| This new kit is a variant of Elektor’s earlier published sand clock. Instead of writing the time in a layer of sand, it uses a laser module...
All items tagged with LED and Sand Clock (3)
| The Peltier lamp offered by Elektor is a project with a surprising principle: power a LED reading lamp with the energy from one candle. The...
| Writing the time every minute – or at any other adjustable interval – into a layer of sand is the star attraction of a cool project develope...