Examples of using Node-red in English and their translations into Slovak
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Programming
Error debugging in Node-RED.
Node-RED can work with serial port.
Home automation with Pi 2 and IBM Node-RED.
Both ESP8266 and Node-RED are ready to do so.
I'm working on continuing the article on Node-RED.
Node-RED is a flow-based environment that lets you create data flows.
ESP8266 acts as an HTTP client and Node-RED as an HTTP server.
After installing Node-RED, you will only have a basic set of nodes available.
For example, you may not like the set measurement interval andthe HTTP server in Node-RED will certainly have a different IP address.
Running Node-RED a visual tool for wiring the Internet of Things on Raspberry Pi.
The number could be then translated via Node-RED to command for LampESP with RGB LED.
Node-RED is a flow-oriented environment in which you create data flows between nodes.
In the articles I described Node-RED, ESP8266 and temperature measurement using DS18B20 sensor.
Node-RED provides the ideal environment for this because you can easily determine where the data is coming from and where to send it.
Arduino will send the measurement results through the serial port, and Node-RED will parse them to make it easier to process.
Now you can connect Node-RED or other tools and communicate with the device.
In the article on ESP8266 we will deal with the treatmentof various errors, so I designed a Node-RED interface that will be fault-tolerant.
The Node-RED flow will be adapted to process data from multiple DS18B20 temperature sensors.
Subsequently, we can assign a name to this Node-RED identifier and transform the results into a more human-friendly form.
In Node-RED, we will use an HTTP server to which ESP8266 will send the measured temperature. Let's go.
In the case of Mosquitto you can easily build network of devices which can communicate together andmanagement logic could be injected by Node-RED.
In Node-RED, you can type debugging information on the console in Function nodes, but you must use the node.
It is an ideal node to try out Node-RED because it generates a message that travels across the flow when you press a button on a node.
Node-RED and its flows will serve as a server and ESP8266 will be used as an HTTP client to send the measured temperature to the server.
To use a serial port in Node-RED, you must have additional nodes installed from the node-red-node-serialport package.
On the Node-RED website you will find a detailed manual that also contains some basic examples of how flows are created.