Here’s a ready-reckoner (sorry – old words) to compare different charging methods and costs for an electric vehicle. It quickly shows the better value of home charging at peak or off-peak tariffs vs charging...
want to DIY? Because I have daily uses for image-AI, I’ll explain below how I set about installing it ‘for free’ on a pretty good PC made for gaming. AI is mostly not free...
it’s not hard to make use of old or inexpensive 433MHz RF devices so that you can use them with modern smart home devices. For example, a 443MHz bell push button on my desk...
control all your smart thermostats from the Home Assistant dashboard When you have several thermostats there’s a need to see them at a glance. Home Assistant has a ’tile card’ that provides a compact...
This tank level sensor produces surprising detail about my heating oil usage. It’s a bit like a smart meter for oil so I now know say, how many litres I burned each day for...
what you need to set up a Bluetooth proxy A Bluetooth proxy requires almost any of the ESP32 development boards you can find at maker shops or Amazon. You need an ESP32-based board not...
You can connect the Switchbot water leak detector with Home Assistant without the need for a Switchbot hub. The detector uses Bluetooth and wifi to send out its alarms which will be picked up...
The Google Nest thermostat dial can have a wired connection and/or a wireless connection with the Heat Link base. A loss of wireless connection is a rare event and it usually fixes itself. In...
Smart devices often find their best uses in Home Assistant ‘automations’. ‘Automations’ are better known as ‘routines’ and they make quite unrelated devices interact with each other as will be shown below. What follows...
why the Creality K1C impressed can’t you think of any any negatives? For a critical reviewer, bringing more experience I’d point you to Daniel’s ‘CROSSLINK’ channel on YouTube. This is a search link for...
The situation: in addition to the router that serves your home with internet you’ve another router that could perhaps improve your wireless or wired coverage. The extra router could be any spare wi-fi router...
Remote homes and farms can get their water from a borehole – years ago the owner of my house drilled the garden until they found a water source. Today I see a manhole cover...
why a server? what can I use a home server for? a vpn, a router, an ad-blocker, storage for backups, a photo library, a music server, a printer server, a home automation hub, a...
TLDR: one morning too often I’ve woken to find that my ‘smart’ things has gone stupid and they haven’t turned on because the Raspberry Pi running Home Assistant has gone inaccessible. Your Home Assistant...
With today’s energy issues it feels unnecessary to heat rooms we aren’t using. Back in the day we fitted thermostatic radiator valves (TRV) to radiators in central heating systems. We dial in low temperatures...
visitors this year: 1,634 My boiler burns heating oil from a tank and unlike the ‘gas’ that most homes burn it’s finite – so when it’s gone I’m cold. Ordering heating oil is tricky...
visitors this year: 2,535 I’ve been using the Wireguard or nginx to access my home network* securely and I’ve explained in other posts (links below) how they’re used and set up. Tailscale however is...
visitors this year: 715 WS2812B strip – INMP441 microphone – WLED SR software – ESP32 board shopping list for these motion activated stairway lights – see photos wiring diagram for a microphone controlled LED...
visitors this year: 105 An LED strip 2 metres long runs beside the staircase. A sensor detects movement which triggers a light pattern along the strip. But if the sensor is a microphone, rather...
visitors this year: 6,169 You can graph temperature on this cute display and use buttons to turn on the heater as needed – the project works with Home Assistant and needs very little else...
visitors this year: 3,662 If you have curiosity and/or paranoia about what happens across your network there are tools which can gather information for you. This post will show how to install tools to...
visitors this year: 1,326 Moodle is a web-based platform where you can create learning activities, manage course assessment and pretty much run a school or sell courses. If your needs are small enough, you...
visitors this year: 431 This smoke alarm piqued my interest as a way to create an smoke/fire alert when I might be elsewhere. It’s unbranded and labelled as “C50D/W (1527, can skip code)” which...
visitors this year: 5,050 your need for a (nicer) sub-domain: At home you access an IP camera, a router, Home Assistant, a wi-fi access point, a NAS drive (eg Synology or QNAP) or perhaps...
visitors this year: 7,311 Time Machine is a backup utility on the Mac. This can work for years and then one day it doesn’t. If you need a file you had an hour ago,...
visitors this year: 3,185 Here is a tank level sensor that’s more useful than anything you can buy. This post focuses on my housing and the calibration for a basic sensor to measure oil...
visitors this year: 2,491 how to make a heating oil tank level sensor that’s more useful than anything you can buy. This sensor… Background: homes like mine use oil as a fuel to keep...
visitors this year: 4,724 how to make a heating oil tank level sensor that’s more useful than anything you can buy. This sensor… Background: homes like mine use diesel oil as a fuel to...
visitors this year: 631 tips on choosing cameras and using POE / passive POE and waterproofing the connection. how do I record activity from cameras? Buying a security camera system isn’t just for professionals....
visitors this year: 9,800 Let’s start with the reminder that an easy route to a security camera setup is to buy a kit with cameras and a system box to record events on site...
handling data from experiments / home & garden / monitoring at home
by Roger · Published Mar 2022 · Last modified Mar 2023
visitors this year: 1,860 I know that I ought not leave things powered on. Knowing that is easier than remembering that an e-bike or drone or laptop battery is still connected. Below I show...
visitors this year: 4,338 The very popular, but hardly-known Xiaomi nightlight, which lights up a dark space when you pass, now has a ‘smart’ version. A night light is nice on a dark stairway...
visitors this year: 1,300 see version 2 of this project here My initial want was for the stairs to have soft glow lighting … but what the hec, LED strip lights do more than...
visitors this year: 1,047 A ‘smart scale’ that records my weight to a phone might be seen as ‘gadgety’ and unnecessary but I’m now many months into this and think it’s fabulous. Almost fact:...
visitors this year: 560 GoPro, microphone and camera fittings are so ridiculously different, so here are some pointers to help buy the right bits to mount them. In all cases, even a GoPro (below)...
visitors this year: 1,238 when you want an e-bike and you don’t want another bike:
visitors this year: 341 , If you’re a casual electronics hobbyist like me, the idea of using a LCD magnifier or microscope may seem attractive. For example this music spectrum display kit requires soldering...
visitors this year: 1,141 topics on this page: what do I eat? how does my weight change? do I get enough sleep? where did I go today? how does my body react to exercise?...
visitors this year: 312 If you’re looking for a smartwatch, look at the Huawei Watch / Huawei Band 6 / Huawei Watch Fit New wearables If you’ve yet to get yourself a smartwatch I’ll...
visitors this year: 16,047 … I can now see my Huawei health data in Google Fit and Google Drive. The Health Sync app acts as a go-between, and connects Huawei health to several other...
visitors this year: 21,514 Why do this? At an early point on the journey to network heaven you may have a need to connect from some holiday location say, to a camera, your computer,...
visitors this year: 702 two meanings of getting out of sync: Scenario one: You’ve two independently controlled table lamps which you’d prefer to turn on or off together. The lamps could be smart lamps...
visitors this year: 368 What’s going on? Hec, I’m in a room with robot arms and fingers twitching as they respond to social media. THIS can only be art but it’s art powered by...
visitors this year: 10,343 The Netgear Nighthawk r7000 is a router, switch and powerful Wi-fi access point in one unit and even in 2021, years on from when it was made it still offers...
visitors this year: 368 There are LED strip lights where every LED can be doing something different with the result that you can create peculiar effects. You can start with a commercially available kit...
visitors this year: 6,472 Home Assistant is more useful if you can access this ‘home automation hub’ away from home. You can then control Home Assistant remotely with a browser or an excellent mobile...
visitors this year: 20,247 This page is for those who want to access Home Assistant from outside the home, and also want to access other devices, a router, a camera or a server on...
visitors this year: 311 Your smart bulbs, switches and door bell all come with a useful manufacturer’s app – over time you’ll accumulate many such apps. While Home Assistant might make them redundant, here...
visitors this year: 1,451 The digits at one end of a large LED clock displayed much more dimly than they ought. I’d say they were about half the brightness – and it was quite...
visitors this year: 920 If you need to know when a device, like a dryer or washing machine has finished working, get a ‘smart plug with energy monitoring‘. Amazon list many of them but...
visitors this year: 8,487 This ceiling ‘coffer’ is lit by four 5m LED strips – each is cut to fit the space. When my kitchen lights turn on they fade up in a few...
visitors this year: 4,141 If you use Home Assistant you can show temperature, time and other sensor entities on this cute display. The inspiration for this mini-project came from a need to display my...
visitors this year: 276 Without copying a screenshot to or using a USB stick (no!) All the day I capture useful or interesting images from facebook, instagram, desktop apps and web pages. I copy...
visitors this year: 1,251 Ovens may have digital controllers or analogue temperature controllers and cooks seem to have blind faith in their settings. In this household the cooks were burning food so I checked...
visitors this year: 2,298 My other page tells how much heating oil the boiler uses. Here’s how I collect and display energy use measurements around the home. My measurements provide two things – a...
rogerfrost.com is a compendium of ideas for using technology with sciencey questions in mind. Started in 1995 to offer ideas to school science teachers, its coverage now extends to gadgets, home automation, home living and sensors to help understand what’s going on around the house.
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