Fantasy lights, wonderful changes can be used to store, dance hall or family holiday decorations. Its control circuit is shown. Lantern multivibrator control circuit, a control
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circuit and thyristor trigger circuit and step-down power supply circuit. AC step-down rectifier circuit is IC1, IC2 provides + DC voltage of 9V. IC2 use lights control ASIC YX9010, its memory chip has eight lights control. This manifold peripheral circuit is very simple. It can be controlled manually or automatically. AN manual switch, every press time, the display lights transform a program can be realized four lights all light, fast forward and slow cycle flash, fast flash and slow cycle backward forward transformed flash and so on. SA automatic mode switch, it will be 3 feet of IC1 output contact (closed), automatic conversion and control lantern. IC1 (555) and R1, RP1, R2, C1, etc. to form a multi-harmonic oscillator, its oscillation period T 0.693 (R1 + 2R2 + RP1) C1 Period of oscillation parameters given in illustration is from 5 to 76 seconds, the duty cycle is close to 1: multivibrator pulse 1.IC1 added to the IC2 output control mode switch terminal 13 feet, each time to a high level, special lights IC2s output of a, B, C, D state transition time. With no steady-state circuitry constantly flip, flash lights and color patterns are constantly turned over, again and again followed by conversion to produce fantastic results. Circuit thyristor power according to the load size selected lights, optional 3CTS-1A, 3CTS-3A, SCTS-5A, require not less than the reverse breakdown voltage of 400V (D grade) triac.
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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