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
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
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
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.
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
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.
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...
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!
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 ;-)
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... 😁
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.
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
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.
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?
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!
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?
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
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 :-)
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
Harshal Selukar thank you. I'm so glad you say that. Keep up!
Really your best video so far. You keep getting better and better. Thumbs up :)
Dc motor rpm??
A trick: you can watch series at flixzone. I've been using it for watching a lot of movies lately.
@Max Mack yea, been watching on flixzone for months myself :D
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
Thank you very much!
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
Thank you very much!
it's nice to see who's behind the camera :)
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.
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!
0:29 you answered my question immediately. ❤
Props for having a go at the aftereffects grid effect! Not any easy one :)
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
we miss you
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.
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...
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!
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 :).
True!
You are good in explaining stuff
You project always outstanding than other people :)
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!!!
Gracias. Saludos!
your explanation is so lucid. thank you bro
i also made a too slow speed rotating display my own self. your also so good
Wow, you put alot of work into your videos! Thank you for the great explanation!
Nice Video with detailed information. Thank you.
Love the motherboard wall!
Best project of your channel
Keep it up
Se lo mandaste a Dave? Que grande!!! abrazo
Si :) Gracias!
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 ;-)
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... 😁
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.
te quiero... no podes ser tan genio! saludos desde argentina
Pretty awesome! Question is a way to change patterns into shapes or like a skull design?
This video is brilliant, many thanks it was really helpful!
Great video .. can you explain how GPS and compass work in drone and how we build arduino drone with GPS..
Brilliant as always
Dude you been doing Qazi color grading course?
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?
Hey man awesome tutorial as always. What's the rpm of the motor ,the specifications would help a lot
Hi, congratulations!..change the resistor of blue to 1k .
thanks dude this helped me make one! put my own little spin on it through B)
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
Nice.....
But please also include how code works in each project series if possible......
Thanks
Hey it looks great, could you tell me which DC motor u used? i could not find it in the part list
thank you for informative video
If you don't mind can you tell me what kind of DC motor you have used.
make the tutorial on Arduino programming series to better understand. keep making
Does your battery already include a discharge protection circuitry?
any ideas about how much rpm is required? and what is the black rubber to connect the motor to the thing?
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.
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?
Great work !!! Thank you !!
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!
great i love it i will try to make one
what is the problem of the POV display
Basically, this is an LED matrix, but instead of using shift registers, it uses a motor.
Very impressive, but how can I connect a ds3231 RTC module?
Isn't your schematic a bit wrong? You connected anodes to the ground and cathodes to output pins. :)
Would it be possible to spin in a second axis to get a sphere of display rather than just a flat image?
Its so cool
How about dimming the blue LED by using PWM or increase the resistor value?
How to have a 3D video played in this type of thing ....like a hologram
How about images, like Nike shoes for an instore display? Can you do this? PM me when you do. Thanks
can we substitute the hall sensor with Reed Relay or Opto Coupler?
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?
nice, cool guy
Awesome 👍
Hi.
Can you do the same with NeoPixel?
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?
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 🤦.
where were you
I cannot find the hall sensor.What can I use ? TCRT 5000 sensor??
Make a complete tutorial on self balancing robot
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!?
Sir , Can we make a digital clock using this ?
I make it but two red and one blue led not work why?? Plz replay
Nice sir
Can you help to making this project
De dónde eres ?
I would like to chat with you to know more in details about your project
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
No tienes un canal solo en español? No entiendo ingles, thanks
ua-cam.com/channels/L_QvUUeriC6q610RCXDlSQ.html
How to convert any custom char to array form
Please reply
How could we use it to show pictures
How to turn on blue LED clock perimeter
If i use d6851 hall effect seensor?
hello sir, can i use esp8266 with dis program
could you connect the fan directly to the motor?
Yes you can connect the propeller directly to the motor without using the pulley.
How to sent and receive ir signal by arduino
Next make it RGB.
Sir ye project hmko chahiye
🌟🌹🌟
Dc motor rpm??
Did you just lift tinkernuts code? at least credit somewhere man...
Fudo banane laga wa
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 :-)
Man.. coding is such a pain
can i send me your cord file in my e mail
почти без акцента))
Codes
🌷🌟🌷