This is a simple 555 LED flasher circuit using NE555 IC and few external components. NE555 is a famous timer IC performs wide variety of timing tasks in circuits. This circuit is working as a stable multivibrator and the oscillation frequency depends on the values of 1K, 4.7K, 100K Pot and
10uF capactor between pin 1 and 6. The circuit can be operated from a 6V battery or power supply.