NOTE I'm no longer using these devices so this is not actively maintained.

A Domoticz plugin to manage Tuya Smart Plug (single and multi socket device)

With Python version 3.5 & Domoticz version 4.9700 (stable)

This plugin is based on the pytuya Python library. For the installation of this library, follow the Installation guide below. See https://github.com/clach04/python-tuya/ for more information.

For the pytuya Python library, you need pycrypto. pycrypto can be installed with pip:

pip3 install pycrypto

See https://pypi.org/project/pycrypto/ for more information.

Assuming that domoticz directory is installed in your home directory.

cd ~/domoticz/plugins
git clone https://github.com/tixi/Domoticz-Tuya-SmartPlug-Plugin
cd Domoticz-Tuya-SmartPlug-Plugin
git clone https://github.com/clach04/python-tuya.git
ln -s ~/domoticz/plugins/Domoticz-Tuya-SmartPlug-Plugin/python-tuya/pytuya pytuya
# restart domoticz:
sudo /etc/init.d/domoticz.sh restart

In the web UI, navigate to the Hardware page. In the hardware dropdown there will be an entry called "Tuya SmartPlug".

1/ python environment

Domoticz may not have the path to the pycrypto library in its python environment. In this case you will observe something starting like that in the log:

• failed to load 'plugin.py', Python Path used was
• Module Import failed, exception: 'ImportError'

To find where pycrypto is installed, in a shell:

pip3 show pycrypto

The Crypto directory should be present in the directory indicated with Location.

when you have it, just add a symbolic link to it in Domoticz-Tuya-SmartPlug-Plugin directory with ln -s. Example:

cd ~/domoticz/plugins/Domoticz-Tuya-SmartPlug-Plugin
ln -s /home/pi/.local/lib/python3.5/site-packages/Crypto Crypto

2/ Tuya app

The tuya app must be close. This limitation is due to the tuya device itself that support only one connection.

3/ Alternative crypto libraries

PyCryptodome or pyaes can be used instead of pycrypto.

Like other plugins, in the Domoticz-Tuya-SmartPlug-Plugin directory:

git pull
sudo /etc/init.d/domoticz.sh restart

DPS should only includes values that correspond to plug's dps id. Be careful some devices also have timers in the dps state.

DPS group can be used to group multiple sockets in one Domoticz switch.

DPS always ON can be used to force some sockets to be always on (usb for instance).

Helper scripts get_dps.py turnON.py and turnOFF.py can help:

• to determine the dps list
• to check that the needed information are valid (i.e. devID and Local Key) before using the plugin.

Recommanded method: https://github.com/codetheweb/tuyapi/blob/master/docs/SETUP.md

All the information can be found here: https://github.com/clach04/python-tuya/

• Special thanks for all the hard work of clach04, codetheweb and all the other contributers on python-tuya and tuyapi who have made communicating to Tuya devices possible with open source code.
• Domoticz team