| Did you know that many projects published at Elektor Labs include the word “simple” in their title? The one we highlight this week is one of...
All items tagged with Simple and Alarm (4)
| Most darkness activated alarms employ opamps and some logic ICs. Here, a less expensive approach is shown based on the eternal 555, this tim...
| The circuit presented here is a very simple and yet highly effective alarm system for protecting an object. The circuit requires no special...
| The circuit presented, although a simple design, guarantees a prompt and reliable indication of any form of water leak. It is hardly l...