Hi Nicolas, As discussed in https://community.developer.bosch.com/t5/Technical-Support/SentDataOverMQTT-in-Workbench-3-6-1-how-to-connect-to-public/td-p/11804, from dashboard you can publish a led on/off message to XDK device with specific topic. Once published message is received in XDK device side (by subscribing a same topic), You can implement a logic to ON/OFF Led. For tracking purpose of message threads, please ''accept as solution'' if you got solution. Thank You 🙂
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