# Publish in topic with iot bit 1.6

**URL:** <https://forum.makecode.com/t/publish-in-topic-with-iot-bit-1-6/15678>\
**Category:** micro:bit\
**Created:** [October 1, 2022, 9:27pm UTC](https://forum.makecode.com/t/publish-in-topic-with-iot-bit-1-6/15678 "2022-10-01T21:27:23Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![naim514](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.makecode.com/naim514/32/5634_2.png) [@naim514](https://forum.makecode.com/u/naim514)\
**Post date:** [October 1, 2022, 9:27pm UTC](https://forum.makecode.com/t/publish-in-topic-with-iot-bit-1-6/15678/1 "2022-10-01T21:27:23Z")

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hi i connect to the public broker ([broker.dasboardmqtt.com](http://broker.dasboardmqtt.com)) with my iot bit 1.6 using microbit but i can´t publish in the topic or subscribe to it  
but when i use mqtt dash with my smartphone or with my browser i publish and i subscribe and every thing works well  
please can you help me why i don´t succeed to publish …  
thx