555 Timer Project - Signal and Sound Generator 

As a rank beginner, that was the most informative video on 555 chips I've seen so far. The only one that has explained each pin's purpose. Thanks.

Thank you so much for this video. I'm starting out with practical electronics and this was the easiest tutorial I could find on how to make this circuit. Your explanations were easy to understand and I liked that you went through everything step-by-step with a clear view of the breadboard while building it. Next step is the Atari Punk Console since this is essentially the first half of that.

Oh! the "555" has been around for as long as the universe and we ALL still love that chip

This was one of my first circuit related projects, and I gotta say it was crazy hard. Learning how to read a schematic, and figuring out how to put it all together was a crazy learning curve, but was totally worth it. Thanks for the help man!

Just built this and it works :) First step in building my own synth, haha

This is an AWESOME video and explanation and I hope you're still doing them. You mentioned requests. I'd love to see this circuit used to inject a signal into a length of wire and then another simple circuit to detect when it comes across that wire -- just a no wire/found the wire result. It could then be used to set a perimeter for robots, etc. Thanks for the video!

As per Marc Ardnt 1's comment below I too am a rank beginner and found this tutorial the best so far, thank you

Super informative..I'm retired and a fixed income.This is great. will building it very soon

I wish I had found this four years ago I have just now found the subscribe button on. This kindle device. I want more of this. Great tutor Thank You.

thanks for posting . I am a digital musician who seeks to understand how the basic audio waves are produced and generated. i am trying to build my own curcuit to gain full knowledge of how it all works...

Once at 60hz, measure resistance of pot, add it to the resistor you bridged across and replace both with a resistor of that new value. Now you have a 60 cycle generator. This is for the beginners.

Good tutorial, very straightforward and easy to follow with one of the most versatile chips ever, the good old 555.

Best 555 explanation and thorough/clear and perfectly paced wiring example EVER! Great video! ...note I need to learn how to make a loud buzzer from 2 timers and a piezo buzzer n I'll be golden!

Clear and concise step through.👍 I ran the circuit from a 5v wall wart with no problems.

Excellent !!!! Thank you very much Dorian. I will put this circuit to the test within the next week. Refreshing to see RU-vid members that are so helpful.

thank you very much...you have explained well about why its not neccessary to use the capacitor connected to pin 5

Awesome vid! You explain the how and why parts in easy to understand ways. I'm waiting on my first scope coming so looking for things to build that'll let me play around and learn how to use it. I'm a complete beginner getting into hobby stuff. This is a perfect wee project that I sort of understand so will have great fun tinkering around. Thanks for sharing! ☺

yes best video for beginner that ive seen. your actually a good teacher unlike most

I got the 100 khz I need. Thanks for this circuit. Now I can build the high frequency circuit I want to build.

Can't believe you don't have more subscribers. Some solid shit here. Great info. Thanks.

Dorian..,thank you so very much.,now from all the tutorials i have study this is the only one that was so E Z to understand .,now i feel confident that i can start getting all the parts and pieces to start building timer ..thank you

Hello Dorian, This description is very well done. Good voice, good pace, good explanations with no BS. Great job. Thanks

That was such a good explanation with no bullshit. Exactly what I needed, thankyou.

This is the first and only video of yours that I have seen. I have seen many electronics tutorial videos on youtube. This is one of the best videos that I have seen. I like that you kept it simple, used an actual schematic and actual breadboard and components and jumped back and forth on how you were putting it together because I see the schematic have an idea of what's going on (ok thats a resistor, thats a capacitor, thats a transistor, that black dot on crossing lines mean that they connect...etc.) But I have a hard time translating that to the breadboard. Other people make vids by drawing out whats going on or making animations, or they make rapid short scenes on what is getting done with little and rapid explanation. Im really interested in dabbling with electronics, as mentioned before I have seen many videos. I went to radio shack and bought an assortment of resistors, of disk capacitors, diodes, a breadboard And now im like now what? what can I do with this? on that note this video gave me insight on what the 555 timer can do But now what? how can I utilize this circuit if I Build it?

Yes, this circuit is useful. In class, I achieved building an astable & monostable circuit.

Thank you. I am also needing a simple square wave output at anywhere between 25 and 100hz for a false signal. This has been extremely informative -Sid

Muchas gracias!!! thanks Dorian! This is a great video, well explained. I made theproject and really works! Trying to put various circuits like this in a box to make good noise on stage!! Congrats and thanx

does is posible to input an audio signal to mix it with the squere wave signal that changes with the pot? it is an amazing explanation.

Hi and thank You, this is the first tutorial that actually worked for me :) Great explanation and step-by-step wiring.

Thanks a lot I understand what the pins on the 555 do. Now I am going to make a resistance based piano courtesy of RadioShack lol. Thanks for the video.

Excellent explanation and presentation. Will certainly look for more. Love that little chip.

Great explanation!!! You should do a video with the 555 and a latching switch made with diodes.

thank you for very informative video tutorial. i have LM555 and NE555 and was wondering it would make a difference. Also was wondering it would sound different if i use different ohms of speakers. Thanks!!!

Great video! Thank you so much for putting this together for us, it was very helpful to me, I put one together and it works perfectly, now I'll expand on it.

can we use other capacitors instead of it

interesting that 60Hz signals do not produce 60Hz sound waves, which would be the lowest subwoofer sound the human ear could (maybe) hope to hear. I wonder if the offset between the electrical freq and the audio freq is linear or what.

Now, I want to build more circuits with the 555 timer IC.

Exactly what i was looking for.

Out of curiosity, can you power multiple copies of this circuit off the same 9v power supply on one bread board?

Very informative and straight forward video, thank you!

I got there! a proper dub siren with lights...thanks again.

GREAT video explaining the setup and triggers, and the second is great too. Can the 555 be used to trigger second 555, so you would have a ..|.|.....|.|..... pattern on the scope, and adjust the timing between the two?

I hooked this up to a speak but no sound. I hooked it up to my oscilloscope but i wasn't sure what to look for. I wish you could have hooked up an LED so we could test it. I tried the led positive at pin 3 and it's ground to ground but no luck. i don't have a 15k resistor so i wired a 10k with a 4700k resistor. Other than that, followed to the letter. Doesn't seem like that would be a factor though.

I really appreciate your work. NIce Job! I will be really glad to know how do you think on a project, I mean the design and the components and everything.

You helped me build my first successful oscillator! thanks so much!!! What would you reccomend to get more range out of the pitch? What resistors/capacitor and pot should i use?? Thanks!

I extremely appreciate your wizdom, this information helped me a lot, thank you

Excellent video!!!! Thank you for your detail. Do you have a video or can you provide info on how to invert the output frequency? I want to be able to select between the non - inverted and the inverted output signal...... Thank you.

Hey I'm a student and am doing an assignment on 555-timer chips and producing musical notes using them for year 11 physics and I was just wondering where you got the graph you used for the Capacitance and Resistance vs Frequency? Also thank you this video really helped me put together my own circuit.

Great video with great explanations,thanks

Great stuff! Very enlightening indeed! Thank you very much!

thanks most people do a bad job of explaining.Dub siren build in progress.

Thanks. Well explained.

How would I go about controlling the pitch with a small amount of variable voltage? Like the voltage used to drive a meter on a Geiger counter.

Oh man, the wiring made my inner neat freak cry; but I guess that is a con of watching Ben eater’s vids lol

Thanks a ton man, this was great √

Thanks, it is clearly explained. Pls let me know the multimeter to measure the frequency your are using from RadioShack

It really works thnx!!

First few words made me worry Duke Nukem made an electronics tutorial

Dorian, Im actually looking to just generate a single triggered beep noise around 490hz. But Id like something clean - which would be more of a sine wave that this square wave from the 555 - any recommendations for a quick and easy circuit? Thanks!

Thank you very much

thanks for the video; what i want to do is have two of these circuits playing at the same time through just one speaker --- how can i safely connect the two so they still generate sound individually but have only one output?

Hi! I've been trying for so long to build a circuit that uses a 555 to make a Led flash and use a potentiometer to regulate the blink of the Led. The thing is I can't make it work properly, I'm using the exact same circuit as you only I replace the 10k resistor for a 10k pot and in the pin 3 I use a 1k resistor and a Led. Which you think it could be the problem? Maybe the value of the capacitor? I'm using a 100 uF. Thanks!

very nicely done - thanks.

one more question: i have a pot that ranges from 0 to 20M. which values of resistor and transistor should i use?? thank you!!

I built a morse code oscillator using a 555 timer. I would like to amplify the output from pin 3 going to a speaker and would also like to add a head phone jack on the output. Do you have any ideas for me ? Thanks in advance

"Thank You", thank you very much....

hey ! excellent work you have done ! i wanna produce a frequency of 23,000 Hz and i have calculated my resistors and capacitor.there is one problem ..how much power speaker i should use to produce sound ?

very good

Wow, nice informative video!! by the way, I'm wondering how can I use it to make a cell-phone jammer?

Hi, really helpful, quick question though, what determines the min and max frequency of the output ?(my electronics knowledge is a bit rusty)

Really lovely video, very helpful, correct me, if I`m wrong, but this can also be used as a pulsed audio generator as well, right? Also, is it possible to connect an audio input to this bad boy?

great circuit man. and also short and good explanation. can you tell me how to make short beeps or pulses to be random separated in time? i want the pulses to be 10 or 20 miliseconds long and to happen from 2 to 20 pulses or beeps per second. is that possible? most important i want the pulses to be short and Random... thank you

Hi Dorian! I'm trying to make a little synthesizer with a 555 timer, and your video is perfect for me. I have only one question: what is the value of the potentiometer? Thank you! ;-)

I would like to build this circuit to go from 1 hrz to 500,000 hrz and run to different hrz to 2 different speakers and be an on off signal. Can it be done with one 555 ic?

Wonderful video! I had just two questions. The first being how many mh does this thing use? And second, I'm trying to make a "Binatural" sound wave generator. Is it possible for you to make a video on a very simple sinewave Generator??

Thanks will let you know how it works.

Thank you.

Thank you so much for your explanation! I am using this circuit for a project, but the signal is much quieter that yours. Is there a resistor I could change to make the signal stronger?

Ok so I'm trying to build a sound sensor that when you hit a drum it flashes a light. I wand to use Battery Power 10/20/30/40 LED Bulbs Fairy Xmas Party String Lights Decoration found on ebay. how could I do that. it has to be done for 12 drums and under $50 the lights alone cost $17.16 for 12 of them.

Just like how the Grand Gallery works in the Great Pyramid.

great video ! thank you

NE555P 16HT13A vs NE555P 91M DN1519G4. For me the "16HT13A" works better! Who knows the difference? Maybe I'm just using it wrongly or "DN1519G4" isn't supposed to use in high freqiencies (as the osc-r).

What kind of speaker did you use ? Can you use a buzzer?

Could you show how to build a IC1 simple ignitor by Bruce Simpson this is a very similar version of your component you have here

Hi Dorian, I am planning to make a hi pitch sound device to trace conduit. Any chance you have a drawing and part s available. My plan is to attach device speaker to one end of the conduit and sound should travel to other end. Sound like smoke alarm. ThanksDejan

tnx! great data.

does this circuit work for controlling a switch in a dc/dc buck converter ?

building a dual oscillator synthesizer based on two of these circuits in parallel. Its going well! only question I have is what rating is that pot you are using? 10k ohms?

Well I have been doing some testing with your circuit and found if I use a car radio size speaker it blows out the 555 time IC using my power supply. I did get 24khz on my frequency counter. Would like to get it to 100khz for testing. Any ideas how to do that?

can you kindly help me on the applications of this type of circuit.....or the use or purpose of it

can you make a decoder that reads the tone and activate a relay? I want to use this to program an animatronic by sending the signal to the cassette on one track and use the other track for music, on the track with the signal i want to put a tone generator on it to detect the signal and activate a relay, a tone will be sent to the input jack of the cassette recorder and a signal reader on the output

Thank You so much.

please show how to do connections while performing a practical of op amp as inverting amplifer with AC supply nd using CRO . HOW TO DO CONNECTIONS IN BREADBOARD AND WITH CRO AND FUNCTION GENERATOR ? PLEASE SHOW AS SOON AS POSSIBLE THANKU

Can you turn it down to 7.8Hz and what the sound Looks like?

Hi will you help me build the 30-40 hertz generator on the breadboard ?

Hi, if i want to produce a 880 Hz frequency which values i should look for in my resistors and capacitor ?

Sir please show the connection of opamp wit cro and function generator as a inverting amplifier

"Good", very good 😉

Hi there I have a question. What's the potentiometer resistance?

Thanks, nice