The circuit is an astable mode timer. The output frequency of the NE555 varies with the change in resistance of the photoresistor. When you block the light falling on the photoresistor, its resistance drops and that contributes to the change in frequency of NE555.Continue reading
This is an LED flasher kit based on NE555 and 74HC595. The LEDs on this kit scroll and give a water flowing effect.Continue reading
This is a basic electronic DIY kit for beginners. The kit generates a light explosion effect with several LEDs. The scrolling of the LEDs is controlled by CD4017 and NE555. You can adjust the speed of the explosion using a potentiometer. You need basic soldering skills to build the kit. It takes about an hour to build the kit for beginners.Continue reading
This video shows all the steps to build the HEE-HAW Siren Project from Jaycar. The kit is based on NE555 IC. The timer NE555 IC is configured in astable mode.
You will hear a hee-haw siren similar to an ambulance and you will see the two green and red flashing LEDs.
This video teaches you how to build a simple clap switch circuit on a breadboard using an NE555 timer.Continue reading
This touch is based on monostable mode of NE555 timer chip. Simply follow the schematic shown on the video and touching the wire connected to pin 2 of NE555 will turn on the LED connected to pin 3 of NE555.Continue reading