Atom Echo command start_conversation not working

Hi,

I try to start a conversation with my Atom Echo without using a wake word like “Hey Jarvis” but pressing a button which makes it listening. Unfortunate I don’t get it to work. I use Node Red with the start_conversation command without success.

Node Red flow:

[{"id":"375e4bf45bfc27df","type":"api-call-service","z":"4a9a90daf9391bb4","name":"Atom Echo listen","server":"d6e1a14d.333e1","version":7,"debugenabled":false,"action":"assist_satellite.start_conversation","floorId":[],"areaId":[],"deviceId":[],"entityId":["assist_satellite.atom_echo_wohnzimmer_assist_satellit"],"labelId":[],"data":"","dataType":"json","mergeContext":"","mustacheAltTags":false,"outputProperties":[],"blockInputOverrides":false,"domain":"assist_satellite","service":"start_conversation","output_location":"payload","output_location_type":"none","x":3200,"y":620,"wires":[[]]},{"id":"4c4a4dad406a876f","type":"inject","z":"4a9a90daf9391bb4","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"","payloadType":"date","x":3020,"y":620,"wires":[["375e4bf45bfc27df"]]},{"id":"d6e1a14d.333e1","type":"server","name":"Home Assistant","addon":true,"rejectUnauthorizedCerts":true,"ha_boolean":[],"connectionDelay":false,"cacheJson":false,"heartbeat":false,"heartbeatInterval":"","statusSeparator":"","enableGlobalContextStore":false},{"id":"33a9e647159f4e05","type":"global-config","env":[],"modules":{"node-red-contrib-home-assistant-websocket":"0.82.0"}}]

Hi, which code did you use to flash it and/or maybe share that so we can help you.

I just plugged it in and followed the general installation process.
Firmware: 26.6.1 (ESPHome 2026.5.3)

From. Where? There’s a few, it matters to know what the device supports.