Gadget Review: SMT1500i UPS + Linux Instructions

by @edent | , , , | 5 comments | Read ~152 times.

Back of UPS with lots of ports.

I never get power cuts. But, we've had two in the last week. They've both been fixed quickly, but it takes an age for my cable modem to reboot - and then an age for my smarthome to reconnect to the WiFi. So it was time to invest in an Uninterruptible Power Supply (UPS). My…

1 year of @edent_solar. We are 100% offset!

by @edent | , , , | 2 comments | Read ~339 times.

A generation meter.

Our domestic solar panels have generated more electricity in a year than we have consumed. We installed 5kW of solar panels on our roof in 2020. Half are East-facing, half West-facing. Over a full year, they've generated 4,165kWh. By comparison, the average UK household uses about 3,800kWh of electricity per year. But working out exactly…

Review: Moixa Solar Battery

by @edent | , , , , , | 4 comments | Read ~833 times.

A big white battery on a wall.

A few years ago, I took part in a local trial to install a solar battery in our home. The battery was excellent - and made a reasonable difference for our energy use. Sadly, last year, it died. It was prototype hardware, and these things happen. Moixa offered to replace it with an updated model…

iOS 14 gets support for the Unicode Power Symbol!

by @edent | , , , | 1 comment | Read ~199 times.

Power symbols displayed on the screen.

It has been four years since Unicode officially accepted our Power Symbols proposal into the standard. Now I’m delighted to announce that users on iOS 14 are finally able to use the full set of Power Symbols. ⏻ ⏼ ⭘ ⏽ ⏾ They’re available to use in the browser, in emails, and messages. Here’s how…

A USB Charger That Goes Up To 11 10

by @edent | , , , , , | 1 comment | Read ~565 times.

The good folks at Ntonpower have sent me this utterly ridiculous, and fantastically over-powered USB charger. It has ten frickin' ports each one capable of delivering 2.4 amps. So, what's it like? Straight up, it looks like a plastic toast rack. It's a chunky beast, but surprisingly lightweight. You won't have trouble lifting it, but…

Alexa powered smarthome control for Sonoff

by @edent | , , , , , , , | 3 comments | Read ~7,160 times.

I've been sent a couple of Sonoff smarthome gadgets. You can read my review of the S20 WiFi plug socket and the POW in line power controller. Here's a video of me controlling them from my Amazon Alexa: The latency seems a little slow - hard to tell if that's Amazon only relying on US…

Review: Sonoff Pow - WiFi power switch and monitoring

by @edent | , , , | 2 comments | Read ~5,873 times.

The good folks at Sonoff have sent me a bunch of kit to review. See my previous review of the S20 WiFi plug. This is the Sonoff Pow - a WiFi enabled in-line power switch. Set Up Wiring up the Pow is relatively easy. The cover to the terminal block is secured with a simple…

AC DC AC DC AC DC AC DC

by @edent | , , | 5 comments | Read ~1,358 times.

My solar panels deliver pure Direct Current electricity into my house. All my house has Alternating Current circuits. Therefore, I need an inverter to change the DC to AC. This is inefficient. Most of the electronic devices I own are powered by DC. So I plug little wall-warts into the AC sockets to convert back…

Let's get the IEC Power Symbol into Unicode

by @edent | , | Read ~904 times.

I've just launched a campaign to get the IEC Power Symbol into Unicode! A couple of months ago, I asked this question on HackerNews I was looking for the electrical "standby" symbol - AKA IEC5009 / IEEE1621. You know, the circle with the line through it. The one that's on every single bloody piece of…

How Our Solar Panels Have Performed After 1 Year

by @edent | , , , | 7 comments | Read ~255 times.

Last year, Liz and I took the plunge and had Solar Panels installed on the house we rent out. I've been tracking their progress, and so now it's time for our yearly update. We based our estimations on the Europa Solar Calculator which estimated that they would generate around 2,700 kWh per year. Annoyingly, we…