WNeoCoolcam

Replaces original Tuya firmware on NeoCoolcam or Sonoff devices with ESP8266 wifi module. The firmware is tested with following devices:

• Neo Coolcam
• Sonoff Mini
• Sonoff Basic
• Sonoff 4-channel

Features

• Enables switches to communicate via MQTT and/or Mozilla Webthings
• Configuration of connection and device parameters via web interface
• Reading and setting of all parameters via MQTT
• Reading and setting of main parameters via Webthing
• Switch and relay can be controlled separatly. For example, a Sonoff Mini can used use for a second switch to control a relay of another Sonoff Mini. Logic must be done via MQTT, but an unused relay can be taken out of function.

Installation

To install the firmware, follow instructions here:
https://github.com/klausahrenberg/WThermostatBeca/blob/master/Flashing.md

Initial configuration

After installation, the device configuration is available at http://<device_ip>/config

Integration in Webthings

This firmware supports Mozilla Webthings directly. With Webthings you can control the device via the Gateway - inside and also outside of your home network. No clunky VPN, dynDNS solutions needed to access your home devices. I recommend to run the gateway in parallel to an MQTT server and for example Node-Red. Via MQTT you can control the device completely and logic can be done by Node-Red. Webthings is used for outside control of main parameters.

Json structure

Firmware provides different json messages:

1. State report
2. Device information (at start of device to let you know the topics and ip)

1. State report

MQTT: State report is provided every 5 minutes, at change of a parameter or at request via message with empty payload to <your_mqtt_topic>/switch/<your_state_topic>
Webthing: State report can be requested by: http://<device_ip>/things/switch/properties

{
    "idx":"<your_idx>",
    "ip":"192.168.x.x",
    "firmware":"x.xx",
    "on":false
}

3. Device information

MQTT: At start of device to let you know the topics and ip to devices/switch
Webthing: n.a.

{
    "url":"http://192.168.x.x/things/switch",
    "ip":"192.168.x.x",
    "stateTopic":"<your_mqtt_topic>/switch/<your_state_topic>",
    "setTopic":"<your_mqtt_topic>/switch/<your_set_topic>"
}

Modifying parameters via MQTT

Send a complete json structure with changed parameters to <your_mqtt_topic>/switch/<your_set_topic>, e.g. neocoolcam/switch/set. Alternatively you can set single values, modify the topic to <your_mqtt_topic>/switch/<your_set_topic>/<parameter>, e.g. neocoolcam/switch/set/on. The payload contains the new value.

Build this firmware from source

For build from sources you can use the Arduino-IDE, Atom IDE or other. All sources needed are inside the folder 'WNeoCoolcam' and my other library: https://github.com/klausahrenberg/WAdapter. Additionally you will need some other libraries: DNSServer, EEPROM (for esp8266), ESP8266HTTPClient, ESP8266mDNS, ESP8266WebServer, ESP8266WiFi, Hash, NTPClient, Time - It's all available via board and library manager inside of ArduinoIDE