https://devzone.nordicsemi.com/f/nordic-q-a/43294/subscribing-to-different-topic-while-publishing-on-another-topicHi everyone, I am using nRF52 which has 52832 on it. Currently, I am working on 2 nRFs and one RPi with MQTT on the softdevice 132. One nRF is the publisher, another one is a sub and RPi is a router. Publisher senses the temperature and publish thisen-USTelligent Community 13Fri, 08 Mar 2019 15:55:50 GMThttps://devzone.nordicsemi.com/thread/175106?ContentTypeID=1Fri, 08 Mar 2019 15:55:50 GMT137ad170-7792-4731-bb38-c0d22fbe4515:208d7a70-051e-4695-9b87-dcd6be7178dfStian R&#248;ed Hafskjold<p>I started with the mqtt publisher example from SDK 15.2.0 and added the subscriber part to the main.c file. I&#39;m able to both subscribe and publish at the same time.</p> <p>Please note that m_connection_state changes from APP_MQTT_STATE_CONNECED to APP_MQTT_STATE_SUBSCRIBED in the subscriber example, so make sure that button 2 is checking for both states when you want to publish while subscribing.</p> <p>Attaching the main.c file for the modified mqtt publisher example. This is set up to subscribe to temp/state and publish on led/state. LED4 will toggle when a node publishes on temp/state.</p> <p></p> <p><a href="https://devzone.nordicsemi.com/cfs-file/__key/support-attachments/beef5d1b77644c448dabff31668f3a47-f8934d0eca95496389e4854af6db40b5/main.c">devzone.nordicsemi.com/.../main.c</a></p><div style="clear:both;"></div>