# \#arduinomega

**URL:** https://community.openenergymonitor.org/tag/arduinomega/266.md

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## [\[SOLVED\] Arduino Mega2560, ESP8266-01, MQTT problem receiving messages](https://community.openenergymonitor.org/t/solved-arduino-mega2560-esp8266-01-mqtt-problem-receiving-messages/2920)

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**Author:** [@hatfieldr](https://community.openenergymonitor.org/u/hatfieldr)\
**Replies:** 4\
**Last updated:** [11 January 2018 08:32 UTC](https://community.openenergymonitor.org/t/solved-arduino-mega2560-esp8266-01-mqtt-problem-receiving-messages/2920 "2018-01-11T08:32:38Z")

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I have an ESP8266-01 (AT command set, with 3.3v supply & level conversions) & Arduino Mega My MQTT broker is Mosquitto on RPi 3 - Emonpi 2016 The plan is to use openHab for control Arduino code: includes: WiFiEsp.h …