I currently have The Eclipse Mosquitto MQTT broker running on the Raspberry Pi 2, 3 and 4, Buster Raspbian, not to mention countless other variations of Debian and Ubuntu on various boards used at one time or another in the past (Orange Pi, various FriendlyArm boards and many others). Below…
Category: MQTT
November Quickie – Stress – TDM and ESP-GO
A few simples notes on probably my pet project and also some work that Antonio and I have been doing recently including a quick stress test for the Pi4, for those concerned about heat… remember I wrote about a combined heatsink/case? With this: sudo apt-get install stresswhile true; do vcgencmd…
HC 2020 and ESP-GO
Introduction (Latest update February 01, 2020) Minor update here – I’ve gone back to SDK 2.1 for now as RBOOT will just not reliably OTA on SDK 3.1 – and there is nothing wrong with SDK 2.1 Sick of reading about other people’s home control? Want to make your own?…
MQTT Broker on an ESP8266
This is kind of interesting – the promise of an ESP8266 MQTT broker (not client – BROKER) able to talk to up to 25 connections. Really? Let’s find out. Go here to get an account (free) and download the .BIN file for your ESP8266. Use something like the NODEMCU flasher…
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…
Fauxmo Alexa Delights
I’m going to cut a very long story short here. I’ve been looking at ESP8266 emulations of WEMOs because up to now this seems to be a popular device to emulate when using with your talking Amazon Echo. If anyone wants to come up with something that will take ANY…
A5 V11 Router
Or – the cheapest router on the planet – probably. I should say at the outset this experiment did not end too well – currently waiting for another unit to arrive – but worth a read in case you’re about to embark on using this unit. I had to pick…
Gear S2 Classic and Home Control
For a change from processor boards, let me tell you about my new WATCH. For a long time I’ve been a faithful Pebble user, the watch has a week’s battery life, a display you can read in sunlight and a host of applications. I had one of the very originals…
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…
Itead Slampher and Sonoff
Remind you of IKEA? No? Heard of ESP8266? Yes? Well, Slampher and Sonoff are two products from Itead and I think you’ll like at least one of them. They arrived at my desk today. Slampher is a screwfit lamp fitting – take the E27 lamp out – put Slampher in…
More Websockets
In a previous blog item here I covered the use of MQTT, jQuery Mobile and Websockets to make a controller web page for mobile phones/tablets etc. here https://tech.scargill.net/mqttjquerywebsockets-controller/ I showed just a basic and not too pretty page with buttons that would control real items, in my case via Websockets…
MQTT/JQUERY/WEBSOCKETS Controller
I wrote a while ago about using web sockets as against something like NETIO for controlling the home – most folk liked the article but I think part of it was a little complicated – and at the time I’d not really thought it out to make it as simple…
Lua Revisited
Back in the dark ages when the ESP8266 was something new, I had a go at the nodeMCU software, essentially implementing the Lua language (or a subset of it) on the ESP8266. At the time I was not familiar with Lua but thanks to some of the excellent resources out…
Web Sockets Web Page Part 3
For this to make sense you should look at Websockets Web Page Part 1 and Websockets Web Page Part 2 first. In this final section I add styling to the page and also change the code so that you can send a partial message i.e. {“my_input”:”Hello”} without affecting other parts…
A Fresh Pi2 Start
The thing about rushing in with something new is that you tend to bring your learning mistakes with you. Firstly for new readers, why am I fascinated with the Raspberry Pi? Well I’ve been working on IOT for some time now and I’ve tried out many ideas most of which…
Mosquitto and Web Sockets
This entry is about ThinkStudio (thingstud.io), Web Sockets and Mosquitto in my quest for ESP nirvana. So TODAY I was alerted to an early version of a new service which I think you might like… so check out http://www.thingstud.io/ Clarification: This is ALPHA software but already, provided they keep at…
Home Control The Next Step
As regular readers will know I’ve pretty much gotten to grips with the whole home control thing having after much research settled on a largely MQTT-based setup using the excellent new Raspberry Pi2 as a hub with Node-Red. Though it could just as easily have been any proper Linux or…
MongoDB on the Pi
I’m busy compiling MongoDB for the Pi and it’s going to take hours apparently – so I figured I’d give you some updates while I’m waiting. I’ve made some progress with my little ESP8266 board (ESP-12) in terms of deciding how to handle MQTT. Initially I had a bunch of…
ESP8266 MQTT and the UART
I wonder… those of you who have used the excellent MQTT software (stand-alone – not the LUA version)… I need to do two things – one of them is giving me problems but is no doubt trivial – the other I’m hoping someone has already solved. Ok, so I’m using…
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