This flashlight triggered burglar alarm circuit will instantly switch ON an alarm as soon as it detects light from the burglar’s torch or flashlight. Burglars and thieves normally set out […]
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LED Light Wave Effect Generator Circuit
The post explains a simple LED light wave effect generator circuit which will sequentially create a difference in brightness over a chain of LEDs, creating a chasing light wave kind of visual effect.
Design your own Sine Wave Inverter Circuit from the Scratch [Tutorial]
In this post we will discuss comprehensively regarding how to design a sine wave inverter without any form of coding or complex circuit designs. The included designs are simple yet […]
Ding Dong Bell Circuit that Saves Electricity
This circuit goes beyond being a simple two-tone doorbell. Instead, it utilizes envelope modulation to produce an authentic ‘ding-dong’ chime sound. Additionally, it incorporates a power-saving feature, consuming zero power […]
Footsteps Detector Circuit
By sensing vibrations from footfall, a Footsteps Detector Circuit is a creative and affordable approach for catching intruders. It employs a simple setup with a low-cost loudspeaker and a mute […]
Battery Low Voltage Alarm Circuit
Despite its simplicity, the Battery Low Voltage Alarm circuit has a very important function. It forewarns you of approaching battery failure so that you may run to the store and […]