Monthly Archives: January 2019

Espressif ESP-EYE Board

I remember reading, less than a month ago, a blog entry called “The Mysterious ESP-ESP-EYEEYE" in which it is stated that there is no information on the Espressif site on this interesting little camera module. Well, I’ll correct that – there most certainly is now and here’s the link. https://www.espressif.com/en/products/hardware/esp-eye/overview

The ESP-EYE module is a little PCB with a camera and an ESP-32. Rather than print potentially out-of-date info here, I’ll just point you in the right direction for those interested. Here is a link for ordering info, the ESP-EYE Getting Started Guide and the ESP-EYE Reference Design notes all in one place. The ordering info is dated TODAY (Jan31, 2019) and the others are a few days old.

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Phone Charging Epiphany 2

Some time ago after using USB chargers (and USB battery units) since late last century and having been constantly disappointed by their performance when charging phones, I started to get very selective. At the risk of boring experts in here, a short history…

Quick ChargeThe first change I started to make was to look for short, thick USB cables…. this is always a good thing. But the real breakthrough for me was noticing that the charger that came with my phone, even though small, performed considerably better than larger generic USB supplies. Why is that you might ask? Well, you’re probably aware of “QuickCharge 2.0 and 3.0” – essentially protocols for charging those phones suitably equipped, more rapidly than normal. Though charge leads that minimise voltage drops are essential, that’s not the end of the story and there are more protocols out there than QuickCharge, not all of which are documented. See further down for QuickCharge 4.0 and car Quick Charge chargers. This is getting exciting.

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K88H Smart Watch Heart Rate Monitor

Back in October 2018, I received this lovely, black K88H smart-watch from GearBest. Immediately it looked like one of the better choices for a low-cost smart-watch and here we are, months later – I’ve not changed my view.

First of all, it looks lovely.  Unlike many smart watches and bands, the battery lasts for days. Not only that but the touch-charging connection is magnetic, won’t easily dislodge and looks solid.

Follow-up 3 months + later - still not scratched, still working a treat - nice strap - here’s the GearBest link -

https://goo.gl/V3Ke95

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Adjustable Display Soldering Iron

As a DIY type you can never have too many soldering irons and this latest one has some virtues, it is CHEAP at under £18 and it has a nice display and simple temperature controls. It also uses pretty widely available bits.

Soldering Iron

Not excited about the stand but it works – and I have others. The iron however seems ok up to now and has temperature control from 180c to 480c. The cable seems substantial but of course only time will tell. Mine came with an EU plug which works well for me as I tend to lug stuff back and forth to Spain in the summer.

Adjustable Digital Display Electric Soldering Iron: https://goo.gl/188RG9

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The A5X MAX Android 8.1 TV Box

Regular viewers may recall I reviewed a rather nice TV Android box some time ago – the H96 Max Plus. I’m particularly choosy about these units, again regular readers will know that I’ve used and tested a number of mini-board level products such as various NanoPC boards and others for use as TV boxes and right now back in Spain I’ve left one such unit in place.

Here in the UK, rather than a board level product,  I’ve been using the H96 Max Plus for months now without issue on my 4K 55” TV, producing quality output from Netflix, Amazon TV, iPlayer and much more. UK viewers note that few if any of these units can handle NowTV due to rather childish restrictions from Sky. I use a separate Sky-vendored box for NowTV (produced of course by Roku and crippled for Sky purposes) .

A5X Max

Of course there is much more to quality TV than simply resolution (just as well as very little of the video material out there is 4K or anything like it) and one TINY gripe I’ve been harbouring without knowing exactly where to pin the blame, is black level control. I got very annoyed over Christmas when I went to see a pal of mine as his TV seemed to have more consistent blacks than mine. Which brings us to the A5X Max box.

Continue reading The A5X MAX Android 8.1 TV Box

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My New Kinetic Light Switches

Here’s something new (for some of us at least). I’ve been struggling with faulty hall wiring for some time since another room rewire – well, not faulty, more disconnected. The problem is while I can easily seal up the original wiring with just one hole in the (flat roof) ceiling and acquire new power from elsewhere, the two interlocking wall switches are another matter – they go up inside stone walls and into the ceiling space at each end of the hall … not a problem but for the flat roof and the fact that I have no idea where the two of them meet up.

I’d really rather not dismantle the entire hall ceiling to find out where the switch wiring meets the power and there is no way to get to the switches or the wiring from above. My choices were boiling down to one – some kind of battery powered remote switches – and how would I do changeover? two circuits?

Battery free remote switching

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Vodafone Gripes and a Glimmer

To any readers considering Vodafone broadband – here’s the story of my first 3 months with Vodafone UK.

It begins with the promise of a free gift to join Vodafone but read on, there is more and some good news…

When we moved home last year, I was very excited to find that the village of Wark on Tyne was finally moving into the 21st century with high speed fibre broadband (no thanks to BT who get endless funding for this kind of thing), so excited that I put to one side my long-held gut feeling that Vodafone are nothing but a bunch of cowboys. After all, things change, don’t they?

GoPro Hero

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Sonoff, Tasmota and Alexa

Sonoff mains switchI always think it is worth periodically re-visiting things you’ve tried before, even when the first attempt led to tears. Things change. And so it was that I pulled out and old (original 4-pin connector) Sonoff Basic recently and gave Tasmota a go. It is some time since I looked at this. Off I went to the Tasmota site looking for a binary file for the Sonoff BASIC. Voila. Binary files for lots of boards including Sonoff Basic.

https://github.com/arendst/Sonoff-Tasmota/releases

Next I had to remember how to flash this on my Windows PC. I tried esptool.py and quickly realised this was not going to work on my PC without figuring out where Python is hiding. It just so happens I have esptool.exe on there, in my c:\espressif\utils folder.

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The life of a solar panel

Here’s something you don’t see in the garden solar light adverts.. what you’re seeing here is not untypical weather for the Northeast of England at this time of year. I’m optimistic that my NEW (not cheap) panels may last longer than the usual cheap rubbish. We’ve had several nights like this recently (rock solid ice in the morning) and the new solar lights I blogged about at Christmas are working a treat (more than can be said for the PoundLand specials) and lighting up the garden only when movement is detected, running at a dim level at other times (and of course only when it is dark).

solar panels

If they keep this up I’m buying more. Time will tell.

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Tips for T12 Soldering Station

tmpF411Remember my blog entry about the T12 soldering station?  I had a slight concern about tip availability.. solved..

Can’t say fairer than that… £26 inc. post for a complete set.

And these look far more substantial than those in my other soldering station so hopefully they’ll last a while. I just got them in the post. £2.60 each and that includes (I assume) the heater element as they occupy all the available space in the handle.

T12 Series Solder Iron Tips -- https://goo.gl/sMfGoH 
More Soldering Tips -- https://goo.gl/KH5Kj7

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Geekcreit Large Rainbow Clock Kit

If you know me, you know I’m a sucker for pretty colours, which is why I had to have this Geekcreit Large Size Rainbow Colour Clock DIY kit. I kind of glossed over the kit bit when looking at it, but never mind, I’m up for a challenge (and if you think that a couple of SMT chips and a shedload of SMT LEDs is no challenge, I invite you to try it in your mid-60s after a couple of serious operations).

Enough blether… I need to build this.

Clock kit

That’s a stock photo – I’m about 20% through putting the LEDs in and I’m still baulking at the thought of putting the larger IC on the board. Now waiting for Banggood to come back with which resistor is which. My good pal Aidan is popping over this week to give me a hand with the big chip.

partial build

partial build

More later….

Geekcreit® Large Size Rainbow Color Clock DIY Kit -- https://goo.gl/vEn8Mc 
More Geekcreit Tech -- https://goo.gl/6QzQDy

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