use a smart switch to turn off a lithium battery charger
visitors this year: 1,554 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...
Tagged: Sonoff
how to stop a smart lamp and smart switch states getting out of sync
visitors this year: 570 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...
how to know when the washing machine has finished
visitors this year: 760 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...
measure how much oil / electricity I use in a day – Home Assistant or espHome
visitors this year: 2,051 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...
can I integrate ‘HomeEasy’ 433MHz devices with Home Assistant?
visitors this year: 2,116 Yes. Below you’ll see how to control HomeEasy devices through Home Assistant and the RFlink receiver/transmitter. (This also controls other manufacturers’ wireless sockets). You’ll be able to create timers and...
use one switch to turn on two lights – in any combination
visitors this year: 408 The need: you use a table light for watching TV and a main (wall) light at other times and you want a coffee table button to switch between one or...
T4EU1C and Home Assistant
visitors this year: 723 a 3-gang wall switch for your home automation – using eWelink, T4EU1C and Home Assistant I got to a point where I had plenty of ‘smart’ lights and gadgets but...
set up rflink to respond to 433MHz devices and then integrate them with Home Assistant
visitors this year: 29,745 a project to integrate inexpensive 433MHz RF devices with modern smart devices. We’ve brought all the instructions to get going with RFlink on one page. see also: 433MHz smarter letterbox...
project: plot the temperature of your fridge-freezer, pet home or fermenting wine on a history graph in Home Assistant
visitors this year: 1,741 In a previous project I set up temperature sensors in my room and sent the data via Bluetooth to Home Assistant, the home automation platform. Home Assistant is software that...
project: plug-in energy meter with graphs of energy use over time
visitors this year: 722 ‘Smart meters’ and metering devices usually measure the electricity used by the whole house*. However I prefer to pay attention to the electricity used by individual devices, such as a...
control a sonoff switch using eWelink and Home Assistant – without IFTTT or firmware flashing
visitors this year: 5,783 In this project I control a Sonoff light switch using Home Assistant. You can do the same with other Sonoffs. The switch shown here is the T4EU1C wall plate switch....
control a sonoff switch from Home Assistant using IFTTT
visitors this year: 1,056 The regular way to switch a Sonoff relay is to use the official ewelink app. Other ways require you to ‘flash’ the Sonoff device with Tasmota or ESPHome software and...
433MHz (aka RF) sensors and devices are good value
visitors this year: 2,604 How to make inexpensive, ‘old’ technology, 433MHz devices work with today’s smart devices see also: 433MHz smarter letterbox RF sensors and receivers If you’ve used any of the following examples...
433MHz smarter letterbox – for when you don’t want to walk to the letter box
visitors this year: 1,021 see also more about 433MHz devices The letterbox is five doors and fifty metres from my desk. The uncertainty of the postie arriving in the afternoon means that I make...
customise a Sonoff smart relay (esphome 3b)
visitors this year: 1,001 ‘own’ your own devices THE FOLLOWING PROCESS IS STILL USEFUL – HOWEVER SONOFF DEVICES CAN WORK WITHOUT MODIFICATION IN HOME ASSISTANT (SEE HERE) AND THE EWElink app. THE ADVANTAGE OF...
project: an immersion heater that turns itself when the water is hot – using a Sonoff POW relay.
visitors this year: 1,062 Domestic hot water can be heated by a gas or oil central heating boiler or by an electrical immersion heater. I take advantage of half-price nighttime electricity and use an...
