This version is not compatible with version 2026.1.3 of Home Assistant. 
EDIT: En allant sur le site officiel pour regarder les specs, apparemment elles gèrent le MQTT. Ce serait une piste à étudier non ?
J’ai regardé cette board : Dingtian
Sinon il y a Node-Red aussi !
EDIT 2 : En téléchargeant le SDK sur le site officiel, il y a tous les détails.
example SN is 100
MQTT id:
ETH:dingtian-relay100
WIFI:dingtian-wrelay100
notice: publish default send every 30 second
publish example value
/dingtian/relay100/out/lwt_availability online,offline
/dingtian/relay100/out/r1~8 ON or OFF
/dingtian/relay100/out/i1~8 ON or OFF
/dingtian/relay100/out/relay1~8 {"idx":"1","status":"OFF"}
/dingtian/relay100/out/input1~8 {"idx":"1","status":"HIGH"} or {"idx":"1","status":"LOW"}
/dingtian/relay100/out/ip 192.168.1.100
/dingtian/relay100/out/sn 1
/dingtian/relay100/out/mac bc:34:88:00:00:ff
/dingtian/relay100/out/input_cnt 4
/dingtian/relay100/out/relay_cnt 4
/dingtian/wrelay100/out/lwt_availability online,offline
/dingtian/wrelay100/out/r1~8 ON or OFF
/dingtian/wrelay100/out/i1~8 ON or OFF
/dingtian/wrelay100/out/relay1~8 {"idx":"1","status":"OFF"}
/dingtian/wrelay100/out/input1~8 {"idx":"1","status":"HIGH"} or {"idx":"1","status":"LOW"}
/dingtian/wrelay100/out/ip 192.168.1.100
/dingtian/wrelay100/out/sn 1
/dingtian/wrelay100/out/mac bc:34:88:00:00:ff
/dingtian/wrelay100/out/input_cnt 4
/dingtian/wrelay100/out/relay_cnt 4
subscribe example value
/dingtian/relay100/in/control {"type":"ON/OFF",'idx':'1',"status":"ON","time":"0","pass":"0"}
/dingtian/relay100/in/r1~8 ON or OFF
/dingtian/wrelay100/in/control {"type":"ON/OFF",'idx':'1',"status":"ON","time":"0","pass":"0"}
/dingtian/wrelay100/in/r1~8 ON or OFF
MQTT LWT topic
/dingtian/relay100/out/lwt_availability online,offline
/dingtian/wrelay100/out/lwt_availability online,offline
MQTT upgrade topic
/dingtian/relay100/out/upgrade_status upgrading,success,fail
/dingtian/relay100/in/upgrade {"upgrade_url":"https://192.168.1.9:8070/relay.dtf"}