle_call
2024-12-17 11:19:49.439 INFO (MainThread) [ocpp] EVB-500-019-341: send [3,"1d58f42a-be8c-49ca-a456-eeefcc58e01c",{"currentTime":"2024-12-17T10:19:49.428805+00:00","interval":10,"status":"Accepted"}]
2024-12-17 11:19:51.437 INFO (MainThread) [ocpp] EVB-500-019-341: send [2,"03758573-281e-4b15-b4c6-e9c9b9ba2bf2","GetBaseReport",{"requestId":1,"reportBase":"FullInventory"}]
File "/config/custom_components/ocpp/chargepoint.py", line 332, in post_connect
File "/config/custom_components/ocpp/chargepoint.py", line 266, in fetch_supported_features
File "/config/custom_components/ocpp/ocppv201.py", line 206, in get_supported_features
File "/config/custom_components/ocpp/ocppv201.py", line 126, in _get_inventory
File "/usr/local/lib/python3.13/site-packages/ocpp/charge_point.py", line 404, in call
File "/usr/local/lib/python3.13/site-packages/ocpp/charge_point.py", line 457, in _send
2024-12-17 12:07:57.451 WARNING (MainThread) [custom_components.ocpp] Skipping websocket subprotocol validation
2024-12-17 12:07:57.451 INFO (MainThread) [custom_components.ocpp] Charger websocket path=/EVB-500-019-341
2024-12-17 12:07:57.451 INFO (MainThread) [custom_components.ocpp] Charger EVB-500-019-341 reconnected to 0.0.0.0:9123.
2024-12-17 12:07:57.452 DEBUG (MainThread) [custom_components.ocpp] Reconnect websocket to EVB-500-019-341
2024-12-17 12:07:57.616 INFO (MainThread) [ocpp] EVB-500-019-341: receive message [2,"82826ea1-2913-4772-9a1e-8a95b38fada6","BootNotification",{"reason":"PowerUp","chargingStation":{"vendorName":"EVBox","model":"Livo","firmwareVersion":"v5.24.0;v1.46.1","serialNumber":"oVUEYQCw8pArNfVvp4SB72bw3"}}]
2024-12-17 12:07:57.617 DEBUG (MainThread) [custom_components.ocpp] Updating device info Livo: {'vendor_name': 'EVBox', 'model': 'Livo', 'firmware_version': 'v5.24.0;v1.46.1', 'serial_number': 'oVUEYQCw8pArNfVvp4SB72bw3'}
2024-12-17 12:07:57.629 INFO (MainThread) [ocpp] EVB-500-019-341: send [3,"82826ea1-2913-4772-9a1e-8a95b38fada6",{"currentTime":"2024-12-17T11:07:57.617135+00:00","interval":10,"status":"Accepted"}]
2024-12-17 12:07:57.714 DEBUG (MainThread) [custom_components.ocpp] Connection closed to 'EVB-500-019-341': no close frame received or sent
2024-12-17 12:07:57.714 INFO (MainThread) [custom_components.ocpp] Charger EVB-500-019-341 disconnected from 0.0.0.0:9123.
2024-12-17 12:07:59.630 INFO (MainThread) [ocpp] EVB-500-019-341: send [2,"e812e79a-559b-40bb-9328-4b2974f77606","GetBaseReport",{"requestId":1,"reportBase":"FullInventory"}]
File "/config/custom_components/ocpp/chargepoint.py", line 332, in post_connect
File "/config/custom_components/ocpp/chargepoint.py", line 266, in fetch_supported_features
File "/config/custom_components/ocpp/ocppv201.py", line 206, in get_supported_features
File "/config/custom_components/ocpp/ocppv201.py", line 126, in _get_inventory
File "/usr/local/lib/python3.13/site-packages/ocpp/charge_point.py", line 404, in call
File "/usr/local/lib/python3.13/site-packages/ocpp/charge_point.py", line 457, in _send
raspberrypivijf:/config# cat home-assistant.log | grep ocpp |

more
2024-12-17 11:16:04.218 WARNING (SyncWorker_0) [homeassistant.loader] We found a custom integration ocpp which has not been tested by Home Assistant. This component might cause stability problems, be sure to disable it if you experience issues with Home Assistant
2024-12-17 11:16:06.994 WARNING (MainThread) [homeassistant.util.loop] Detected blocking call to load_cert_chain with args (<ssl.SSLContext object at 0x7ffefd2f9250>, '/config/fullchain.pem') inside the event loop by custom integration 'ocpp' at custom_components/ocpp/api.py, line 104: self.ssl_context.load_cert_chain( (offender: /config/custom_components/ocpp/api.py, line 104: self.ssl_context.load_cert_chain(), please create a bug report at https://github.com/lbbrhzn/ocpp/issues
File "/config/custom_components/ocpp/init.py", line 71, in async_setup_entry
File "/config/custom_components/ocpp/api.py", line 113, in create
File "/config/custom_components/ocpp/api.py", line 104, in init
2024-12-17 11:19:49.202 WARNING (MainThread) [custom_components.ocpp] Skipping websocket subprotocol validation
2024-12-17 11:19:49.423 INFO (MainThread) [ocpp] EVB-500-019-341: receive message [2,"1d58f42a-be8c-49ca-a456-eeefcc58e01c","BootNotification",{"reason":"PowerUp","chargingStation":{"vendorName":"EVBox","model":"Livo","firmwareVersion":"v5.24.0;v1.46.1","serialNumber":"oVUEYQCw8pArNfVvp4SB72bw3"}}]
2024-12-17 11:19:49.427 WARNING (MainThread) [homeassistant.util.loop] Detected blocking call to open with args ('/usr/local/lib/python3.13/site-packages/ocpp/v201/schemas/BootNotificationRequest.json', 'r') inside the event loop by custom integration 'ocpp' at custom_components/ocpp/chargepoint.py, line 514: await super()._handle_call(msg) (offender: /usr/local/lib/python3.13/site-packages/ocpp/messages.py, line 164: with open(path, "r", encoding="utf-8-sig") as f:), please create a bug report at https://github.com/lbbrhzn/ocpp/issues
File "/usr/local/lib/python3.13/site-packages/ocpp/charge_point.py", line 238, in start
File "/usr/local/lib/python3.13/site-packages/ocpp/charge_point.py", line 261, in route_message
File "/config/custom_components/ocpp/chargepoint.py", line 514, in _handle_call
2024-12-17 11:19:49.439 INFO (MainThread) [ocpp] EVB-500-019-341: send [3,"1d58f42a-be8c-49ca-a456-eeefcc58e01c",{"currentTime":"2024-12-17T10:19:49.428805+00:00","interval":10,"status":"Accepted"}]
2024-12-17 11:19:51.437 INFO (MainThread) [ocpp] EVB-500-019-341: send [2,"03758573-281e-4b15-b4c6-e9c9b9ba2bf2","GetBaseReport",{"requestId":1,"reportBase":"FullInventory"}]
File "/config/custom_components/ocpp/chargepoint.py", line 332, in post_connect
File "/config/custom_components/ocpp/chargepoint.py", line 266, in fetch_supported_features
File "/config/custom_components/ocpp/ocppv201.py", line 206, in get_supported_features
File "/config/custom_components/ocpp/ocppv201.py", line 126, in _get_inventory
File "/usr/local/lib/python3.13/site-packages/ocpp/charge_point.py", line 404, in call
File "/usr/local/lib/python3.13/site-packages/ocpp/charge_point.py", line 457, in _send
2024-12-17 12:07:57.451 WARNING (MainThread) [custom_components.ocpp] Skipping websocket subprotocol validation
2024-12-17 12:07:57.451 INFO (MainThread) [custom_components.ocpp] Charger websocket path=/EVB-500-019-341
2024-12-17 12:07:57.451 INFO (MainThread) [custom_components.ocpp] Charger EVB-500-019-341 reconnected to 0.0.0.0:9123.
2024-12-17 12:07:57.452 DEBUG (MainThread) [custom_components.ocpp] Reconnect websocket to EVB-500-019-341
2024-12-17 12:07:57.616 INFO (MainThread) [ocpp] EVB-500-019-341: receive message [2,"82826ea1-2913-4772-9a1e-8a95b38fada6","BootNotification",{"reason":"PowerUp","chargingStation":{"vendorName":"EVBox","model":"Livo","firmwareVersion":"v5.24.0;v1.46.1","serialNumber":"oVUEYQCw8pArNfVvp4SB72bw3"}}]
2024-12-17 12:07:57.617 DEBUG (MainThread) [custom_components.ocpp] Updating device info Livo: {'vendor_name': 'EVBox', 'model': 'Livo', 'firmware_version': 'v5.24.0;v1.46.1', 'serial_number': 'oVUEYQCw8pArNfVvp4SB72bw3'}
2024-12-17 12:07:57.629 INFO (MainThread) [ocpp] EVB-500-019-341: send [3,"82826ea1-2913-4772-9a1e-8a95b38fada6",{"currentTime":"2024-12-17T11:07:57.617135+00:00","interval":10,"status":"Accepted"}]
2024-12-17 12:07:57.714 DEBUG (MainThread) [custom_components.ocpp] Connection closed to 'EVB-500-019-341': no close frame received or sent
2024-12-17 12:07:57.714 INFO (MainThread) [custom_components.ocpp] Charger EVB-500-019-341 disconnected from 0.0.0.0:9123.
2024-12-17 12:07:59.630 INFO (MainThread) [ocpp] EVB-500-019-341: send [2,"e812e79a-559b-40bb-9328-4b2974f77606","GetBaseReport",{"requestId":1,"reportBase":"FullInventory"}]
File "/config/custom_components/ocpp/chargepoint.py", line 332, in post_connect
File "/config/custom_components/ocpp/chargepoint.py", line 266, in fetch_supported_features
File "/config/custom_components/ocpp/ocppv201.py", line 206, in get_supported_features
File "/config/custom_components/ocpp/ocppv201.py", line 126, in _get_inventory
File "/usr/local/lib/python3.13/site-packages/ocpp/charge_point.py", line 404, in call
File "/usr/local/lib/python3.13/site-packages/ocpp/charge_point.py", line 457, in _send

[drc38]

In const.py try changing DEFAULT_SUBPROTOCOL = "ocpp1.6,ocpp2.0.1" with DEFAULT_SUBPROTOCOL = "ocpp1.6"

[abko]

Thanks @drc38. I’ll try it as soon as I am at home. Note the charger only supports 2.01, so I will try that.

[drc38]

Thanks @drc38. I’ll try it as soon as I am at home. Note the charger only supports 2.01, so I will try that.

If it only supports 2.0.1 then ignore my comment above, I thought it was perhaps selecting the wrong protocol. I have no experience with 2.0.1, @ars3niy may have some suggestions on why it's not working.