how to know when the washing machine has finished
SHORT NOTE: If you need to know when a device, like a dryer or washing machine has completed its work, get a ‘smart plug with energy monitoring’. Amazon list many of them but whichever...
Tagged: Home Assistant
automated fade up dimmer for analogue LED Strips – using a MOSFET and ESPhome
This ceiling ‘coffer’ is lit by four 5m LED strips cut slightly down to size. In 2017 digital LED strips were rare. If you wanted really, really bright light, analogue white LED strips were...
see your Home Assistant entities on a TTGO T-display ST7789V TFT LCD
The inspiration for this mini-project came from a need to display my oven temperature in a convenient place in the kitchen. I might instead need to see the time of the next train, the...
what is the actual temperature of your oven? how to cook reliably with an expensive but inaccurate oven
My household can’t be the only one that burns the food. The dial on this shiny, expensive Smeg oven not only gives a wrong temperature, the temperature varies over a wide range. I replaced...
how much oil / electricity do I use in a day – Home Assistant or espHome
The measurements that I take around the home provide two things: – a picture of a moment in time – a room temperature for example. – how something changes over the course of a...
how to integrate 433MHz temperature & humidity sensors with Home Assistant
A home automation platform, such as Home Assistant, allows you to make temperature v time graphs using sensors that you might place around the home. Monitoring temperatures allowed me to get my heating devices...
can I integrate ‘HomeEasy’ 433MHz devices with Home Assistant?
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 automation to turn things...
use one switch to turn on two lights – in any combination
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 the other or have...
T4EU1C and Home Assistant
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 few switches. But then...
set up rflink to respond to 433MHz devices and then integrate them with Home Assistant
In this project we integrate inexpensive 433MHz RF devices with modern smart devices see also: 433MHz smarter letterbox how to set up RFlink so that it will read your RF sensors The easiest ready-to-roll...
project: plot the temperature of your fridge-freezer, pet home or fermenting wine on a history graph in Home Assistant
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 can record measurements and...
how to toggle the state of a light or switch for Alexa in Home Assistant
The touch light switch on the wall lies in wait for someone to press it. When it’s on a press turns it off and when it’s off it turns on. That’s toggling a switch....
take your D-Link DCS-D150 out of the cloud and into Home Assistant
I wouldn’t especially recommend the D-Link DCS-D150 motion sensor but it does have some features that had me buy it. Firstly it plugs into a wall socket above a worktop so it can sense...
project: plug-in energy meter with graphs of energy use over time
‘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 combination oven, fan heater...
control a sonoff switch using eWelink and Home Assistant – without IFTTT or firmware flashing
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. It works over wifi...
control a sonoff switch from Home Assistant using IFTTT
The regular way to switch a Sonoff relay is to use the official ewelink app – however Home Assistant doesn’t* work with ewelink. Other ways require you to ‘flash’ the Sonoff device with Tasmota...
send sensor data from Home Assistant to a spreadsheet
The Home Assistant dashboard (aka ‘Lovelace’) is very good at displaying live sensor data and sensor data from the last several days. As you can see below you can display a ‘just now’ reading...
433MHz (aka RF) sensors and devices are good value
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 you probably own some...
best uses for a smart socket
smart sockets have uses. A smart socket adds a little cleverness to a table lamp or electric heater. The printer upstairs takes five minutes to warm up so switching it on by remote control...
project boxes for ESP32 and other microcontrollers
How does one house an electronics project? Is there a neat way to house a smart doorbell and camera? I don’t relish the effort to design a 3D model. Maybe I was looking for...
433MHz smarter letterbox – for when you don’t want to walk to the letter box
see also more about 433MHz devices The letterbox is five doors and fifty metres from my desk. The uncertainty of the post lady arriving in the afternoon means that I make wasted journeys to...
smart sockets vs smart bulbs – introduction
smart bulbs and sockets have select uses. A smart socket adds a little on/off cleverness to a table lamp, electric heater or the printer upstairs that takes five minutes before it’s warm and useful....
what home automation offers – introduction
When you look for home automation equipment you find many systems. They turn on lights and plug sockets; water the garden; unlock a door, turn up the heating; record a security camera, open the...
a case for a home automation platform – introduction
Even if you’ve no need for as much as a smart bulb, you do need to be impressed or surprised by the variety of smart gadgets on sale. There are smart door locks, garage...
calculate how long is the day
… and see how to add features to the Home Assistant display An interest in solar energy is a possible reason to record the sun’s azimuth and the time of sunset. Home Assistant can track...
project: smart thermostat – nest and hive
The Google nest thermostat or its Hive equivalent are items which I’d be happy to pay for rather than make. A first reason is that we rely too much on warmth, and a second...
extending Home Assistant (esphome 2)
If you want to make your own smart measuring device or presence detector or dog watching camera or tea bag lifting robot, the ESP32 and Arduino circuit boards make the gadget you need. A...
start using home assistant (esphome 1)
what you need to run your own home automation server Raspberry Pi – a kit with Raspberry Pi 3+ or later with the recommended power supply, 32Gb SD card, heatsinks and/or cooling fan. A...
link an ESP chip with Home Assistant (esphome 4)
When a ESP32 device has been flashed and powered, it will use the password you added to the code to connect to your wifi. The ESPhome interface in Home Assistant (pic below) will show...
customise a Sonoff smart relay (esphome 3b)
‘own’ your own devices THE PROCESS BELOW IS STILL USEFUL – HOWEVER SINCE I WROTE THIS MOST SONOFF DEVICES WORK NATIVELY IN HOME ASSISTANT – SEE HERE ESPhome can be used to reprogram a...
flash a ESP32-CAM to make a smart camera (esphome 3a)
ESPhome is software that can add a program to (or “flash firmware to”) an ESP chip. This chip is at the core of many automation projects. The software connects things up inside Home Assistant...
automation: turn off the heater if it’s already hot
The Sonoff POWR2 can be used as the timer on a hot water immersion heater. This model also measures electricity as volts, amps and current. I’ve flashed its wifi chip with different firmware so...
automation: routines that do things or alert you
ready dec 2020
some uses for a raspberry pi computer – introduction
A Raspberry Pi is a small inexpensive low power computer that has numerous uses and hopefully there’s one that chimes for you. I don’t think you’d want to use a Pi for emails and...
project: cameras around the house
There are a variety of camera types to help monitor the drive, a pet, a baby, a device, a bird feeder – whatever. You might want to know what’s eating the rabbit’s food or...
project: does my broadband speed vary?
Here’s how to add a little functionality to Home Assistant, the automation platform. Do try this especially if you’re just starting to add features to Home Assistant. speedtestdotnet: scan_interval: hours: 4 Go to the...
project: a screen with all I need to know just now
There’s less value in having a camera pointed at the front door if I need to click too many things to see it. The home automation platform Home Assistant lets me fill a screen...
automation: turn on lights when I enter the room
The LED striplights in a kitchen use 12v transformers and they are powered through smart plugs / sockets. The sockets are by TP-link – and they remember their on-off state if ever there’s a...
project: smart electricity meter with historic energy use
fit a sensor to the electricity meter for a minute by minute readout The UK electricity meter has a display showing electricity use in kWatt, and every few months someone pops by to read...
