Electronics
Light the Lamp: a logic gate puzzle game
A free logic gate puzzle game: flick the switches to light the lamps, starting with one wire and working up through NOT, AND, OR, NAND, NOR and XOR gates to adders and memory.
Braindumps
Electronics, programming and retro computing, explained properly.
Tools
Electric car cost calculator UK: by number plate, with the 3p-a-mile charge
Type your number plate: the calculator reads your yearly mileage from your car's MOT history and shows what an electric car would cost you, at home or public chargers, with the 3p-a-mile charge from April 2028. It also shows how long one charge takes and what it costs.
Tools
MOT history check: advisories explained in plain English
Check any car's MOT history by number plate, with each advisory explained in plain English, the mileage readings checked, repeated faults picked out, and questions to ask a seller.
Tools
EV charging subscriptions: which one saves you money?
Type how much you charge at rapid chargers each month and see whether an IONITY, Tesla, bp pulse, GRIDSERVE, Shell, Fastned or Be.EV subscription would save you money, with each network's prices checked in October 2026.
LEGO
LEGO Black Friday 2026 UK: dates, deals and tips
LEGO's UK Black Friday dates, what is confirmed so far, last year's offers, how to tell a real discount, and the big sets retiring at the end of 2026.
LEGO
LEGO advent calendars 2026 UK: prices and what’s inside
All five LEGO advent calendars for 2026 with UK prices, the cost per day and what is inside, plus Santa's Holiday Countdown and where they cost less.
3D Printing
Free Christmas 3D prints: 10 of the best for 2026
Ten free Christmas 3D prints for 2026, from vase-mode baubles to a nativity kit card and a toy workshop, with print tips and what makers report.
Electronics
Capacitor code calculator: what 104, 473 and 2A104J mean
Type the code printed on a capacitor, such as 104, 473J or 2A104J, and get the value in pF, nF and µF with the tolerance and voltage. Works both ways.
Retro
PAL SNES games list: UK and European releases
Every Super Nintendo game released in the UK, Europe and Australia, with PAL release years, publishers, product codes and a checklist for collectors.
AI Tools
Can you make a good Commodore 64 game with AI?
Can AI help make a Commodore 64 game worth playing? How I built Van Helsing: A Night at Castle Dracula with Claude, automated tests, test players and play-testing.