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 ...

Here is a gas leak detector circuit that detects the leakage of LPG gas and alerts the user through audio-visual indications. The circuit operates off a 9V PP3 battery. Zener diode ZD1 is used to ...

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… ...

In the video embedded below, he shows off a homemade voltage detector circuit that he constructed using a trio of BC547 NPN transistors. The circuit is pretty simple though very useful all the same.

Fig. 2. Two-pole AFCI circuit breaker can be used on a variety of 120/240 Vac circuits. Fig. 2 is a block diagram of a two-pole AFCI circuit breaker.This device can be used on a variety of ...

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.