Yesterday I referred to using DELAY in Node-Red to slow down one of the Blynk controls. To backtrack a little… We’re talking here about controlling devices such as ESP8266 boards using MQTTT – which I maintain is the best way to have a boatload of devices around the place and…
Category: ESP8266
A Better Day
A better day today. After switching my WIFI to a separate access point, up to now the WIFI is holding – I’m not convinced but for now all seems well. That has allowed me to spend a little more time with Blynk – and after chatting to the Node-Red node…
The new ESP
In case you missed it – extracts from forum conversation with Swee Ann Teo, CEO of Espressif about the new chip – which I understand will have Bluetooth as well as WIFI and be a lot more powerful. Also in that discussion is a promise to support the existing chip…
ESP8266 Remote Access
Notice I titled that remote access as against remote programming – but that’s part of it. Years ago, having gotten sick and tired of dismantling my home control Arduinos just to upgrade the code, I purchased a couple of small units from China which I’ve just thrown in the bin. …
ESP-12F
The ESP-12F seems to have appeared out of no-where. It appears to be nothing more than the ESP-12E – perhaps someone can enlighten us. It is cheap, no doubt about it at $2 inc. shipping or around what, £1.32 UK money? This things are now so cheap that the support…
QD Tech Displays on the ESP8266
I’ve seen a number of projects using an Arduino and an ESP8266 to drive LCD displays. You may know that my home control has used a 1284-based board (MEGA type) to run a nice Thermostat display for some time now. The displays look very pretty in the right box. THIS…
ESP8266 RAM
I recently put out a question about the RAM in the ESP8266. In a typical compile, for me I might see… Sections:Idx Name Size VMA LMA File off Algn0 .data 00000894 3ffe8000 3ffe8000 000000e0 2**4CONTENTS, ALLOC, LOAD, DATA1 .rodata 0000275c 3ffe88a0 3ffe88a0 00000980 2**4CONTENTS, ALLOC, LOAD, READONLY, DATA3 .bss 00009a80…
BASIC for ESP8266
Don’t get me wrong, we don’t yet have a fully working interpreter, but a link appeared on my ESP8266WIFI Facebook page thanks to Michael Molinari this morning and I thought I’d give it a whirl. http://esp8266basic.com/ I grabbed the Windows loader (Windows 10 put up a SEVERE warning about this…
RGB versus HSV
In implementing my own home control solution which you’ll find in this blog “home control 2015” the software has been and remains a work in progress – mainly because I keep finding bugs and adding new features. I’m fairly confident that most of the bugs that have plagued me over…
Driving me NUTS
This has been driving me mad and I’ve only just found the answer – thanks to some clues people have given me – but as many of the responses were wrong – you might well find this interesting. I have a an array of 180 bytes – for 60 serial…
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…
Testing ESP8266 WIFI
Having had mixed results with both the ESP-Arduino environment and the normal SDK (1.3.0 with latest patch) and C, I decided this morning to up the game and do some focussed testing. So – I made a simple loop with ESP-Arduino, connecting to WIFI, connecting to MQTT and publishing a…
EasyTransfer for ESP8266
I’m going to describe here the transmitting side of the EasyTransfer system as used in Arduino – the reason I did this was because I wanted to ship a bunch of binary data from the ESP8266 to the Arduino where I have a nice little wall mounted LCD display –…
ESP8266 Mesh
Here it is – the ESP8266 Mesh English doc – who will be first to get this going? http://bbs.espressif.com/viewtopic.php?f=51&t=929 The Chinese docs have been out for some time as has the mesh SDK but the English docs just came out today – have fun.
The MIT Boston Trip with Espressif Systems
Some time ago, the CEO of Espressif, makers of the lowest cost WIFI-enabled processor on the planet (a chip I’ve blogged about frequently in here) invited me to come with them to MIT at Boston to the FAB11 conference. As it turns out this was a rather small affair featuring…
ESP8266 Arduino NetIO Server Demo
This week as regular readers know I was far away from our little home in Spain – in fact I was at MIT (Massachusetts Institute of Technology) in Boston, helping promote ESP8266 technology (why? because I could). Along the way I met up with Ivan Grokhotkov who as some of…
FAB11 – Boston
This coming Monday/Tuesday/Wednesday I’ll be working with Espressif CEO Swee-Ann Teo, Jeroen Domburg, Ivan Grokkhotkov and others at FAB11 in Boston – demonstrating how to use the ESP8266 chips in home control and other applications. Heading off from Alicante (Spain) first thing in the morning tomorrow (Sunday) and arriving late…
ESP LIFESPAN
Just a quick note – as a few of you have said you’ve had issues flashing ESP boards and some have worked then not worked etc… ensure you use the relevant pull ups and pull downs and the right voltages. As you know I do a LOT of work with…
ESP8266 Reliability and ID
Questions for you C programming ESP8266 guys re: the ESP SDK (1.2.0) and some possibly important info on WIFI and MQTT reliability. In the SDK: wifi_station_set_hostname wifi_station_get_hostname HOST ID…. If you do an IP scan on a windows network – ESP units will coming up as IP addresses – and…