The following article describes a fancy LED sequencing/diverging ring type light which can be used as a tail brake light in cars. The circuit idea was requested by one of the avid readers of this blog, Mr. Bobby. lets learn more. Could this circuit be adapted to create a round tail light that lights rings in sequence from the center out as the bra
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ke is pressed, one ring at a time until all the LEDs are lit and then flash all the LEDs twice and keep all LEDs lit solid after If not, could you design a circuit that would I would be willing to pay for your time. IC1 which is a "serial shift resistor" forms the heart of the entire circuit, the main function of this IC is to illuminate the LEDs connected to pin outs #3-4-5-6-10-11-12-13 in a sequence, keeping the sequence latched and illuminated as it proceeds. This happens in response to each clock pulse applied at pin#8 of the IC. The LEDs which aretriggeredby the pin#3-4-5-6 and 10 are arranged as rings such that it illuminates from inner most ring first toward the outermost ring, producing an interesting and visually rich effect. In response to the above clocks, the sequence proceeds creating the desired diverging illumination effects, until it reaches pin#10. The LEDs receive the required positive supply through T1 which stays triggered due to the low logic at pin#13 of IC1 The LEDs which needs to be connected across the collectors of T1 and T2/T3/T4/T5 may be wired up in the following manner. The arrangement should be designed in a circular manner to form the corresponding RINGs.
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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