I've been working on a paper circuits workshop for Lancaster Light Night 'Explore Week' at the Storey (www.lightuplancaster.co.uk/exploreweek/) as one of the activities LAMM (lamm.space) are running. Its been fun to play!

I've added my sensor.community air quality data to Home Assistant. Really easy!
I'd love more people to monitor their local air quality, so reduced the price of the last few of my air quality monitoring kit (save £15 - now £54.95). You can order here: www.curiouselectric.co.uk/collections/...

Been making a batch of OPET units (Open PV Electrical Tool) - these are used for testing solar PV cells and modules. Not my design (designed by CREST at Loughborough Uni for NREL in the US) - I just built a batch for a project. Design is now open source: github.com/NREL/opet-ha...

Just been looking at the Historical Tech Tree (www.historicaltechtree.com) which is pretty fascinating. Surprised to see the anemometer invented before the screwdriver!

Finally got around to making my stoRPer from @concretedog. Picked it up at EMF, but needed to get motors and wheels. All running well from 18650 cell. Now I need to do some code...

After a couple of little updates, my solar powered house-plant moisture sensor kit is back in stock: www.curiouselectric.co.uk/products/sol... Might be interesting for the green fingered electronics enthusiast.

Laser cutting many maps. Working on a slightly different project with no electronics in it. Using the amazing, free and open source tools #QGIS and #Inkscape.

Had a nice email from a customer highlighting that their project (which we emailed about over 5 years ago) has now been completed! They now know what day to put the bins out....

Wanting to take your shed off-grid? - Then maybe our PV system kit can help you. It was originally designed to be used on the "Intro to solar PV" courses I run.
www.curiouselectric.co.uk/collections/...
Note: You still need to supply the solar panel and the battery!

I've worked with Makers of Imaginary Worlds (makersofimaginaryworlds.co.uk) on a number of interactive installations. A few weeks ago we built this prototype step trigger pad out of recycled plastics (at Future Makers www.future-makers.co.uk). Always great to have a hands on prototyping session!

I usually have one of my solar torches clipped to my bag whilst out for a walk (can you guess where I am?). OK - I've never really needed it but one day it will be useful!
Kit is a good intro to soldering. Can be ordered here: www.curiouselectric.co.uk/collections/...

Finally found a use for a load of circular magnets that were too good for scrap: magnetic toggle clamps for my laser cutter.
They work pretty darn well to keep warped ply flat or to hold a jig in the right place.

I've built a sign with random things I had lying around: RGB LED strip and a @Pimoroni Galactic Unicorn LED matrix with Pico controller.
Not quite sure why I made it as I don't have any in-person events planned yet.
What are the fun events happening in 2025 that I should maybe be at?...

Its taken me over three years (!), but I finally sorted out some calibration and verification for a DIY pyranometer (solar irradiance) sensor I've been designing. With my simple test rig I found out the sensors have about +/-10% output variation (the datasheet says 11%, so quite close)...