LED Strobe Light Circuit with NE555 Tutorial

Рет қаралды 12,970

5 жыл бұрын

Hi, today we see how a Strobe Light works.
For this project I decided to use the famous NE555 IC..
The basic operation of the circuit is: The 555 timer IC works as an astable multivibrator and generates a frequency, the square wave output drives the three LEDs. The flashing frequency is adjust by a 47uF electrolytic capacitor and a 10K potentiometer is used to adjust the *Duty Cycle. The output signal from 555 is brought directly to the LEDs, which must be connected in parallel, each with its own resistance. Another very important feature is the maximum output current of the NE555 (200mA) this makes us understand that we can add more than three LEDs, because each LED absorbs about 20mA.. but do not put more than 10 LEDs otherwise you risk to damaging the NE555 IC.
* What is Duty Cycle in NE555 timer?
A duty cycle or power cycle is the fraction of one period in which a signal or system is active. Duty cycle is commonly expressed as a percentage or a ratio.
The mark to space ratio of a square wave or pulse oscillator is often referred to as the Duty Cycle. This is a more useful term when the purpose of an output wave is to drive some device such as a motor. Changing the duty cycle changes the average DC voltage or DC current level of the output, and hence the power supplied to control the speed of the motor. This is also important in driving output devices such as lamps, heaters and many others. The Duty Cycle is a term that describes the percentage of each cycle taken up by the active or high period.
■ Components:
- 1x NE555 Timer IC
- 3x White LEDs
- 1x Red LED
- 3x 330 Resestors
- 2x 1K Resistors
- 1x 100 Resistor
- 1x 10K Trimmer/Potentiometer
- 1x 1N4148 Diode
- 1x 47uF@25V Electrolytic Capacitor
- 1x 10nF Polyester Capacitor
- Power at 9V DC
- Current consumption: 50mAh
- Electric diagram at 3:00
- NE555 Datasheet: www.ti.com/product/NE555
■ Do you want to Make a PCB?
Look this: • Vu-Meter 20 LEDs LM391...
► My Electronics Creations: goo.gl/k1PN4A
► More videos: / stefano91ste
WARNING: The following video contains flashing lights imagery that may cause discomfort and/or seizures for those have photosensitive epilepsy.
WARNING: This video is only for demonstration. I don't take any responsibility for damage to things, people and animals.
#ElectronicProjects #NE555 #StrobeLight

Пікірлер: 48

@Kostanj42 5 жыл бұрын

i love how you put power indicator leds in every circuit..

@Stefano91ste 5 жыл бұрын

i love leds :D

@AteuCu 5 жыл бұрын

Thank you!

@ginyodquinoa7756 3 жыл бұрын

your circuit is excellent. this is what i am looking for a year on youtube. i love it! I subscribed because of this work. Good job!

@Stefano91ste 3 жыл бұрын

Hello :) Thanks for appreciating my work on youtube!

@Lakeman-fb6vl Жыл бұрын

Very well illustrated. Just what I’ve been looking for. Thank you.

@Stefano91ste Жыл бұрын

Thank you:)

@Chipoelectrico 5 жыл бұрын

Muchas gracias por el circuito, tu tiempo y conocimientos.

@Stefano91ste 5 жыл бұрын

Gracias :)

@afonsoliveira6542 3 жыл бұрын

Ótimo circuito 👍😁👍

@Stefano91ste 3 жыл бұрын

Gracias =)

@electroniquepassion 5 жыл бұрын

Nice

@Stefano91ste 5 жыл бұрын

Thank you :)

@mamediarralo4283 2 жыл бұрын

What assembly do you use to drive 7 sst uv leds in series with the maximum current in a les of 1.5A and 3.63 v

@tomaszolejniczak1753 5 жыл бұрын

👍👍👍👍

@KJGDIY 5 жыл бұрын

Good , bro, already like and subscribe to your channel.👍👍👍👍👍👍👍👍

@steve-o6413 5 жыл бұрын

👍

@Stefano91ste 5 жыл бұрын

Thank you!

@LiamDillon 3 жыл бұрын

What capacitor size would I need to make this flash once a second? Great tutorial.

@Stefano91ste 3 жыл бұрын

Hi, a 10uF electrolytic capacitor and a 10nF capacitor are the ones I would use.. so i did with a 1Hz generator with NE555

@rowintv7622 4 жыл бұрын

can i use 100nF = 0.1uF polyester capacitor as alternative or what is your recommend to use as alternative? thank you for response

@Stefano91ste 4 жыл бұрын

Hi, to obtain the same lighting effect of my video it is important to respect the values of the scheme I have provided

@Jaki3007 5 жыл бұрын

I have 10W high powered LED that forward current is 1000mA. Does that mean i can't use it for this project?

@Stefano91ste 5 жыл бұрын

No, as I explain in the video at 1:30 the maximum output current of the NE555 is 200mA.. To do what you ask you should modify the circuit by adding transistors capable of driving those LEDs

@express375 4 жыл бұрын

What a great tutorial. Would this work to control a solenoid at the same speeds?

@Stefano91ste 4 жыл бұрын

Thank you! - No, if the solenoid would require more than 200mAh (maximum capacity of the NE555)

@express375 4 жыл бұрын

@@Stefano91ste That's so helpful thanks :) Nowing what circuit will work is proving impossible, I'll have to have one made somehow?

@BRUXXUS 4 жыл бұрын

@@Stefano91ste Shouldn't this be able to switch a transistor that would be capable of turning on and off a solenoid? Just replace the LEDs in the circuit with a transistor?

@Stefano91ste 4 жыл бұрын

Yes, but only if the solenoid does not require more than 200mA - the NE555 on PIN 3 (output) cannot provide more than 200mA =)

@express375 4 жыл бұрын

@@Stefano91ste thanks bro, it was all to complex for my brain so had an all in one circuit designed and made. Cheers, I learnt enough to know the design would work.

@dominikdomi7829 5 жыл бұрын

Hey Stefano, I've seen people connecting 1W LEDs to a NE555 timer but that LED has forward current about 350mA. How is that possible?

@Stefano91ste 5 жыл бұрын

Hi, Surely they will have added a power transistor between the NE555 and the 1W LED. The maximum output current of a NE555 is 200mA

@udhi_gn3893 4 жыл бұрын

It's done by using a transistor (bc547 or equivalent) as a switch/relay, controlled by the output of the 555

@perfectworldpat7053 Жыл бұрын

Is it possible to have a frequency around 350/minute?

@Stefano91ste Жыл бұрын

Yes if the circuit produces a frequency of 350 Hz

@HanZie82 2 жыл бұрын

ugh if i only knew howto replace that pot with a resistor or two... :( Thanks for the video tho!

@Stefano91ste 2 жыл бұрын

Hi. if you want you can replace it with a resistor, but you will no longer be able to adjust the frequency of the flashing

@DIYLabs 5 жыл бұрын

Great channel, lets support each other

@Stefano91ste 5 жыл бұрын

Thank you so much! Comments like this make me very happy and motivate me to keep doing a great work :)

@rowintv7622 4 жыл бұрын

Is it astable or monostable? Thanks for the answer

@Stefano91ste 4 жыл бұрын

Hi, is an astable multivibrator, I explained it in the video at 0:48 and in the description :)

@rowintv7622 4 жыл бұрын

How to get the time delay of this circuit? or time of led every flashing in every second Thank you ☺️

@Stefano91ste 4 жыл бұрын

You mean the flashing frequency of the LEDs? the only way to get an accurate measurement is to measure the output of the ne555 with an oscilloscope

@Kampfall Жыл бұрын

Hi, how it looks in gerber?

@Stefano91ste Жыл бұрын

Hi, here the gerber: kzfaq.info/get/bejne/mLJ5hNOAnq6tm40.html

@Kampfall Жыл бұрын

@@Stefano91ste thank you, I really aperciate your work, keep it up :)

@Aj_18____ 4 жыл бұрын

how to make the LEDs blink twice a second???

@Stefano91ste 4 жыл бұрын

Hi, you should use a NE555 set to generate a frequency of 2Hz, in the past I have made videos about it.