Lachesis is a frontend for moirai. It is developed as part of my scientific initiation project, named Plataformas de baixo custo para controle de processos (low-cost platform for process control), developed at CEFET-MG (Brazil) under the supervision of Prof. Dr. Valter Leite. The project was developed through a FAPEMIG scholarship and an article about an application has been published at the Studies in Informatics and Control magazine..

This application allows you to configure the hardware, execute system response tests and run controllers with an easy to use interface. The used input and output signals, as well as variables, can be seen graphically, updating in real time.

The controllers for this platform must be written in Python 3, using libraries like NumPy and SciPy, if needed. Hardware interfacing, input/output management and execution flow are controlled by the platform, taking the burden from you and letting you focus on the design and test of your controllers/models.

It works only as a frontend, meaning that all data is stored and managed in/by the moirai server. The server is also responsible for executing the controller. That means that you can install moirai in a dedicated computer, like a Raspberry Pi, and Lachesis in another one, using Lachesis like a remote control for your control system. This allows various user to share plant configuration.

Manual (in Portuguese) available here.

Under releases, download the latest version for your system. The Windows installer works with both 32 and 64 bits systems. There is an AppImage available for Linux, which is distribution-agnostic, so you just have to download and execute it. There are still another two alternatives for Linux:

Using Flatpak:

flatpak install me.acristoffers.Lachesis

Using Snap:

snap install lachesis

On macOS, using Homebrew, you can install with:

brew tap acristoffers/repo
brew cask install lachesis

If you work with another system, like Linux ARM, BSD or Solaris, you can checkout this repository and build the project yourself. It should run anywhere electron and node runs. The best way to build this project is to install node execute npm run dist in the project root. This will install all dependencies and build the project into desktop/dist.

Copyright (c) 2016 Álan Crístoffer

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.