Having discovered some less than ideal historical settings in ESP-GO, today I’ve removed all commands which could OUTPUT to GPIO0. a throwback to the old ESP-01 days. I’ve also updated some default input bounce settings and improved the little-documented DEBUG2 command which lets you see the state of inputs on the serial terminal (I abandoned my own serial terminal some time ago in favour of the excellent and free YAT). The current software will be parked and esp-go-3 will appear, with GPIO 4 and 5 correctly used as boards with incorrect markings are by now likely out of circulation. While working on using SDK 3.1 (without success as the SDK appears to use more space than before) I’ve actually GAINED plenty of RAM to continue to expand with SDK 2.1 (which works a treat).
Coincidentally, Aidan’s new boards are already into revision 2 to cater for the changes and to make some clearance improvements. Here are some pics. The board will be "revision 2" but this one will serve the purpose of demo.
We had these 2-sided boards made from Aidan’s design and Gerbers at JLCPCB and I must say the price and quality were just right.
Continue reading A very busy week for Home Control
I’ve wanted one of these hand held imagers since I heard of the FLIR – but could never justify the cost – NOW I have one of my very own. I’m quite excited.
Here’s the link – be aware, I think the current sale offer dries up tomorrow??:
Even then the price - indeed it is Banggood (I'm sure they won't appreciate that). Likely there are a billion uses for these hand-help gadgets (this one comes with a spare battery pack) but my first priority as we are refurbishing the house, is to check where the highest heat losses are.
First of all, then, the box photo:
Continue reading HT-175 Infrared Thermal Imager
Why am I using a stock photo here? Because the weather in our garden right now is pretty naff, that’s why. This is the latest sensor light I’ve picked up from Banggood as we settle back down into Willow Cottage after gutting the place (if you saw the state the long-term tenants left it in you’d know why I say gutting). But I digress – not only is this sensor light solid looking but right now (Early November 2018) Banggood are having yet another sale and this is CHEAP.
And here is the link - Solar Motion Light https://tech.scargill.net/yourls/solarmotion
Continue reading Solar Motion Sensor Light
Update November 10 2018
After much delay and I have to say patience from Banggood, I have now put together this excellent A3 laser engraving machine. Originally, a 500mW module arrived complete with its own power supply (the laser which was not included in the basic kit). It turns out that was the wrong laser and now I have the 2300mW violet laser complete with upgraded 2.5A power supply. In the photo you also see the (important) green protective glasses that came with the kit.
With help from my friend Aidan who has extensive experience with 3D printers and similar, we’re now putting together some Perspex door signs for bedrooms at Willow Cottage using the Eleksmaker (more pics soon, Sylvan Azure and Occitane are the bedroom names for the dooe signs).
Continue reading EleksMaker Pro Laser Engraver
A little while ago I went to stay with my pal Jonathan and he had some Byron doorbell pushes to play with.
This article updated 09/11/2018 to fix negative temperatures
He showed me a universal RF 433Mhz receiver board he purchased which could look at the signals from the various kids of 433Mhz standard transmitting units.
Continue reading RFLink and Node-Red
We recently started on a new project for ESP-GO and this time made the board to fit the box – always sensible if you have the freedom to do this.
Well, here’s the box we used – from our friends at Banggood. As Thompsons travel used to say: Much cheapness. 10 off £5.08 the lot or under £17 for 60 of them.
More's the point they are good looking and vented.
Smaller boxes https://tech.scargill.net/yourls/9
and here’s a VERY similar but larger 80x100mm version – again – CHEAP. 1-off £1.38
Larger boxes https://tech.scargill.net/yourls/8
You might just like this – I do!
Standard problem number one: finding a none-home-made-looking box for the new project. Standard problem number 2: NOT taking a simple on-off light or heater design and turning it into a wife/husband-provoking nightmare with low-voltage boards needing separate mains power supplies. Collectively these have ben plaguing me for years.
Well, this time we make have it cracked.. first – the box – this is CHEAP from Banggood, LOVELY and useful if you can find boards that will fit inside. Next – yes it has vents top and bottom – handy for thermostats etc. https://tech.scargill.net/yourls/9
Continue reading NEW PCB for ESP-GO