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# OpenMQTTGateway
[![](https://github.com/1technophile/OpenMQTTGateway/blob/master/img/OpenMQTTGateway.jpg)](https://github.com/1technophile/OpenMQTTGateway/wiki)
## Overview
OpenMQTTGateway act as a WIFI or Ethernet gateway between your 433mhz/315mhz/Infrared signal and a MQTT broker. It is compatible with:
Arduino uno(limited)/mega(advised) + W5100
ESP8266: NodeMCU V1.0 NodeMCU V2.0, NodeMCU V3.0, ESP8266 12F and Wemos D1.
ESP8266: NodeMCU V1.0 NodeMCU V2.0, NodeMCU V3.0, ESP8266 12F, Sonoff RF and Wemos D1.
It enables to:
* Send RF signals corresponding to received MQTT data (MQTT->RF)
@@ -18,8 +17,6 @@ ESP8266: NodeMCU V1.0 NodeMCU V2.0, NodeMCU V3.0, ESP8266 12F and Wemos D1.
It supports also sensors; DHT, HC SR501, ADC, I2C bus, INA226
You can also upload the code to a Sonoff RF Bridge for 433mhz applications
## Functions:
* Bidirectional, the gateway can send and receive signals, for example if you have RF wall plug you can either control them with your home automation software (MQTT-->RF) or the physical remote control. When you press a button on the physical remote the wall plug will switch ON and the button in your home automation software (RF-->MQTT) will be updated.
* Signal duplicate removal, with RF of IR we get a lot of duplication, to avoid this the gateway is able to filter the number of code sent to the MQTT broker during a defined time `time_avoid_duplicate`.