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Node-RED pro Unipi Neuron

Tento manuál Vás provede celým procesem instalace Node-RED na Vaši jednotku Neuron. Před začátkem instalace se prosím přesvědčte, že kontrolér během přepravy neutrpěl žádné poškození či jiné viditelné defekty.

This page has been moved, the new location is Mervis on Unipi Neuron.

To detect the unit's IP address you can use any of the available LAN network scanning tools. You can also gain the IP address from the DHCP server (if you have access to it). For this tutorial, we selected the Advanced IP Scanner program.

Download and install it, or just launch it. The Advanced IP Scanner interface looks like the following:

For automatic network selection, click on the icon to start detection of all available networks on all available adapters of the PC. The specific range can be adjusted manually.

For network scan click on the button.

Scanning local networks will take a couple of minutes. Please wait until your device is displayed.

Remember the IP address - you will need it later when working with the unit.

The OS image you just uploaded into your unit also contains the preinstalled EVOK open-source software - an Unipi-developed application programming interface (API) for direct communication with Unipi hardware.

Also available is a practical demonstration of using the API in the form of a simple web application (Unipi Control Panel) serving as a user interface for all inputs and outputs on the unit. To access this interface, open your web browser and enter the IP address of your unit with the port number :80. Port number is optional, as it is the default webserver port.

For example:

192.168.1.10

or

192.168.1.10:80

The application's interface looks like this:

Another software included in the disk image, which is now also uploaded in your unit, is Node-RED. It is an open-source programming tool for connecting hardware devices, various APIs or online services. In this case, the Node-RED software already contains the EVOK API. This API is represented by a pair of nodes in the left panel, section Unipi - unipi input and unipi output made to control both analog and digital inputs and outputs.

To access the Node-RED programming interface, open a web browser and enter the unit's IP address into the address tab. Don't forget to add the :1880 port number.

For example:

192.168.1.10:1880

The following interface will appear:

You have probably noticed the interface already contains a project. It is a demonstration project for reading inputs and writing to outputs, which is connected with a web user interface → so-called Dashboard. This project (flow) is available for download at the end of the article.

To access the interface, add /ui suffix behind the address with the port number.

For example:

192.168.1.10:1880/ui

The following interface will appear:

You now have everything you need to create your projects.

Node-RED projects are called flows. On the link below you can download a file with a flow for Unipi Patron / Neuron / Axon units.

default-flow_axon-neuron.zip