visitors this year: 315 a tank level sensor that’s more useful than anything you can buy. This post shows my housing for a sensor that measures oil and water levels. The sensor is a...
visitors this year: 827 make a heating oil tank level sensor that’s more useful than anything you can buy can measure oil level in any unit – litres, kWh, gallons or days until I...
visitors this year: 1,177 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: 155 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: 163 There are ‘analogue’ LED lights on a tape that do a fine job of creating interesting lighting. All the LED lights on the strip usually do the same brightness or...
visitors this year: 1,822 If you want to use a GitHub project with Arduino software follow this step-by-step guide. We’ll make an ESP32 camera web server using the Github code from ‘easytarget’. An ESP32-CAM...
visitors this year: 1,968 How do I safely house an electronics project? Is there a better way to mount a ESP-CAM camera? I’d been looking for boxes in the wrong shop so I found...
visitors this year: 13,177 These instructions may help you upload a fireware.bin file to an ESP32 dev board. You are not alone if you meet a problem uploading a firmware bin file to an...
visitors this year: 594 ‘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...
visitors this year: 16,895 Costing less than £10 or $10, the ESP32-CAM board comes equipped with WiFi, a camera and a micro SD-card slot. It needs a little work to turn this ‘development board’...
visitors this year: 441 Dupont leads connect up projects. They come as male to male pin / female to female / male pin to female types. You can solder the male ends to a...
visitors this year: 182 “… It’s an ESP32. Yes but which?” ESPRESSIF is the company that markets chips such as the ESP8266 and ESP32 and ESP32-CAM. Other companies buy those chips and fit them...
visitors this year: 833 The Xiaomi Mijia sensor runs for ages on a AAA battery and it can be stuck to a wall to show the temperature and humidity. It’s an attractive Bluetooth Low...
visitors this year: 2,826 fit a sensor to the electricity meter for a minute by minute readout The UK electricity meter shows electricity use in kWatt hours, and a human sometimes pops by to...
visitors this year: 37
visitors this year: 3,970 make a heating oil tank level sensor that’s more useful than anything you can buy measures oil level in any unit – litres, gallons or days until I need to...
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, Roger Frost expanded the coverage to home automation, gadgets and sensors to monitor, or understand, what’s going on around us.
The search works – the menus, tags above and categories will find it.
Contact us in Cambridge, UK: leave a reply on this page
Roger Frost has been writing since 1988 and this web includes his published articles about the use of the Internet; the work of scientists and how technology is useful at home or school.
Please enjoy this ad-free content and share it. You are welcome to say hi – there’s a reply button on each page that goes straight to me.
HOME AUTOMATION:
