How to make heart-shaped LED water light yourself?

Here is a highly mobile loop color light kit products, this subsection package contains 18 red LED water light (light emitting diode ), is divided into three rent, arranged to form a heart-shaped pattern, driven by a transistor oscillator circuit, so that the red heart-shaped pattern continued clockwise shiny, especially when used at night, which very exciting.

18 LED water light were divided into three groups. Whenever the power is turned on, three pilot pass transistor will fight, but because of differences in components, there will only be a triode most pilot pass, assuming V1 most pilot pass, then LED1-LED6 lit, because V1 conduction, its collector voltage drops down the left makes the capacitor C2, close to 0V, the voltage across the capacitor can not change suddenly, so the base of V2 has also been pulled approximation 0V, V2 closed, so its collector connected to the LED7-LED12 off.

Therefore, in this time, V1, V3 are low collector, LED1-LED6, and LED13-LED18 is lit, LED7-LED13 off, but with the power supply through a resistor R3 charging of C2, V2 base electrode voltage is gradually increased, while when it exceeds 0.7V, V2 from the up state to the conduction state, the collector voltage drop, LED7-LED12 light. At the same time, V2 decrease the collector voltage of the capacitor C3 by the base voltage of V3 is also reduced, V3 changes as the conduction, its collector voltage rises, LED13-LED8 off. Next, the circuit according to the above described process cycle, three groups of 18 LED water light will be lit in turn, the same time there are two groups of 12 LED is lit. These LED are arranged in a cross heart-shaped pattern, clockwise loop continuously flashing light, to achieve the effect of flow visualization.

The assembly process can refer to the above schematic and PCB layout, installation is very simple, do not install the wrong welding position, polarity is not reversed, basically no problem, no debugging.

Heart-shaped loop welding assembled the most suitable light at night relatively dark environment, viewing distance of 2 meters away more vivid and interesting. You can festive holiday, celebrations, anniversaries and other occasions warm out show. As dressing, you will win the praise of friends and family, as well as their novelty eyes. I believe that through the production and presentation of this package, you will experience an unforgettable practice and training process. Please enjoy the joy of success.