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- # ESPurna
-
- ESPurna ("spark" in Catalan) is a custom C firmware for ESP8266 based smart switches.
- It was originally developed with the **[ITead Sonoff][1]** in mind but now it supports a growing number of ESP8266-based boards.
-
- ## Features
-
- * **Asynchronous WebServer for configuration** and simple relay toggle with **basic authentication**
- * Communication between webserver and webclient via **websockets** with secure ticket check
- * **Flashing firmware Over-The-Air** (OTA)
- * Up to **3 configurable WIFI networks**, connects to the strongest signal
- * **MQTT support** with configurable host and topic
- * **REST API** to query and set relay statuses
- * Support for **multi-relay boards** (Sonoff Dual, Electrodragon ESP Relay Board,...)
- * Manual switch ON/OFF with button (single click the button)
- * AP mode backup (double click the button)
- * Manual reset the board (long click the button)
- * Visual status of the connection via the LED
- * **Alexa** integration (Amazon Echo or Dot) by emulating a Belkin WeMo switch
- * Support for **automatic over-the-air updates** through the [NoFUSS Library][2]
- * Support for **DHT22** and **DS18B20** sensors
- * Support for the **HLW8012** power sensor present in the Sonoff POW
- * Support for **current monitoring** through the [EmonLiteESP Library][3] using a non-intrusive current sensor ([requires some hacking][4])
- * Command line configuration
-
- ## Index
-
- * [Supported hardware](docs/Hardware.md)
- * [Build and flash the firmware](docs/Firmware.md)
- * [Build and flash the filesystem](docs/Filesystem.md)
- * [Configuration](docs/Configuration.md)
- * [Over-the-air updates](docs/OTA.md)
- * [Sensors](docs/Sensors.md)
- * [Troubleshooting](docs/Troubleshooting.md)
-
- ## License
-
- Copyright (C) 2016 by Xose Pérez (@xoseperez)
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-
- [1]: https://www.itead.cc/sonoff-wifi-wireless-switch.html
- [2]: https://bitbucket.org/xoseperez/nofuss
- [3]: https://bitbucket.org/xoseperez/emonliteesp
- [4]: http://tinkerman.cat/your-laundry-is-done/
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