MAGIC LAMP PROJECT

101％ working project hello friends today I am gonna telling you about some easy and valuable electronics projects for school and college practical

This lamp produces fascinating light. It requires a decade green and blue LEDS . The colour control is based on a simple switching logic using twelve 1N4148 diodes.

The circuit works off a 9V battery. It uses a 4017 decade counter clocked by a simple flasher (blinking) LED1. When decade counter IC CD4017 (IC1) gets clock through blinking LEDI, it advances one by one up to seventh output and resets at the eighth out- put.

Fig1;circuit diagram

As a result, red, green, blue, yellow, magenta, cyan and white colours are produced in a cyclic manner. Altering the values of current-limiting resistors R5, R6 and R7 changes the colour impact of red, green and blue LEDs. Make sure that the resistance values are well within the current-carrying limits of red, green and blue LEDs.

The colour sequence of the LEDS can be changed by interchanging the output connections of the decade counter. A suitable light guide renders beautiful effects.

Should you require a speed variation in the clocking, use 555 IC in place of flasher LED1. Replacing the red, green and blue LEDs with higher- wattage versions and using suitable driver transistors will create a powerful magical light effect.