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…
Category: node-red
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…
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…
Nextion Update
As you may know the home control software can work with Nextion displays and there is a project on the blog on that subject – I note that one or two people are having issues here so rather than reply without pictures – here’s a general update. Currently with the…
Node Red Dashboard
As regular readers and fans of node-red will know, I’ve been a fan of node-red-contrib-ui for some time – I wrote about adding security to it some time ago and until Imperihome came to my attention I was developing pages based on this. But, sadly the fellow developing it ran…
Speech … the Final Frontier
Updated 02/01/2017 Buffered, SD-cached high-quality human-like speech working alongside sound effects for your IOT project. Requirements: Raspberry Pi or similar with audio out, Node-Red and a little of your time. But you don’t need this blog – there’s a WAY better way to do this – in my latest entry…
To Weather or not to Weather
That’s it – I’m giving up with OpenWeatherMap. I’ve been having trouble recently with it accepting Hexham,UK some days and not others and it is getting worse – when you look at it’s search list it says Hexham,GB (despite the fact that I have to put in UK and not…
The Weather
I had a chat with my pal Jonathan today about the weather – and more specifically getting it into Node-Red. If you are building your home control with Node-Red at the centre then it is always nice to have information about the local weather to send off to your various…
IOT Speech recognition
Here’s a thought – now this might be available – but I can’t find it.. Most of us have phones – some Android, some Apple, few Microsoft. So sticking with Android for now – the latest Android phones (I have the HTC One M8 with Android 6.0 which is marvellous)…
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 –…
A successful Techy Day
So much going on today I thought I’d put the lot into one blog entry. So, I’ve spent the day with my pal playing with one of several IOT solutions – familiar to regular readers – node-red-contrib-ui. This just keeps getting better. So we spent our afternoon getting to grips…
Some thoughts on Node Red variables
In learning how to use Node-Red I’ve changed my coding countless times as I’ve found better ways to do things. Please note that in 2017, the way I use global variables here is out of date. It still works but for example context.global.fred=1 is now written as global.set(“fred”,1). Read this…
Raspberry Pi Serial and Node-Red issues
SOLVED: Node-Red serial I/O Looks simple doesn’t it – tie RX and TX together on your Raspberry Pi and press the button – text comes out of the other end – except that it doesn’t. More likely the Pi will CRASH (not something you see every day). Serial out seems…
NODE-RED Development
While I’m sitting in a hotel in Birmingham waiting to do my bit in this month’s #FSBCONF I thought I’d drop down a few notes about Node-Red which is definitely my new toy of choice when it comes to a central hub for home control. I say toy, sitting on…
So Many Things to Do Video
I’ve been meaning to update the blog – and I just keep getting sidetracked with the many interesting possibilities of Node-Red…. so – I put a short video together here. Should be something of interest in it. https://www.youtube.com/watch?v=xoQ_Fs31xtM Pete Node-Red on The Raspberry Pi
Node-Red Strangeness
THIS ONE HAS BEEN SOLVED – SEE “SOLUTION”. I freely admit to being utterly stumped. Having spent the day getting node-red on the Blackberry Pi2 I’ve made this simple page… an MQTT message coming in is passed out… and also goes to GPIO 0. This works – send a 1…