I want to send asynchronous data to the node on configuration. I want to  perform a SQL request to list some data in a .   On node creation, a server side function is performed When it's done, a callback send data to the node configuration On nod...
I am working on node red (SNMP).  When I deploy, I have the output below:     [ { "oid": "1.3.6.1.2.1.10.21.1.2.1.1.2.1.26", "type": 2, "value":   104, "tstr": "Integer" }, { "oid": "1.3.6.1...
I'm trying to understand existing code of the Switch node in node-red to deal with and make my own node correctly.  I'm stuck with these lines :  var operators = [                 {v:"eq",t:"=="},                 {v:"neq&#...
experienced programmer, inexperienced javascript programmer.  I am working with Node-RED and in one of my nodes, I am calling an external program with 'child_process' which sends data back to my node via stdout.  I am using console.info(stdou...
The situation: My sensor measures data, that I process in a NodeRED-function and afterwards parse into a JSON-object. The NodeRED-function allows me to write JavaScript-Code. The JSON-object gets send to a receiving module, written in C++, that works...
I am trying to start my node-red on a raspberry pi 2 using pm2. I am using the startup command:  pm2 start /usr/bin/node-red-pi --node-args="--max-old-space-size=128" -- -v   At first it seems to work:    But unfortunatly then it errors:    T...
I've been hacking round for about a week trying to work this out, so finally cracked and asked a question:  My setup is Raspberry Pi 2 running Apache and IBM's Node-Red. I'm using Apache to serve up a simple web page which calls Node-Red...
I started using Node-Red to develop an MQTT dashboard, I just starting with a simple example to subscribe to a topic and debug the message. However, I couldn't get the json value of my message and convert it from base64 to a string.  my message l...
I can't find the console for Node-RED.  Do I have to use Node-RED Runtime API's RED.log()? Some Node-RED frontends, like FRED, seem to have a console. Also here a console is mentioned.  Is there a console accessible on the shell, or do I have...
I am using node-red to get the signal of my load cell. I receive the value of the load cell using MQTT (from my python script), then I would like to save the first 5 value coming from MQTT to compute the offset of my load cell. Then when I will have...

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