Watched 2 or 3 videos before and didn't underatand a single crap about the IC. But this one video here, really hit the nail. You did a great job at explaining how to wire it, thanks a lot man.
Now seriously, I think I had my share of teachers throughout my rather short life. 33yrs, pilot. But you Sir, your calm, your voice, the sense of such a nice person that I got from you, the knowledge you share... I could just seat on a table right next to you for an entire day!!! Only with a notebook taking notes. Just something about you. Thank you!!!
‘Keep it Simple Stupid’ has to be one of the most brilliant pieces of advice that every educator, professional engineer, technologist, designer, and hobbyist should always follow in all of their endeavours. A genius makes simple work out of complex problems, and idiot tries to make everything as complex as possible in order to try to look as smart as possible.
I love the videos please keep them coming. I have more electronic components in my garage than the law should allow. Somethings are hard to understand but you just simplified my life thank you, you are a good teacher.
I watched this a few weeks back. Today, I did my first breadboarding since then. I applied these principles and it went so much easier than some of my previous attempts. Thanks for the teaching the things that others assume to be known.
Very nicely done! I'm sure the other way with extra components exists for a reason, but this will help people get into timer circuits more easily when they are just starting out.
Thank you so much for this video! I've been trying to figure out how to build something like this for a while and I had no idea it could be so simple and inexpensive!
Thank you for a brilliant channel, both old and new videos are just great. The '7Ps' and the "keep it simple stupid" were just fantastic. Thanks again.
hi Paul, i`m Steve and a total newbie to electronics, i know about some of the components, love watching your vids, funny in a good way sometimes but very very helpful, well done please keep going, thank you..
Thank you very much for your video. I do need the KISS method, and have to learn 555 today. After viewing your presentation I will assemble an air pump. Thank you again. Stay safe and be well.
I have a favorite 50% duty cycle 555 circuit with just two parts parts! It will ALWAYS oscillate at 50% D.C. and it has 100% INDEPENDENTLY adjustable frequency and amplitude. From the standard monostable, pull out the resistor at pin 7 and the cap at pin 5 and toss 'em! Now connect pins 2 and 6 to output pin 3! * ONE POT * ONE CAP Adjust the frequency with the pot and the amplitude with Vcc BTW: the formula for the frequency is given as: 1/1.39RC ps The 1.39 comes from 2Ln(2) THANKS FOR THE GREAT VIDEO!!!
Great job! I like it: a just barely good enough circuit. I'm working with these pesky little 555's in my Electronics 101 course, and practical tips are priceless. What I did on my bboard is to wire both rails with Vcc. In your example, I would've then, instead of routing a 2cm wire OVER the chip between pins 4 and 8, instead use a tiny jumper from the hot rail to pin 4.
Great video. My oscilloscope should be delivered today. Thanks for sharing. Everything about electronics is so fascinating to learn. Thank you much for sharing your knowledge. Artie 😊😊😊
i like how you executed the video, but there is a but, i am going to be making a 555 circuit soon for the first time and im going to use 2 resistors. sadly because i never made this circuit before, and because you used the adjustable resistor in place of r1 and r2, i still dont know how to make the circuit. it kinda sucks cause other than that you would of helped me learn how to build the circuit. thanks for the upload, i still gave a thumbs up.
Dear Sir, Great video, I am a student of electronics and your videos are easy to understand and the circuits are very interesting to watch, Keep up the good work, and have a pleasent day.....
Hi, I have made a monostable multivibrator using 555NE timer ic. What observing is it is getting triggered automatically when some electrical appliances are being switched on or off in the house. So is the 555NE prone to pickup noise or problem is something else. Can you think about it plz if you get time.
Yoooooo man big thank you . Been wrecking my brain for a few days as to how to use 555 timer in a PWM for a 5v motor . Any suggestions on cap size and to add in a mosfet to protect the 555 timer. ?
This was great. I was experimenting with a version from my old Radio Shack Engineer's Handbook, by Forest Mimms, and not getting favorable results. I have used the "academic" version, but I was amazed to be able to build this minimalist version, and get precise control over the frequency. With R1 & R2 , being equal I have control over the duty cycle aswell. I also liked the reference to Steve Woznicak. Job's often gets so much of the credit for Apples success, but Woz was the Engineer.
@@learnelectronics I really enjoy your presentations. I am in my final year as a student of electrical engineering, and your videos help me to get back to in tune with why I chose this path. The passion for experimentation.
Can anyone help me on this? I try this setup with the potentiometer between Vcc, discharge, and threshold, but what I see on my logic analyzer is that the capacitor never discharges because the Discharge breadboard row is in series with Vcc, which is the right side of the potentiometer. So my output pin is low, but discharging never occurs
Use the frequency formula to determine what resistors to use depending on your preferred output. Put them in place of the potentiometer, with one lead of each resistor on the pin connected to the pin in place of the wiper. If you want to see a drawing of your circuit, look at the schematic at the beginning of the video that he seems the find so complex and confusing. He did exactly what was on the schematic except he eliminated the output indicator led portion. Other than that, he replaced the two timing resistors with the potentiometer and wants gullible people to think that he's a genius.
Excellent video. My question is if it is easy to make a circuit that automatically compensates for voltage drop. Say you have a capacitor charged to 7 volts and your target output voltage is 5 volts. When the capacitor discharges, the voltage drops - is it possible to keep a steady voltage from 7 volts to 5 volts at the output? The output being constant 5 volts. The circuit would have to adjust the duty cycle in relation with the capacitor voltage.
Dear Mr. learn, the first minute and twenty two seconds were all I needed to subscribe. Tired of wasting time sifting through un-endless blogs of scientific tech gurus and their teachers condescending people trying to self teach . Most usually end up telling you just how impossible the task is and that rummaging through 15- 20 year old electronic trash for pieces is pointless and a waist of time, and the best way is just to go drop 30 to 50 dollars at a store. Only thing worse is gamers getting all bent out of shape when someone asks a question that reveals they have a pirated version, so they get all huffy about it since they spent 40 bucks on a 8 year old game.
hey my friend I need to make a square signal that have not any small changes in frequency or pulse width but ics like 555 timer can not be like that and have small changes is there any way???
Great video of how to make an Astable circuit. Can you do this for the Monostable circuit too? I would like to build a timer which cuts off power after a few seconds after a button has been pushed to save some energy for long time dash buttons built out of ESP8266 or ESP8285 and not using the sleep mode.
Excellent tutorial. I have a question for you. we have a pot adjusting the duty cycle.... I'd like to keep that and add a pot to adjust the speed somehow. Is this possible?
duckduckgo.com/?q=trimmer+capacitor&iar=images&iax=images&ia=images They is touchy though esp. in RF so use a ceramic screwdriver to deal with them. If they worked fine without, then that is good. duckduckgo.com/?q=ceramic+screwdriver&iax=images&ia=images
Hello, awesome video. really explained and helped me understand. but one thing i didnt quite get was the resistance values in the frequency equation. were those the trimmer? sorry if im asking dumb questions, im relatively new at electronics.
That was what he was explaining. You can set the pulse repetition rate (frequency) with the capacitor, and the dwell (% of difference between on time and off time) with the potentiometer. He indicated how simple it would be to have relays change between one component value or another. I will control a throttle with a servo for a HD RC aicraft/heli. It needs two speeds, idle and 2500 rpm. One 555 timer kit plus alternate components, and a double throw relay to switch between alternate values. Signal triggers relay and servo goes to work. Signal stops and servo returns to home position, no load.
What IDE do you use. Like I have said before I’m new to this so I’m trying to get correct info and direction from individuals like you and your group for guidance. Anything you can recommend is greatly appreciated. Thanks again your videos are excellent. Artie 😊😊😊
Hey does this configuration produce a pure square wave? And I tried using it like the buck convert video you have and the input was 8 volt and the output was from 0 to 4 volt can you guess what I did wrong? Thank you
learnelectronics thank you for replying but in your video you put 12in and got range from 6v to 12v That is 50%-100% duty cycle but I got 0%-50% duty cycle which is weird. I used 104 capacitor in the 555 and 220uF in the buck circuit
LOL, You just made the 555 a pile more friendly to me .. Thank You.
Welcome!
Am sure the 555 was out in early 70s...
I guess it's quite randomly asking but do anybody know a good website to stream new tv shows online ?
@@martineric6894 Filmlicious
Watched 2 or 3 videos before and didn't underatand a single crap about the IC. But this one video here, really hit the nail. You did a great job at explaining how to wire it, thanks a lot man.
Thanks
Now seriously, I think I had my share of teachers throughout my rather short life. 33yrs, pilot. But you Sir, your calm, your voice, the sense of such a nice person that I got from you, the knowledge you share... I could just seat on a table right next to you for an entire day!!! Only with a notebook taking notes. Just something about you. Thank you!!!
‘Keep it Simple Stupid’ has to be one of the most brilliant pieces of advice that every educator, professional engineer, technologist, designer, and hobbyist should always follow in all of their endeavours. A genius makes simple work out of complex problems, and idiot tries to make everything as complex as possible in order to try to look as smart as possible.
I love the videos please keep them coming. I have more electronic components in my garage than the law should allow. Somethings are hard to understand but you just simplified my life thank you, you are a good teacher.
There should be a 555 fan club. Everyone loves it.
I agree
we need group chat that's the best way to learn more things share knowledge thanks❤
Umm, there is a club... Not only that, but there is also a career ...
I watched this a few weeks back. Today, I did my first breadboarding since then. I applied these principles and it went so much easier than some of my previous attempts. Thanks for the teaching the things that others assume to be known.
This is the best channel for learning electronics, Paul is such a cool guy
Thanks Paul really enjoying your videos. They make electronics much clearer than 28 years ago when I was an engineering student.
"This is good, it's academic, it's to much". Got me tuned in ❤
The best 555 explanation ever.
Very cool video with the 555 basics!
It's amazing how after 40+ years the 555 is STILL such a versatile IC
It's over 50 years now as of 2021
@@SoulStealy yeah I wasn't sure off the top of my head exactly how long, but I knew it was at least older than me 😂
Electronic components, not to mention the theory and formulas centuries old have hold up remarkably well.
That circuit is a bloody ripper, so neat and simple, big help for beginners. Good job on practical demo,, thank you Paul. Great video.
I love your videos man. I was having so much trouble actually getting output from the 555 before this.
Very nicely done! I'm sure the other way with extra components exists for a reason, but this will help people get into timer circuits more easily when they are just starting out.
Great tutorial and ingenious breadboard layout
Thank you so much for this video! I've been trying to figure out how to build something like this for a while and I had no idea it could be so simple and inexpensive!
Thank you for a brilliant channel, both old and new videos are just great. The '7Ps' and the "keep it simple stupid" were just fantastic. Thanks again.
Very welcome
hi Paul, i`m Steve and a total newbie to electronics, i know about some of the components, love watching your vids, funny in a good way sometimes but very very helpful, well done please keep going, thank you..
Absolutely brilliant, simple and practical explanation mate. Thanks heaps!
Thank you very much for your video. I do need the KISS method, and have to learn 555 today. After viewing your presentation I will assemble an air pump. Thank you again. Stay safe and be well.
I have a favorite 50% duty cycle 555 circuit with just two parts parts! It will ALWAYS oscillate at 50% D.C. and it has 100% INDEPENDENTLY adjustable frequency and amplitude.
From the standard monostable, pull out the resistor at pin 7 and the cap at pin 5 and toss 'em! Now connect pins 2 and 6 to output pin 3!
* ONE POT
* ONE CAP
Adjust the frequency with the pot and the amplitude with Vcc
BTW: the formula for the frequency is given as: 1/1.39RC
ps
The 1.39 comes from 2Ln(2)
THANKS FOR THE GREAT VIDEO!!!
Sorry, I meant "ASTABLE"
Perfect...exactly what i was looking for. Thanks for sharing!
Great video, you just made it easy and fun to set up my very first 555 timer. THANKS A TON!!!!
Great job!
I like it: a just barely good enough circuit. I'm working with these pesky little 555's in my Electronics 101 course, and practical tips are priceless.
What I did on my bboard is to wire both rails with Vcc.
In your example, I would've then, instead of routing a 2cm wire OVER the chip between pins 4 and 8, instead use a tiny jumper from the hot rail to pin 4.
Thanks for sharing your work !
Great video. My oscilloscope should be delivered today. Thanks for sharing. Everything about electronics is so fascinating to learn. Thank you much for sharing your knowledge. Artie 😊😊😊
Excellent 555 lesson. Thank you for sharing.
SORRY I AM FRENCH. SO MY ENGLISH...... POOR. IT IS THE BEST DEMO I NEVER SEEN ABOUT 555. THANK YOU.
I enjoyed it and learned something USEFUL!! Minimal bits to do the job. Gratitude!
Awesome! We even have the same o-scope!
Very straight forward - thanks
Love these simple circuits. Great for learners like me
Man, I love the 7-Ps... may start implementing that at work.
Feel free
Привет порой не знаю как быть етих ответ
i like how you executed the video, but there is a but, i am going to be making a 555 circuit soon for the first time and im going to use 2 resistors. sadly because i never made this circuit before, and because you used the adjustable resistor in place of r1 and r2, i still dont know how to make the circuit. it kinda sucks cause other than that you would of helped me learn how to build the circuit. thanks for the upload, i still gave a thumbs up.
Dear Sir, Great video, I am a student of electronics and your videos are easy to understand and the circuits are very interesting to watch, Keep up the good work, and have a pleasent day.....
Thank you
Thank you for sharing ic 555 application
Thanks - that is what I needed- just a simple explanation, not some MIT bint going off on comparators and shite that go beyond me!
Very nice detail video. Thanks for sharing.
So simple I got it to work on the first try thax man!
Nice video! Thanks for teaching
nice explanation. Thank you for making the vid and sharing.
Tried various circuits. This was the first one to work!
Very helpful video, thank you!
Hi, I have made a monostable multivibrator using 555NE timer ic. What observing is it is getting triggered automatically when some electrical appliances are being switched on or off in the house. So is the 555NE prone to pickup noise or problem is something else. Can you think about it plz if you get time.
Good refresh. Thank you sir
you are the best mate thank you.
you put much love for what you are doing and thats great
The first chip I ever used while I was still an apprentice (late 70's)! Like me still going strong(ish)!
+gartmorn nice!
Thou art a clever buggart!
But who are the 40+ could not's who thumbs down?! 🙄
nice and simple, thanks
wooked perfectly, thanks
Thank you. I think I will try this.
Yoooooo man big thank you . Been wrecking my brain for a few days as to how to use 555 timer in a PWM for a 5v motor . Any suggestions on cap size and to add in a mosfet to protect the 555 timer. ?
This was great. I was experimenting with a version from my old Radio Shack Engineer's Handbook, by Forest Mimms, and not getting favorable results. I have used the "academic" version, but I was amazed to be able to build this minimalist version, and get precise control over the frequency. With R1 & R2 , being equal I have control over the duty cycle aswell. I also liked the reference to Steve Woznicak. Job's often gets so much of the credit for Apples success, but Woz was the Engineer.
Woz is the man.
@@learnelectronics I really enjoy your presentations. I am in my final year as a student of electrical engineering, and your videos help me to get back to in tune with why I chose this path. The passion for experimentation.
This video has 555 likes, it should have 555 coments. I really like this tutorial, it helps me building this circuit every time. Thanks!
good stuff. hope you're doing well.
Great video! I have been wondering for along time how the Triple nickel works. thanks!
wouldnt it be possible for the potentiometer to have a voltage greater than 1/3 VCC which means it wont set the flip-flop?
Can anyone help me on this? I try this setup with the potentiometer between Vcc, discharge, and threshold, but what I see on my logic analyzer is that the capacitor never discharges because the Discharge breadboard row is in series with Vcc, which is the right side of the potentiometer. So my output pin is low, but discharging never occurs
Great! Exactly what I need
Is this possible with regular resistors? What value would I need and where do I connect them?
Use the frequency formula to determine what resistors to use depending on your preferred output. Put them in place of the potentiometer, with one lead of each resistor on the pin connected to the pin in place of the wiper. If you want to see a drawing of your circuit, look at the schematic at the beginning of the video that he seems the find so complex and confusing. He did exactly what was on the schematic except he eliminated the output indicator led portion. Other than that, he replaced the two timing resistors with the potentiometer and wants gullible people to think that he's a genius.
Thanks yo it really helped me
If I wanted to have a 30 second delay, what size resistor would I put in there? Or something close to it.
Excellent video. My question is if it is easy to make a circuit that automatically compensates for voltage drop. Say you have a capacitor charged to 7 volts and your target output voltage is 5 volts. When the capacitor discharges, the voltage drops - is it possible to keep a steady voltage from 7 volts to 5 volts at the output? The output being constant 5 volts. The circuit would have to adjust the duty cycle in relation with the capacitor voltage.
Without getting too deep into it, a big (2200 or 4700mA) cap parallel to the output would keep your voltage steady.
I love this guy! Amazing video
Thank you i understanded the fundamental of this, i have been able to make a buzzer with it.
hey Mr Paul, I found many spike voltage (on my oscop) - how to removing the spikes ? Thx in advance
can you switch the 20k potencometre to a simple resistor ?
You can, but you will need another resistor to complete the divider.
what is it use for? and how would i connect it up? ok! just found anther one of your videos "555 timer fun" hope this will answer the question.
In last minute of video you mentioned number 82. What do you mean by that?
im new in electronics but if i whant put pwm from Arduino vcc i can adjustment my frequency ???? many thanks u r best !
thank you so much....such a nice
Dear Mr. learn, the first minute and twenty two seconds were all I needed to subscribe. Tired of wasting time sifting through un-endless blogs of scientific tech gurus and their teachers condescending people trying to self teach . Most usually end up telling you just how impossible the task is and that rummaging through 15- 20 year old electronic trash for pieces is pointless and a waist of time, and the best way is just to go drop 30 to 50 dollars at a store.
Only thing worse is gamers getting all bent out of shape when someone asks a question that reveals they have a pirated version, so they get all huffy about it since they spent 40 bucks on a 8 year old game.
Your stuff is Still good! (Noticed a lot of comments have aged) Thanks!
Tip: put the speed of the video on 1.25X if you are in a hurry. Good video thx👍🏻
hey my friend I need to make a square signal that have not any small changes in frequency or pulse width but ics like 555 timer can not be like that and have small changes is there any way???
Can you post the buylist on how I can get one?
thank you very good tutorial!!!!!!!!!!!!
Great video of how to make an Astable circuit. Can you do this for the Monostable circuit too? I would like to build a timer which cuts off power after a few seconds after a button has been pushed to save some energy for long time dash buttons built out of ESP8266 or ESP8285 and not using the sleep mode.
Just found it in one of your videos th-cam.com/video/1wHNaVPn2hw/w-d-xo.html :)
+c0r0y I did I video on this.
Excellent tutorial. I have a question for you. we have a pot adjusting the duty cycle.... I'd like to keep that and add a pot to adjust the speed somehow. Is this possible?
GORF I’m sure you could with a variable capacitor. Cheap on amazon
@@mikatomik5532 Yes but those are not usually large in range nor are they usually large in value...but I did think about that.
how can i trigger 555ic using lm358 in monostable mode
what value is the capacitor
Great thanks for the simplification! Is there such a thing as a variable capacitor? Then u can adj freq and duty cycle.
+Michael Padovani Yes there are variable caps, used in tuning radios
duckduckgo.com/?q=trimmer+capacitor&iar=images&iax=images&ia=images
They is touchy though esp. in RF so use a ceramic screwdriver to deal with them.
If they worked fine without, then that is good.
duckduckgo.com/?q=ceramic+screwdriver&iax=images&ia=images
Michael Padovani i think you must watch this too if you like this circuit
th-cam.com/video/caUHiHzswBU/w-d-xo.html
Hello, awesome video. really explained and helped me understand. but one thing i didnt quite get was the resistance values in the frequency equation. were those the trimmer?
sorry if im asking dumb questions, im relatively new at electronics.
Yes, I use the trimmer as the two resistors. Less components is always better.
learnelectronics wow. Quick reply. Awesome thanks
Bro... you make it so easy for me... Love your technic... kiss !!! ahahah Keep making good video !!
I literally love you
is it possible to adjust the length of the crest and the through of that signal?
I want to try to make the through longer than the crest
That was what he was explaining. You can set the pulse repetition rate (frequency) with the capacitor, and the dwell (% of difference between on time and off time) with the potentiometer. He indicated how simple it would be to have relays change between one component value or another. I will control a throttle with a servo for a HD RC aicraft/heli. It needs two speeds, idle and 2500 rpm. One 555 timer kit plus alternate components, and a double throw relay to switch between alternate values. Signal triggers relay and servo goes to work. Signal stops and servo returns to home position, no load.
Loved the video man! Just wondering where to connect the output (say a motor or led) to the breadboard??
Pin 3
@@learnelectronics Thanks, I should have realised that from the video🤦😂
I though frequency is f= 1.44/(R1+2R2)C1. Is there a reason the 2 was left out or am I wrong
You are not wrong. Thanks for pointing it out.
Thank you.
Useful vid...thanks
+J. Clowers Welcome
Not quite sure what I’m looking at…BUT I LIKE IT!!!
What IDE do you use. Like I have said before I’m new to this so I’m trying to get correct info and direction from individuals like you and your group for guidance. Anything you can recommend is greatly appreciated. Thanks again your videos are excellent. Artie 😊😊😊
IDE, I just use the latest from Arduino
learnelectronics thank you for getting back to me so promptly much appreciated. 😊😊😊.
What are the resistances of all of the resistors? I couldn't get mine to work :(
What is the power supply volts?
You should watch the video. Everything you asked is in it.
....can I use it to produce high voltage connecting the primary of the trasformer to the out pout?????.....
likely so, however i would recommend using transistors connected to an hv power supply
Hey does this configuration produce a pure square wave? And I tried using it like the buck convert video you have and the input was 8 volt and the output was from 0 to 4 volt can you guess what I did wrong? Thank you
Yes, square wave only. If you did a buck converter and you got 4V from 8V it worked. If you want more than 8V you would need a boost converter.
learnelectronics thank you for replying but in your video you put 12in and got range from 6v to 12v That is 50%-100% duty cycle but I got 0%-50% duty cycle which is weird. I used 104 capacitor in the 555 and 220uF in the buck circuit
Hi, is it absolutely necessary to connect pin 4 to Vcc? Thank you!
No, but your circuit will reset unexpectedly.
can i drive an ignition coil with a mosfet switching off pin 3? I waant to build an ignition coil tester with a 555.
If your FET is rated high enough, absolutely.
Realy Nice !!!