WirenBoard 6 и Weintek протокол MQTT

Контроллеры Wiren Board Wiren Board 6
,
9 
//07_05_test_01.js
var testString = {
  value: 30
};

log.info("testString:", testString)
jsonString = JSON.stringify(testString)
log.info("jsonString:", jsonString);

publish("/test/jsonTopic",jsonString)

И результат:

mosquitto_sub -v -t /test/#
/test/jsonTopic {"value":30}