Having gone from spending countless hours staring at HTML5 CANVAS, I’m now at the “meh” stage as it starts to dawn on my how it works. And so it was that I stumbled on RGraph – or put another way, Christmas for widget-lovers. If you’ve been following these blog entries…
Category: Node Red
A Thermostat Weekend
As I make changes and I don’t want to bore readers – I’m adding sections at the top of this article and moving earlier versions of the stat down the page. If you are new to this you might want to start at the bottom at the point in this blog…
New Day, New Dial
WHAT a day I’ve had – messing around with a supposed DIY Alexa that isn’t… and getting to grips with dials. I wasted a lot of time on this (sorry Dave) before finally grasping the solution. Here is the LATEST short video (Jan-10-2016) So – in the last blog entry…
A Little Dashboard Something
Something for the weekend sir? How about a simple means to get visual and tactile feedback from node-red-dashboard buttons? Or rather than large buttons – icons you may create or obtain yourself in a node-red-dashboard template. To backtrack: For my own home control endeavours, I’ve been using a number of…
Node-Red Objects to File and Back
This is a major re-write of a year-old blog. At the time, I simply wanted to store a global object in a file and retrieve it. Things have changed, I realise the way we did this was awful – hence the re-write. One way is to save the object as…
Variable Persistence in Node-Red
It is my understanding that Node-Red will eventually have persistent variables – but while we’re waiting – this is how I do it. Using the global.get and global.set mechanisms, I store a single object. So – when Node-Red pops up it looks to the SD for that object – if…
Node Red Sunday
It is Sunday, I’ve done my 4,000 steps down to the village for coffee and back and I’m having a play. I use Node-Red on a Raspberry Pi to control just about everything in two houses – as my confidence in the setup has grown, I’m currently keeping the Pi…
IOT Manager Revisited
This started off as a very short blog some time ago – you’ll see comments below but I’ve re-written it. I occasionally like to revisit stuff I have reviewed or played with ages ago because, well, things change. Had I not persevered with ImperiHome I would not now have a…
Node-Red on a Phone
I have to hand ALL the credit to Dave at the Node-Red Google Groups for this – and you might want to pop any questions in that direction because I know even less about running Android at the command prompt than I do Debian! Running Node-Red on your Android phone…
A Brighter Node Red
Just today – an upgrade notice for Node-Red appeared in my in-box. Upgrade details are here. What is Node-Red? Details here – if you’re not using it or at least investigating it – you may be missing out. Now, the support guys (Google groups here) are VERY clear about required…
Remote checking Home Control Units
Those of you who are aware of the Home Control project (Home Control 2019) will know that the software/hardware combination of a Raspberry Pi (running Jessie, Node-Red, SQLite and Mosquitto) and ESP12 (running the software described in the Home Control project) is proving very reliable – but there are occasions…
Track Broadband Outage in Node Red
Actually I could have given this a range of titles – as the following is useful in a range of situations. But first let me explain my problem: The problem: I’ve been having broadband issues. The broadband cuts out for a few minutes without warning and then reconnects. I just…
Visual Interfaces for IOT
So much happening right now – the new Raspberry Pi 3 once again sets the bar with improved performance, Bluetooth and WIFI as standard. With up to 10x the speed of the original Pi we can do even more serious work with these devices. Please note before proceeding – apparently…
Node Red Grandfather Clock
So I was thinking about all those wasted cycles on my Pi – which is speech and MP3 equipped, As I sat quietly coding (my wife Maureen is in the USA right now) listening to the hard disk on the Sky box chunking away (well, when they said you could…
Blynking Wonderful
As of yesterday, a new release of the Blynk App has been released which makes me want to look at this again. Regular readers know that I’m into the idea of using a central controller for home control – so that instead of trying to give every peripheral every feature…
UI Update
I’ve been busily beavering away at a commercial project for the last couple of weeks but that ends at the weekend and I hope to soon have some more reviews of new and interesting products for you including some surprisingly cheap SBCs. Meanwhile, close to the heart of many of…
BigTimer for Node-Red
This is an old article – For information and the latest on BigTimer – see this blog article. Having just fixed a bug in big-timer (npm install node-red-contrib-bigtimer) I thought it was time to do a short video. So this is for users of Node-Red – this demo on a simple…
Thermostat Progress
I’m quite chuffed. Having finally managed to make a new working Node-Red on a Pi2, with a copy of all my work, so that I’m no longer losing sleep over losing the lot, I can finally start to get more ambitious with my thermostat over at Hollyberry Cottage. I’ve had…
Instant Node-Red
Peter Oakes kindly made a video – you’ll see it in my last post – on installing Node-Red using my script. Well, I was in the process of watching THAT when (as you do) I got side-tracked and discovered a really wonderful online tool for testing out Node-Red instantly –…
Headless Pi Installation
This blog entry refers to installing Jessie, Node Red and other utilities on a Pi 2 (not Pi 1 – there is a minor startup issue with Node-Red with that right now) specifically from the November 2015 Jessie image on the Raspberry Pi site. Grab the November 2015 Jessie image…