# I2C with MQTT MangOH Yellow

**URL:** <https://mangoh.discourse.group/t/i2c-with-mqtt-mangoh-yellow/9175>\
**Category:** mangOH Yellow\
**Created:** [May 18, 2021, 9:26am UTC](https://mangoh.discourse.group/t/i2c-with-mqtt-mangoh-yellow/9175 "2021-05-18T09:26:59Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![jyijyi](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/jyijyi/32/997_2.png) [@jyijyi](https://mangoh.discourse.group/u/jyijyi)\
**Post date:** [May 18, 2021, 9:40am UTC](https://mangoh.discourse.group/t/i2c-with-mqtt-mangoh-yellow/9175/2 "2021-05-18T09:40:33Z")

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No, it does not need to use Airvantage.  
You can try the MQTT sample here:

> <https://github.com/legatoproject/legato-af/tree/master/apps/sample/mqtt>
>
> //github.com/legatoproject/legato-af/tree/master/apps/sample/mqtt

Previously someone makes it work on mosquitto server.

> [@mqttClient Service Connect error?](https://mangoh.discourse.group/t/mqttclient-service-connect-error/9093/88):
>
> Finally problem resolved: using mosquitto MQTT client and server must to be on the same wlan! I didn’t know it! The problem is that my wifi is 5G and my TaLON wifi card doesn’t read it: so my mangOH was on my phone’s lan and PC on WiFi. So I connected all on my phone’s lan and all work! Thank you all for the support, especially to @jyijyi . I’m so sorry to have bothered you, but it was a frustrating situation. Thanks again.

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