And here it is – the ESP32 – or rather the ESP-32 development kit. Mine is in a batch that is running late so my pal has given me his to play with. I figured I’d take a pic in my hand so you can gauge size. This tiny box…
Node Red UI Miracles
I’m writing this at 5am in the hope that some of our American friends are up and about to save me going mad. You recall I wrote recently about Node-Red-Contrib-UI which allows you to make a UI for Node-Red for your mobile phone etc. Don’t get me wrong, there are…
New ESP Boards
Are these new? Reader Christian brought these to my attention this evening – price is ok – and if size is at a premium…. Small footprint, USB-to-TTL is on the underside. This is quite interesting when space is an issue. Supplier also has a DHT11 shield: http://www.aliexpress.com/item/D1-mini-Mini-NodeMcu-4M-bytes-Lua-WIFI-Internet-of-Things-development-board-based-ESP8266/32529101036.html Next is a…
DietPi
Those of you who have been here for a while will recall my rants about the Orange Pi PC, a Rasperry Pi lookalike that costs around £12 if you get it from China (Aliexpress etc). Indeed some of you have one of these and will no doubt have shared my…
CodeLobster
The more I dig into Node-Red the more I end up coding my own routines – and the internal function has nice colour coding etc but eventually you start to get a little frustrated with the internal editor especially if you are used to using an IDE. It just so…
Even More Node Red Contrib UI
As I write this – several conversations are going on around node-red-contrib-ui – and in the process I’ve found issues with the security setup in Node-Red itself – which have been fixed. Since I started this – the designed of the UI has responded to requests for gauges and a…
More Node Red UI
Updated 01/11/2016: Node-Red-UI is of course now Node Red Dashboard – you might want to check out the updates Andrei has now added the gauges below natively to node-red-contrib-ui so my code below is of use only if you want to add something different – though the LEDs are still…
Node Red UI
In my last blog item, I wrote about the IOT-Manager App for Android – much to the annoyance of a pal of mine who uses Apple (snigger). Among the replies was the questions “have use you used “node-red-contrib-ui”? This was something I looked at when it first came out and…
Smoke Alarm by Email
Reader Christian brought this to my attention.. (http://www.simpleiothings.com/10-diy-wifi-smoke-alarm-notifier-roost-nest-alternative-full-tutorial/) The guy uses a NodeMCU, a USB wall power supply and audio sensor (microphone) to catch the audible alarm and start a WiFi alert via IFTTT. The smoke alarm unit stays unaltered and you never have to think about running out of…
Enter the Photon
The details Particle.IO have been trying to send me a Photon for as long as I can remember. This all started in the summer when I was in Spain. I was expecting the device to arrive and the Spanish postal authorities got hold of it. I don’t know if they…
EMONCMS
Just a little sidetrack while I wait for some stuff to arrive in the post to test my Pi Zero…. I’m using BLYNK (with issues) for controlling my heating – but as you may know, switching between 2 installations of Blynk is a pain involving logging out and back in.…
Wio Link
You may recall I did a write-up on some neat little easy to use ESP8266 modules a while ago: Visual Configuration OTA (Over-The-Air) Firmware Updates Plug and Play Groves IFTTT Application Android & iOS APPs RESTful APIs Lots of units that simply plug together. Well they’ve just been in touch…
Pi Zero Suicide
Ok, maybe it’s not THAT bad. I hooked up my Pi Zero to a Wi-Pi controller by taking the WIPI out of it’s shell and hardwiring power to the end power connector – and signals to the second usb connector as here. http://hackaday.com/2015/11/28/first-raspberry-pi-zero-hack-piggy-back-wifi/ I then grabbed Berryboot (original, not the…
Espressif ESP8266 New SDK Update
You may be aware that ESPRESSIF have released a new update to their SDK which now stands at version 1.5 I’ll be interested to hear what experience other folks have of this.. On compiling my normal home control code which has worked without modification since version 1.0 I got this..…
Raspberry Pi Zero
If you have been hiding recently you may not be aware of the new Raspberry Pi Zero. Hot on the heels of the CHIP and other low cost micros and by the look of it a zillion miles ahead of that daft BBC “Micro Bit” (there’s a shocker) the Raspberry…
A better Terminal? MobaXterm
New reader Lorcan sent a note this morning to point me to this terminal for Windows.. http://mobaxterm.mobatek.net/ i have to tell you – at least at first glance this appears to blow the pants off WinSCP, TighVNC viewer and others – as it does the LOT! So the above are…
Blynk Update
Updated 22/OCT/2015 : Rather than write another blog I’m updating this one in the light of new info. New features added to the Bynk App (which allows you to control various IOT gadgets from your phone – OR talk to Node-Red and hence to anything that Node-Red can talk to…
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…
APDS9960 Gesture Sensing with ESP8266
A thought for a little display project. I recently came across some code for an LCD display (160*240 – detailed in a previous blog) using the ESP12 and an LCD display. But I’m inclined to use the Nextion display (also detailed in a previous blog) because it is touch sensitive.…
Node Red Script
Now that I’m back in the UK, I’ve left a Raspberry Pi2 in Spain monitoring my solar pergola lighting installation as an ESP8266 measures the state of a solar-charged car battery every 15 minutes and reports minimum and maximum voltages daily by email. The unit also controls lighting and while…