ULN2003a ic working,datasheet,Proteus simulation, it's use with Arduino as relay,led,solenoid driver 

Very helpful. Thank you.

Really good video. Had a little trouble understanding you but only due to the accent, nothing against the content at all. It was very good! Thank you!! I especially liked hearing about the Proteus software and that you can simulate Arduino sketches in real time!! This is amazing!

Excellent tutorial.! Is it possible to control motor speed with PWM? IS there a diagram?

wait ,in your scemathic where is pin 8 in ic uln2003A?

Is it safe to toggle states of 7 relays with 2003a?

Botsok your voice was the only one i heard lol

good video but scrap the muzak-why is it there?

I can use this chip to make a h bridge?

can arduino relay module connect to this cct?

Why do you say "is most commonly used in electronic circuits?" do you stick it somewhere else? Its only used in electronic circuits because ... it is an integrated circuit ... so as soon as I heard you say that the video lost my interest. Just a tip - don't say meaningless statements.