Test your IC555
Did you accidentally hook up your IC in the wrong way ? wanna find if it still works? well this is where the below circuit comes in handy , this is an astable multivibrator circuit , If your “Test” IC is alive then the led blinks in an alternate fashion.
Working:
” Astable mode ” means that that none of the generated states is stable , ie the out is a varying square wave , the width of the positive and negative pulse can be set by changing the values of R1 and R2 . When the IC is working , a square wave is produced , when the state is high , The LED2 glows and when the output goes low the LED1 glows.
Note :One can use a IC555 timer software for designing circuits .
Here is the video :
