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README.md
( Work In Progress ) Sonoff-Tasmota KNX
Sonoff-Tasmota_KNX is a modification for Sonoff-Tasmota to add to its features a basic functionality of the KNX IP Protocol.
This repository is kept updated with the Original Sonoff-Tasmota.
KNX Explanation
The KNX IP Protocol is an international open standard for smart homes and smart buldings automation. It is a decentraliced system. Each device can talk directly to each other without the need of a central controller or server. Any panel or server is just for telesupervision and for sending requests. KNX IP Protocol uses a UDP multicast on 224.0.23.12:3671.
Each device has a physical address ( like a MAC ) as 1 . 1 . 0 and that address is used for configuration purposes.
Each device can be configured with group addresses as 2 / 2 / 1 and that address can be used for sending/receiving commands. So, for example, if 2 devices that are configured with the 2 / 2 / 1 for turning on/off their outputs, and other device send Turn ON command to 2 / 2 / 1, both devices will turn on their outputs.
Integration
Several home automation systems have KNX support. For example, Home Assistant has a XKNX Python Library to connect to KNX devices using a KNX Router. If you don't have a KNX Router, you can use a Software KNX Router like KNXd on the same Raspberry Pi than Home Assistant. KNXd is used by Home Assistant for reading this UDP Multicast, although KNXd has other cool features that need extra hardware like connect to KNX devices by Twister Pair, Power Line or RF.
Requirements
-
ESP KNX IP Library (async-udp branch) with the modifications requested on PR#48 and PR#52
-
ESPAsyncUDP Library with the modifications requested on PR #21. This Library is used by ESP KNX IP Library.
A copy of both libraries with the modifications needed is available at:
- https://github.com/ascillato/Sonoff-Tasmota_KNX/tree/development/lib/esp-knx-ip-async-udp
- https://github.com/ascillato/Sonoff-Tasmota_KNX/tree/development/lib/ESPAsyncUDP-master
Screenshots of the KNX Configuration Menu
Development Road Map
For Sonoff-Tasmota_KNX:
- Add Web Menu
- Add Feature to Receive telegrams and modify Relay Status
- Add Feature to Receive telegrams from multiple Group Addresses to modify just one relay status (useful for scenes)
- Add Feature to Send telegrams of relay status change
- Add Feature to Send telegrams of one relay status to multiple Group Addresses (useful for scenes)
- Add Feature to Send telegrams of button pressed
- Add Feature to receive telegrams to toggle relay status
- Add Feature to read Temperature, Humidity from Tasmota
- Add Feature to send Temperature, Humidity by a set interval (tasmota teleperiod)
- Add Feature to receive command to read temperature, Humidity
- Add Feature to recognize Tasmota config to show the same amount of relays, buttons, etc
- Add Feature to Save Config
- Add Feature to Load Config
- Add Log Info
- Complete all the language files with keys
- Optimize code to reduce Flash and RAM
Modifications to Sonoff-Tasmota
- Adding the file /sonoff/xdrv_10_KNX.ino
- Add the entry
#define USE_KNX
on /sonoff/user_config.h - Add entries to the file /sonoff/webserver.ino
- Add entries to the file /sonoff/sonoff.ino
- Add entries to the file /sonoff/sonoff.h
- Add entries to the file /sonoff/settings.h
- Add entries to sensor files
- Add entries to language files
Up to now, enabling KNX uses +22k of code and +3k3 of memory.
There is NO CONFLICT with MQTT, Home Assistant, Web, etc. Tests show fast response of all features running at same time.
Contributors
- Adrian Scillato ascillato
- Sisamiwe sisamiwe - Thanks for the guide on using KNX.
- Nico Weichbrodt envy - Thanks for the patience and help with the modifications to ESP_KNX_IP.
Sonoff-Tasmota
Alternative firmware for ESP8266 based devices like iTead Sonoff, with web, timers, 'Over The Air' (OTA) firmware updates and sensors support, allowing control under serial, HTTP, KNX and MQTT, so as to be used on Smart Home Systems. Written for Arduino IDE and PlatformIO.
If you like Sonoff Tasmota, give it a star, or fork it and contribute!
Development:
Current version is 5.12.0j - See sonoff/_releasenotes.ino for change information.
Quick install
Download one of the released binaries from https://github.com/arendst/Sonoff-Tasmota/releases and flash it to your hardware as documented in the wiki.
Important User Compilation Information
If you want to compile Sonoff-Tasmota yourself keep in mind the following:
- Only Flash Mode DOUT is supported. Do not use Flash Mode DIO / QIO / QOUT as it might seem to brick your device. See Wiki for background information.
- Sonoff-Tasmota uses a 1M linker script WITHOUT spiffs for optimal code space. If you compile using ESP/Arduino library 2.3.0 then download the provided new linker script to your Arduino IDE or Platformio base folder. Later version of ESP/Arduino library already contain the correct linker script. See Wiki > Prerequisite.
- To make compile time changes to Sonoff-Tasmota it can use the
user_config_override.h
file. It assures keeping your settings when you download and compile a new version. To useuser_config.override.h
you will have to make a copy of the provideduser_config.override_sample.h
file and add your setting overrides. To enable the override file you will need to use a compile define as documented in theuser_config_override_sample.h
file.
Version Information
- Sonoff-Tasmota provides all (Sonoff) modules in one file and starts with module Sonoff Basic.
- Once uploaded select module using the configuration webpage or the commands
Modules
andModule
. - After reboot select config menu again or use commands
GPIOs
andGPIO
to change GPIO with desired sensor.
See Wiki for more information.
See Community for forum and more user experience.
The following devices are supported:
- iTead Sonoff Basic
- iTead Sonoff RF
- iTead Sonoff SV
- iTead Sonoff TH10/TH16 with temperature sensor
- iTead Sonoff Dual (R2)
- iTead Sonoff Pow
- iTead Sonoff 4CH
- iTead Sonoff 4CH Pro
- iTead S20 Smart Socket
- Sonoff S22 Smart Socket
- iTead Sonoff S31 Smart Socket with Energy Monitoring
- iTead Slampher
- iTead Sonoff Touch
- iTead Sonoff T1
- iTead Sonoff SC
- iTead Sonoff Led
- iTead Sonoff BN-SZ01 Ceiling Led
- iTead Sonoff B1
- iTead Sonoff RF Bridge 433
- iTead Sonoff Dev
- iTead 1 Channel Switch 5V / 12V
- iTead Motor Clockwise/Anticlockwise
- Electrodragon IoT Relay Board
- AI Light or any my9291 compatible RGBW LED bulb
- H801 PWM LED controller
- MagicHome PWM LED controller
- AriLux AL-LC01, AL-LC06 and AL-LC11 PWM LED controller
- Supla device - Espablo-inCan mod. for electrical Installation box
- Luani HVIO board
- Wemos D1 mini, NodeMcu and Ledunia
License
This program is licensed under GPL-3.0