ESPurna

ESPurna ("spark" in Catalan) is a custom C firmware for ESP8266 based smart switches. It was originally developed with the ITead Sonoff 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
• 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 using a non-intrusive current sensor (requires some hacking)
• Command line configuration

Index

• Supported hardware
• Build and flash the firmware
• Build and flash the filesystem
• Configuration
• Over-the-air updates
• Sensors
• Troubleshooting

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/.