555 Timer - Pulse generator assembly 

The error's cause can be the breadboard because of it's "chaotic" nature with most frequency applications, which are very sensible to the high(compared to soldered circuits) resistance and capacitance of the humble breadboard. Keep it up with high quality videos like this one! Subscriber earned.

Love the component labels and clean breadboard layout! You should make some more videos, they're so good

Great video. Please make some more

Informative video!

wow, great didactics!

Quality video dude 👍👍👍

thanks for sharing this video........................👌👌👌

Can I use this to generate 1 Hz pulse? I'll set RA to 680 ohm, RB to 6.8 Kohm and C to 100 uf, Vcc is 5V. Everything else will be like the video setup. I need this pulse to be fed into a 7474 as a clock later on.

the best

Very nice sir

Thank you

I don't like the "standard" circuit of the NE555 given in the datasheet for several reasons. And I also preferrably use the TLC555, because it has shoot-through protection and a symmetric rail-to-rail output. So I can control charging and discharging of the capacitor directly over a resistor from the output pin, which gives a good 50% duty cycle. The "standard" circuit wastes a lot of current if you use low values of R1, like 220 Ohm. At 5 V operating voltage the circuit consumes 23 mA or 135 mW unnecessarily. This is quite a lot. The NE555 consumes also 3 mA at 5 V and every swithing event at the output can lead to shoot-through current of 200 to 300 mA. The TLC555 only consumes 0.5 mA. The discharge pin can be used as an open collector output to draw multiple device to the same output line. So I don't like to use it just for the discharge of a capacitor. So I have my very own philosophy to use 555 timers in circuits and most of my circuit designs differ a lot from the standard.