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Category: Node Red

BigTimer

January 2, 2021January 2, 2021 Peter Scargillbigtimer, Node, Node Red, node-red, node.js1,145 Comments on BigTimer
BigTimer

Node–RED is a fantastic and powerful yet easy to use programming tool for wiring together hardware devices, APIs and online services in new and interesting ways. For more information on Node-Red go to the Node-Red site. BigTimer is my own creation and is (IMHO) the most powerful and best-ever, most…

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The Script

May 16, 2020June 10, 2020 Peter ScargillNode Red, The Script, virtualbox947 Comments on The Script
The Script

May 14 2020 Regular readers may be aware of The Script, created to simplify the often torturous job of putting together a bunch of utilities onto a Raspberry Pi including Node-Red, Mosquitto MQTT broker and graphing tools such as Grafana along with text editors, a basic web page, lots of…

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RFLink – 433Mhz Remote Control and Node-Red

April 14, 2020April 14, 2020 Peter ScargillESP12, ESP12E, Node Red, node-red, RF Link, RFLINK139 Comments on RFLink – 433Mhz Remote Control and Node-Red
RF LINK

In the comments below you’ll see reference to an ESP8266 to MQTT Gateway – at one time I thought that this would be ideal as it would be all in one little box – whereas I needed to stick something like a Pi on the end to generate a wireless…

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More Node-Red Dashboard Success

March 15, 2020March 16, 2020 Peter ScargillGeneral, Node Red, node red dashboard, node red ui, node-red33 Comments on More Node-Red Dashboard Success

This is a blog entry from 2016 that I’ve just updated.. In an even earlier entry the subject of Node-Red Dashboard, you’ll see I can hide that top menu if needed (the blue menu is great on a phone – not much use on a thermostat)… and then I discovered…

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Handy Node-Red Date

March 2, 2019March 2, 2019 Peter ScargillNode Red9 Comments on Handy Node-Red Date

While working on my thermostat I found myself repeating the same code all over the place – as I use function nodes for inline debugging and info – far more useful at times than the debug output. I’ve now attached this simple code here to a function in my init…

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The Wall Display

October 17, 2018October 18, 2018 Peter ScargillDark Sky, ESP12, ESP12E, ESP12F, ESP8266, Node Red130 Comments on The Wall Display

This blog has been updated as I’ve discovered that these displays are, after all, still freely available from AliExpress. I’ve recently spent time working on my hallway wall display, an amount of time which would be considered commercial suicide. Good job it isn’t commercial. Of course I’ve not just been…

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Waiting for Peter, closing out 2017

December 31, 2017May 17, 2018 Peter ScargillNode Red, node-red34 Comments on Waiting for Peter, closing out 2017

MrShark at the console, while we’re all waiting for Peter to come back, let’s try to add some new content to the blog 🙂 I’ve a couple of new boards to test, unfortunately they’ve to wait I receive their PSUs… material for an other time 🙂 So, I’ll add some…

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Node-Red and Alexa with Big Timer

November 14, 2017November 14, 2017 Peter Scargillalexa, bigtimer, Node Red29 Comments on Node-Red and Alexa with Big Timer

I’ve recently updated my setup at home, finally doing away with HA-Bridge and I thought you might like to see this simple setup. So for beginners, HA-Bridge is a piece of software (a very nice piece of software) that runs on for example a Raspberry Pi, who’s job (in my…

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Graphing System Info in Node Red and Grafana

November 11, 2017November 11, 2017 Peter ScargillNode Red, Python23 Comments on Graphing System Info in Node Red and Grafana

We were just talking about getting system info into graphs in the comments in a previous blog entry – and I realised I already had some code for getting that info in Python – and using a library that can provide a LOT more. So – as it was there…

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More Alexa Marvels

October 12, 2017October 13, 2017 Peter Scargillalexa, Amazon, Echo, Node Red32 Comments on More Alexa Marvels

Some of you may recall that in the dim and distant past, Aidan and I wrote a SKILL for Amazon’s Alexa – which let us do anything by simply passing the speech back to Node-Red… and we could sent text as speech to Alexa. Well, that relied on SSL port…

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Node-Red BigTimer Example

June 28, 2017June 28, 2017 Peter Scargillbigtimer, Node Red, node-red-contrib-bigtimer25 Comments on Node-Red BigTimer Example

I am constantly asked about using Bigtimer (node-red-contrib-bigtimer) and so here’s an example of how I am using it in conjunction with both Amazon’s Alexa (voice control) – and the Node-Red Dashboard.

Saturday Node-Red Sermon

June 24, 2017June 28, 2017 Peter ScargillNode Red18 Comments on Saturday Node-Red Sermon

I just learned something new! ONLY of interest if you are using Node-Red and will lead to a description of the new node-red-contrib-diode node. If you are into Node-Red – you really want to see this one…

Garden Data Collection

April 30, 2017October 29, 2020 Peter ScargillGrafana, InFluxDB, Node, Node Red, node-red-dashboard63 Comments on Garden Data Collection

This entry is all about InfluxDB, Grafana and a cute little Bluetooth garden sensor! Some time ago a pal of mine and I did some swaps of spare kit and I ended up with a Mi Flora sensor.  A rather pleasing looking device,  the MI Flora has a 3v lithium…

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Android Phone as Server

March 18, 2017March 19, 2017 Peter ScargillAndroid, Apache, Debian, MQTT, Node Red, SQL, SQL Lite, The Script74 Comments on Android Phone as Server

Why am I showing you a picture of a cracked-screen phone? Well because this particular phone is a bust Oukitel K10000, the phone with the world’s longest-lasting battery and an excellent workhorse. My friend Aidan gave me this (rather than chucking it away) some time ago and it has been…

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Node-RED Global Flow and Context

March 7, 2017March 20, 2017 Peter ScargillNode, Node Red, node red dashboard, node-red-dashboard45 Comments on Node-RED Global Flow and Context

There’s a mouthful. This short article is about the various kinds of variables used in Node-Red and more importantly how to initialise them and how to view them. So in Node-Red when you want to use variables – there are three basic types as well as local variables. So for…

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Node Red and HighCharts

February 24, 2017February 26, 2017 Peter ScargillHiCharts, Node Red, node-red-dashboard27 Comments on Node Red and HighCharts

First things first – HighCharts are not free for commercial use. However, for your own website, a school site or a non-profit organisation they are free to use. You are also OK to make modifications. So – that’s the “cover my back” bit out of the way – now, how…

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NR Templates and the Inject Node

February 14, 2017February 15, 2017 Peter ScargillNode Red, node-red-dashboard, node.js5 Comments on NR Templates and the Inject Node

When testing Node-Red, the common INJECT node is invaluable. Indeed it is just about the only way to instantly inject information into another node. Here is a typical example. It doesn’t get any simpler than this. Here I have merely dropped an “Inject” node onto the Node-Red working surface along…

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Thermometers

January 25, 2017January 25, 2017 Peter ScargillGauges, Node Red, node red dashboard, node-red, node-red-dashboard16 Comments on Thermometers

Three thermometers in a row for Node-Red (or as many or few as you like really) for Node-Red Dashboard. Another fine example of simple gauges and unlike some it is easy to make multiple gauges on one page – I will demonstrate three. Here is the library source, I grabbed…

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Another LCD

January 23, 2017May 31, 2020 Peter ScargillLCD, Node, Node Red, node red ui, node-red, node-red-dashboard4 Comments on Another LCD

When writing that last blog entry about an LCD with time and date display and programmable temperature for Node-Red Dashboard, it occurred to me that it would be worthwhile making a simple one-liner (6*1) LCD with a 20-character display. At the same time I wanted to simplify it right down…

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LCD Display for Node-Red

January 22, 2017January 23, 2017 Peter ScargillLCD, Node, Node Red, node red dashboard, node-red-dashboard, node.js66 Comments on LCD Display for Node-Red

As must be obvious by now, I’m on a roll here. Having decided that Node-Red Dashboard is the way forward ( would in the past have used BLYNK or Imperihome) I’ve been getting to grips with the dashboard and as you’ll see if you check recent blogs I’ve had a…

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As I have no idea of your level of technical skill or the requirements of your country laws in terms of electricity supply etc, I accept no responsibility for any damage attributed to following advice in these pages.

When dealing with wall outlet (high) voltages you should satisfy yourself that whatever you are doing is safe and if unsure, seek advice from someone who is sure.
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