How to build Jaycar’s Hee-Haw siren with flashing LED-PROJECT SC2 #3
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.