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Tutorial - Arduino POV display TEXT, CLOCK

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Sorry for delayed video. Had a lot of work to do. This is a small tutorial where I show you how a POV works, how to get it synchronized and how to sue register control to fast switch some LEDs. You will also see how to use a Hall effect switch. All the codes and schematics are below.
This POV display could show both text/numbers or an analog clock.
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Text code: www.electronoob...
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Опубликовано:

27 авг 2024

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Комментарии : 114

@ELECTRONOOBS 6 лет назад

I hope that you enjoy this video. Support my workshop on Patreon: www.patreon.com/ELECTRONOOBS Visit my webpage here: www.electronoobs.com/ and leave your question here or on my Q&A page: www.electronoobs.com/eng_preguntas.php

@ELECTRONOOBS 6 лет назад

Harshal Selukar thank you. I'm so glad you say that. Keep up!

@marcus_w0 6 лет назад

Really your best video so far. You keep getting better and better. Thumbs up :)

@aamir99204 5 лет назад

Dc motor rpm??

@maxmack2150 3 года назад

A trick: you can watch series at flixzone. I've been using it for watching a lot of movies lately.

@kylofabian4579 3 года назад

@Max Mack yea, been watching on flixzone for months myself :D

@ChunkySteveo 6 лет назад

I think this is the first explanation of how the hall sensor, code and rotational maths all work together to make a POV display work, that actually makes sense! Great way to break down the "magic" of rotational POV displays into a simple example! Steve

@ELECTRONOOBS 6 лет назад

Thank you very much!

@MePeterNicholls Год назад

0:29 you answered my question immediately. ❤

@MauriceBierhuizen 3 года назад

Great stuff! Thanks for the inspiration. One addition; my hall sensor did not operate reliably with the 1k ohm pull up resistor, had to replace it with the more often advised 10k ohm pull up resistor to get it working.

@KuroEce 6 лет назад

That's the most detailed explanation for POV clocks I've found so far, and I can't recommend it enough for people who are trying to understand the "magic" behind POV displays. You just earned a new subscriber :D

@ELECTRONOOBS 6 лет назад

Thank you very much!

@SaliyaRuchiranga 6 лет назад

it's nice to see who's behind the camera :)

@seeker4430 3 года назад

You are awesome! the theory behind the POV display was something I was looking for but found nowhere else. This is exactly what I wanted. Thanks!

@shaunmichaelmedia6606 3 года назад

Props for having a go at the aftereffects grid effect! Not any easy one :)

@sokauo 6 лет назад

I've noticed you worked on the quality of the video, that seems much more professional, good job ! For a clock, is the noise not too disturbing?? That is the only problem of this kind of project using a spinig thing...

@ELECTRONOOBS 6 лет назад

Yes, the noise is VERY disturbing. Any way this is just an example for learning purpose. I guess with a few more days of design and better motors you caould build a very stable and silent propeller. Keep up!

@tamarathompson9418 6 лет назад

Electronoobs i think you mean to say "keep it up" based on the context, "it" being the good work or hard work but please correct me if i am wrong :).

@ELECTRONOOBS 6 лет назад

True!

@ufohunter3688 6 лет назад

Very nice project and workmanship in construction. I love my glue gun? You could also install a coil with the hall effect sensor. You would need a logic level n-channel mosfet and a couple of gate resistors. An extra Arduino pins is needed to drive the gate of the mosfet. Sort of like an inside-out Bedini school girl pulse motor. The external brushed DC motor and pulley are gone! I managed 2500rpm free-running with mine. I don't know if that's fast enough for POV or if the MCU can cope with the pulses. I don't see why not since Arduinos are used in closed loop servos with 1000 updates per second or more.

@jaigarg3990 6 лет назад

You are good in explaining stuff

@NabaTechWorld 6 лет назад

Nice Video with detailed information. Thank you.

@tamarathompson9418 6 лет назад

Love the video's mate . I just soak it all up like a sponge . And they give me things to make with the copious amount of electronic parts i order lol. . Cheers

@TrueIndianPatriotTIP 6 лет назад

your explanation is so lucid. thank you bro

@adamsucksatyt 4 года назад

I will use a 7200 RPM BLDC motor from a HDD, so I don't need the counter that counts down the rotations. And, since the motor spins at constant 60 rps, it will be rendered 60 times every second. And BLDC motors are synchronous motors, so it makes my life easier.

@mhzxtal922 5 лет назад

You project always outstanding than other people :)

@petermuller608 2 года назад

Love the motherboard wall!

@alexanderpoltzer8885 6 лет назад

Wow, you put alot of work into your videos! Thank you for the great explanation!

@makeforfun4768 5 лет назад

i also made a too slow speed rotating display my own self. your also so good

@fieroboom 3 года назад

You should put a coil in the other (non-sensor) end to grab a little bit of recharging power as it passes the magnet... Or, if you make the housing in a disc shape, you could build several coils into the edge to provide recharging power - possibly even eliminate the Arduino battery altogether if you do it right... 😁

@oiezhi461 6 лет назад

First time seeing one of your videos, you are amazing man, good job, thanks for sharing your ideas. One sub more. Greeting from México bro!!!

@ELECTRONOOBS 6 лет назад

Gracias. Saludos!

@proyectosledar 6 лет назад

Se lo mandaste a Dave? Que grande!!! abrazo

@ELECTRONOOBS 6 лет назад

Si :) Gracias!

@marios_ideas 4 года назад

Quick question. I want to do a variantion of this project and I am wondering which motor to buy to rotate the platform. Which RPM should I use?

@moghanarubenselvakumaran7073 3 года назад

what is the problem of the POV display

@b.g.bvoice1142 6 лет назад

we miss you

@pramod_Kumar.. 6 лет назад

Great video .. can you explain how GPS and compass work in drone and how we build arduino drone with GPS..

@SAHNI-um1jh 6 лет назад

Best project of your channel Keep it up

@EDENDOLEV007 8 месяцев назад

any ideas about how much rpm is required? and what is the black rubber to connect the motor to the thing?

@alejandrodisarno4492 5 лет назад

te quiero... no podes ser tan genio! saludos desde argentina

@speed_sable Год назад

This video is brilliant, many thanks it was really helpful!

@saadkarim6994 6 лет назад

Brilliant as always

@anthonyrickardii6198 10 месяцев назад

Pretty awesome! Question is a way to change patterns into shapes or like a skull design?

@risheekbharadwaj6387 6 лет назад

Hey man awesome tutorial as always. What's the rpm of the motor ,the specifications would help a lot

@petermuller608 2 года назад

Does your battery already include a discharge protection circuitry?

@radhey04ec 3 года назад

Nice..... But please also include how code works in each project series if possible...... Thanks

@behnamkiani3736 9 месяцев назад

thank you for informative video

@joelsoncdma 2 года назад

Hi, congratulations!..change the resistor of blue to 1k .

@reggyresurreccion3058 6 лет назад

Why don't you used a slip ring to supply power on your arduino board, so that you can take out side the battery on that rotating part? With that you can charge the battery without turning off the clock.

@risheekbharadwaj6387 6 лет назад

If you don't mind can you tell me what kind of DC motor you have used.

@dnacious238 4 года назад

Hey there, what motor did you end up using? I am trying to find the right motor for this project but I don't know what motor I should use. How much torque/load/rpm for example?

@millkymilkshake 5 лет назад

thanks dude this helped me make one! put my own little spin on it through B)

@daskasspatzle2396 6 лет назад

How about dimming the blue LED by using PWM or increase the resistor value?

@richardwilkinson179 6 лет назад

Really good video and well explained also no music! I can not understand why you get thumbs down, maybe people who do that should try producing their own video ;-)

@Isambardify 3 года назад

Would it be possible to spin in a second axis to get a sphere of display rather than just a flat image?

@pawarom74 Год назад

How to turn on blue LED clock perimeter

@sebastianbernal8897 2 года назад

Hey it looks great, could you tell me which DC motor u used? i could not find it in the part list

@next8226 6 лет назад

great i love it i will try to make one

@MariusHeier1 2 года назад

Dude you been doing Qazi color grading course?

@DIVYANGKATESIYA 6 лет назад

make the tutorial on Arduino programming series to better understand. keep making

@dracofloww 5 лет назад

I didn't understand how you make (for example for A) you need all leds on then one on the top and one in the midle on and then all on again, how do you do that?

@tapasmitra3535 3 года назад

One of the best tutorial in Pov Display ever Sir ,but I am little stuck I want to make the text part only 1>I want to know if in the text red & blue leds has been used or not ? 2>In the text ELECTRONOOBS all are in capital letters by video but in the code declaration part "int text_ok=0; int a[] = {126, 144, 144, 144, 126};"all is in small 3>After the first word in this case ELECTRONOOBS I wnat to clear the disolay for second text message is that possible ?4>In text display I can count 7 green leds am I correct ?but there are 8 leds ?Sir plz do help a little

@MrSeketa 3 года назад

Isn't your schematic a bit wrong? You connected anodes to the ground and cathodes to output pins. :)

@Rahulmanna95 6 лет назад

can we substitute the hall sensor with Reed Relay or Opto Coupler?

@mariosantoniou5542 4 года назад

Great work !!! Thank you !!

@GarryGri 5 лет назад

Hmmm... What if you used, say a foot long addressable LED strip (like a bit of APA102) the same principle should apply. In theory you should be able to display a full colour picture. Could be a lot of maths though!

@saikatd9037 2 года назад

How to convert any custom char to array form Please reply

@hunj4jebevegdn 5 лет назад

I cannot find the hall sensor.What can I use ? TCRT 5000 sensor??

@nicolauscopernicus6830 5 лет назад

Very impressive, but how can I connect a ds3231 RTC module?

@narayanlalahari2933 5 лет назад

Hey there 😊. Can you suggest me the code for scrolling the text that is displayed . Because if I type something long it all mixes up 🤦.

@parthuanilkumar5362 5 лет назад

I make it but two red and one blue led not work why?? Plz replay

@FaktaAndTekaTeki 6 лет назад

hi, its a nice project and i want to make this one, but i want to use motor driver to control motor speed and get timing. can this work?

@mahad1984 5 лет назад

How could we use it to show pictures

@imnotbeluga007 3 года назад

Basically, this is an LED matrix, but instead of using shift registers, it uses a motor.

@josephcybernetics 5 лет назад

How to have a 3D video played in this type of thing ....like a hologram

@nisargvarma6054 5 лет назад

Hi, This is a very informative video. Great work! I would like to know how to display images and videos. That would really be cool, isn't it!?

@SamiUllah-pd4sk 5 лет назад

Sir , Can we make a digital clock using this ?

@b.g.bvoice1142 6 лет назад

where were you

@joydipdatta8160 5 лет назад

If i use d6851 hall effect seensor?

@prathambhatnagar8653 6 лет назад

Make a complete tutorial on self balancing robot

@DPTech_workroom 5 лет назад

Hi. Can you do the same with NeoPixel?

@shantanujhaveri9958 5 лет назад

could you connect the fan directly to the motor?

@NaveenSword 5 лет назад

Yes you can connect the propeller directly to the motor without using the pulley.

@prathambhatnagar8653 6 лет назад

How to sent and receive ir signal by arduino

@divyanshsharma6486 6 лет назад

hello sir, can i use esp8266 with dis program

@Stratix91 6 лет назад

nice, cool guy

@tutorialbyian 6 лет назад

Its so cool

@dominicfalco5836 5 лет назад

De dónde eres ?

@dheerajgupta5362 4 года назад

Sir ye project hmko chahiye

@shubhamkhivanasara4358 6 лет назад

Awesome 👍

@aamir99204 5 лет назад

Dc motor rpm??

@juanmanuelfrancobyrne 6 лет назад

No tienes un canal solo en español? No entiendo ingles, thanks

@ELECTRONOOBS 6 лет назад

ru-vid.com/show-UCL_QvUUeriC6q610RCXDlSQ

@ANUJKUMAR-mj5mb 4 года назад

Nice sir Can you help to making this project

@ELECTRONOOBS 6 лет назад

You would need an opto swithc like this one: www.ebay.com/itm/10-Pcs-1-6-Slot-PCB-Photo-Interrupter-Slotted-Optical-Switch-HY301-21/172618166667?epid=2113194673&hash=item2830d8318b:g:zXcAAOSwnF9Y6hCO Passing something in the middle of it will be your on/off

@sreedevilighting5359 5 лет назад

I would like to chat with you to know more in details about your project

@voldy3565 5 лет назад

Next make it RGB.

@sansanjasthinepaguio384 Год назад

Codes

@ohmslaw6856 3 года назад

Man.. coding is such a pain

@dh2032 6 лет назад

from EEVblog (Dave) Your accent is a bit heavy going making him difficult for me understand, I have to watch it a second time, to understand what you are saying. :-) I like the project seems a quite good, it seems to be a clock, What I don't now how you would set the time on it, apart from starting it 12 o'clock? Would it need a quarts crystal think to keep it on the correct time? How about making the rotating movement charge the battery some how, then it could go 24 hours a day, as a real clock :-)