simple water level indicator
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5 Zone Alarm Circuit
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Allarm circuit
Building a personal alarm system is both practical and engaging. The most rewarding aspect is demonstrating its functionality to friends by activating the alarm remotely, saying, "I completed this in a weekend." Customizing the alarm system offers maximum flexibility, allowing...
water level indicator
This is a straightforward water level indicator circuit or water level sensor circuit. The circuit is simple to construct and consists of three PNP transistors along with several other components. It serves as a practical solution for detecting the water...
Simple Multi-Tone Alarm Circuit
The figure illustrates the circuit diagram of a multi-tone alarm, which fundamentally operates as an amplifier circuit. The core component of this circuit is the dual.
The multi-tone alarm circuit is designed to produce various sound tones, enhancing its alerting capabilities....
turret diy
For maximum mini-security, this RC Tupperware Turret delivers a formidable deterrent against food theft. While it lacks motion sensors, potential food thieves will think twice before attempting to swipe baked goods. This 11-hour project, designed by Chris of PyroElectro, emphasizes...
Automatic Room light Control With Bi Directional Visitor Counter
The objective of this project is to create a controller-based model that counts the number of individuals entering a specific room and activates the lighting accordingly. This is achieved through the use of sensors that detect the current number of...
Add a sensor to a board and measure something with it
This week's plan is to build a device that warns of the potential for a knockdown, which is the process by which an over-canvassed ship is laid over on her beam-ends. The risk of sinking is high during this event,...
Enhanced Alarm
This is an enhanced version of the simple Garage/Shed Alarm. The entry and exit delays have been increased to approximately 30 seconds, and a timed siren cut-off and automatic reset have been added. The LED has been replaced with an...
Single Zone Alarm
A single zone alarm circuit with entry and exit delay and other facilities. The circuit features automatic exit and entry delays, timed bell cut-off and system reset. It has provision for normally open and normally closed switches and will suit...