A simple dark sensor circuit designed for security purposes uses the timer IC 555 This electronic design can detect low light levels and activate a response such as turning on a buzzer or a light. It employs a standard light-dependent resistor LDR to sense light. This circuit is quite handy for various security applications such […]
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Simple 555 Timer Based Animal Repeller Circuit
A simple electronic device called the 555 Timer Based Animal Repeller Circuit has been cleverly designed to keep animals away from certain areas. This device works by producing a high pitched sound that many animals find uncomfortable but humans usually can not hear it. The main part of this device is the IC 555 timer […]
Build Your Own Solder Fume Extractor Circuit
Since soldering may release toxic vapors that are bad for your health, every workstation needs to have a good smoke extraction system. This simple soldering smoke extractor circuit uses a few easily accessible electrical parts to reduce harmful vapors. This circuit provides a useful way to keep a workplace that is safer and cleaner by […]
Build Your Own Door Knob Touch Alarm Circuit
Simple yet efficient alarm systems may significantly increase the safety of homes and companies at a time when security is of the utmost importance. This simple project, the Door Knob Touch Alarm Circuit, uses a 555 integrated circuit to sense unwanted entry by touch. When someone touches the door knob, this circuit not only serves […]
Digital Code Lock Circuit using Arduino
Everywhere in the globe, security is crucial and it presents a significant challenge for locations that maintain secrecy. This initiative contributes to increased security. This project uses an Arduino, a tiny microcontroller to create a basic lock. Using an Arduino UNO board, a keypad module, a buzzer, a 16×2 LCD, a BC547 transistor and a […]
Simple Thyristor Switching using Snubber Circuit
In this article thyristors are switches used in power electronics to regulate high voltage and current. They are often referred to as SCRs (Silicon Controlled Rectifiers). A gate signal activates them, and the only way to turn them off is to stop the current flow. On the other hand, voltage spikes and abrupt current fluctuations […]