These are a whole bunch of things to make with the 555 timer IC with a note for each picture.
I do not take credit for these schematics, they were made by Collin Mitchel.

As you would probably think it took me a very long time to make this but it was night and i was wanting to waste some time so i hope you like it!

I have descriptions for each and every picture so feel free to ask questions!
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pwamutitu1 year ago
hallo i need to make an led signboard with as many led's as possible. probably 500. how can i drive the leds using 555 and 4017 without compromising on current. what would be the ideal voltage. reply

Oh man, if you want to drive MORE than 500 LEDs by 555 and 4017, you nedd REALLY MUCH soldering and contruction. Use MCU, its easier and you can take it what you want. But you probably will need multiplexer. Just use think called google.

asamudrala10 months ago
Hello Guys, I am facing difficulty in finding good microphone for sound operated robot with 555, I purchased many mic. phones but its range is very. How could I amplify n improve its range? please suggest me the best one.

get a wireless mic and provide a receiver to the robot.

jde zila8 months ago

please i need full project work on TV signal booster. my phone number is 233241386559. electronic mail is please i need this badly

ThatCatMan1 year ago
I would like the see a full page on that metal detector
colin552 years ago
All these circuits were drawn by me: COLIN MITCHELL
See my website: talking
and 555 circuit eBook with descriptions of the circuits
MROHM colin551 year ago
Thanks Colin,,, Awesome designs you have here!!!! Unfortunately the Designer of the 555 chip Hans Camerzind passed away Recently,,His Design of The 555 chip made it a Household Name!!! The 555 is still one of the most widely used I.C.chips in the history of I.C. electronics!!! Actually with all the circuits we have here I Don't know which one I want to Breadboard Here!!!
Colin, I recognized your drawings immediately and wanted to point out this author's source from which the drawings were shamelessly copied, then saw that you already did, and it seems that nobody cares... the dark side of open sharing I guess... at least the link you gave will expose your generously informative website to some new readers.
Jimmy Proton (author)  georgelstuart1 year ago
Actually I emailed him and asked permission to use these schematics which he allowed.
mgriff colin551 year ago
Mr. Colin55
My name is Mike
I have a question or a favor for you maybe you can help me. Thanks in Advance
I am in the process of making a board game called shut the box it's a dice board game. I'm sure you have heard of it for my daughter. Instead of flipping wooden numbers I would like to use some type of ic numbers 1-9 that are fixed so all I have to do is push a button coresponing to the specific number to turn it on or off if you look at google images under shut the box to get a better idea of what im talking about. any help would be greatly appreciated you can email me at
thank you so much
Sir i need some helpful material for music box. Kindly provide how it works?? waiting for ur reply.
billbillt1 year ago
merva1 year ago
hi can i have the working explanation of door bell circuit for back door and front door plz i really need it i wanna understand how the Ic is working
buike1 year ago
pls can i geta circuit diagram for a 5watts wailing siren
jensenr301 year ago
wow! this is one 555 timer instructable that I can really get behind!
I find that most of them are way too many describing how to do the same thing. but you have really done a neat thing putting all of these different projects together!

I like it.
Lucky7x71 year ago
You have sensitive touch switch twice... : ) only because you asked
~CableGuy1 year ago
man just,... W.O.W!, GREAT! (+ 100 other positive words)
EA ready2 years ago
I need help with coming up with a circuit or finding one that will operate a remote control car to 22 feet then cut off. If anyone have any ideas or can point me in the right direction it will be appreciated!!
aesquivel3 years ago
Hi there, for the "Stun Gun", can I replace the 10nF capacitors for 100nF? these are the only ones I can get at 400V, also, can I replace the BD679 darlington for a TIP122?
Jimmy Proton (author)  aesquivel3 years ago
Im not sure the 100nF capacitors will make much of a difference and yeah that should work, it seems to be the same things but with higher ratings.
could you use 10nf with 500v?
yes why not!
azharz2 years ago
Wow nice projects to do with a 555 timer IC
EdDruino2 years ago
please help! [nub]
at the tv remote Jammer project, the [5r6] is a 6 ohm resistor and 470r - 470 ohm R? and please...which is the transistor's code?
Jimmy Proton (author)  EdDruino2 years ago
The R just stands for resistance, so the number next to it is ohms. And there is no specific code for the transistor, I assume that you could just use any general purpose NPN transistor.
thnx for the quick reply!
Chu Guk2 years ago
Hey, awesome circuits! I got this pack of 3 555's and am looking for something cool to do with them.
By the way, do the "Police lights" with the two 555's act different from the one with a 555 and a 4017? I mean, do the lights flash any different? Because from what I know the one with the 4017 flashes fast 3 times on each side, back and forth. I have 3 555's, so if the circuit flashes the same, I'd like to use that one.
Thanks! Awesome instructable. Simple, but useful :D
nprikkel2 years ago
Does anyone have an eagle file for the stun gun? this would be very helpful as i am new to schematic design
Collin Mitchell is the author.
hubi3 years ago
Your 555 Amlifier is cool, it is kind of Class D PWM Amlifier, I think.
Yu could much better results if you use a second 555 as clock generator and feed the trigger of your amp with it. More improvement would be to charge the cap via costant current to get the ramp of the sawtooth more linear.
I have done all of this, and fed a flyback via Mosfet with this, gives a cool plasma tweeter.
This is true. Remember a lot of times as it sound that you are not new to this that with astale ckt using a mono stale 555 to triger it gives it a more stable Or accrate conrtole of the ckt. No disrepect you sound that you have exp 555 is a timer (not really a amp in 99% with applicatin goo old fastion electronics)
matstermind3 years ago
whats the first one do?
Jimmy Proton (author)  matstermind3 years ago
This circuit drives a 3x3x3 cube consisting of 27 white LEDs. The 4020 IC is a 14 stage binary counter and we have used 9 outputs. Each output drives 3 white LEDs in series and we have omitted a dropper resistor as the chip can only deliver a maximum of 15mA per output. The 4020 produces 512 different patterns before the sequence repeats and you have to build the project to see the effects it produces on the 3D cube.
I have built this circuit and I can not get it to work. Depending on the voltage I apply and the resistor I swap out I can get about five seconds of flashing on half of the cube and then it dies out and does nothing. Any ideas?
The capcitor is what stores the voltage.the resistor controlls how fast or slow it is released. Alway remember check all ground. Voltage take the least resistant to ground(eath neg - ) Alwaways double check your wiring . Even experience tech can get one wire come lose or miss something. Always remember the notch is the to or referance for the chip Check the diagram on the package or tech info on how chip I/O (inputsput/ Outsputs are located At notch or dot were pin 1 2 3 4 are and were they are located.
try a different type of 555 timer (TLC/NE instead of a SE). switching it helped for the touch plate circuit
Tried that already. Tried switching the cap, the voltage, the resistor, and switching around the wires. The most I can get out of it is one row to stay lit up and a few others to blink for a couple of seconds and then it dies out and does not start over. I left it on for 15 minutes just to see if it was running through a process and nothing happened.
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