Smoke detector with gas sensor TGS 813 – source. The simple schematic diagram of a smoke detector presented here utilizes the gas sensor TGS 813 as the main detecting component. The circuit is pretty ...

This is not an infrared motion detector! The IR detector circuit in principle, converts the IR signal pulse trains into noticeable aural notes. S1 is used to switch on/off mains power and LED1 ...

When you think of a radiation detector, you’re probably thinking of a Geiger tube and its high voltage circuitry. That isn’t the only way to measure gamma radiation, though, and [Alan] … ...

The beginner’s guide for hobbyists and makers unlocks some of the practical secrets behind lightning detection design.

Looking for a light project to teach young hackers some very basic electronics? Here’s a quick and easy weekend project, a simple metal detector! We all know 555 timers are very useful and po… ...

The circuit in Figure 1 can detect an overcurrent condition and send an alarm signal to the ECU within 100 ns. The circuit employs an AD8214 high-voltage threshold detector.