Arduino NANO Propeller LED Analog Clock 

Ditto!

Please send the source code we have to submit project on Monday

exceptional example of rpm determination!

mar sai coding nahi horahi.plz help me

Better not create short circuits or ya might frie your arduino lol

How to upload program ?

Can you please tell me about the specification of hall sensor that has been used here. And if you know kindly let me know the link from where i can buy it . Please help me.

i was going to post exactly what you are saying ... but you said it in a much better way ......there should be no need to adjust the speed of the motor to complete the display ... only to optimise the rotation of the motor

@Jason Alannah I'm only a hobbyist coder, myself, but I took a look at your code, and you're doing a lot of bit shifting, which I'm not very good at. I'm guessing it's to do with the LEDs. So without comments, it's hard for me to tell what's going on. I see some built in delays, which look too precise to be anything but timing for the clock display. I can only tell you how I would approach the project. 1) Divide the entire 'image' to be drawn into slices, say 36 to make the maths easier. You can do this with cartesian -> polar coordinate mapping, or just hand write each slice and stuff it in an array during Setup(). If you do the latter, you'll still have to account for the position of the hands of the clock during runtime, but you'll have to do that either way. 2) Hall effect sensor triggers the beginning of a 'frame' (via the interrupt) and polls the time (millis()) into newTime variable. 3) newTime - oldTime = elapsedTime. This is the length of time it took the _previous_ loop to do the entire rotation. 4)elapsedTime / 36 = sliceTime. You want sliceTime so you can track how long each slice is taking on average. 5) "while (millis() - newTime)/i < sliceTime" -- Here is where we're delaying, between each slice. We want each slice to last 1/36 of a 'frame' or full rotation. 6) don't forget to set oldTime = newTime! pseudocode (I don't even know what language I think in, anymore!): Setup(){ oldTime = millis(); // something to start with ### // register an interrupt for the hall effect sensor(I don't remember how with arduino, google it) } Main(){ while true { ### // figure out the proper time and create the clock face and an array of slices to draw it. ### // Probably only needs to update once per second. } } Interrupt(){ newTime = millis(); //fetch the current time elapsedTime = newTime - oldTime; // get the time it took to do the previous loop sliceTime = elapsedTime / 36; // the length of time each slice should take for i = 1 to 36 { // do each slice ### // draw a slice while (millis() - newTime)/i < sliceTime { // delay until the current slice should have completed pass; } } oldTime = newTime; // update oldTime } It's rough, but that's what I came up with off the cuff.

Hey bro, what if we change the battery with wireless charging?

@@pemulungelit9050 Thats what has stopped me from doing something like this.. I want it to be run by wall power, which means either using a slip ring, which complicates the mounting of it, or to do some kind of inductive charging.. haven't spent any time figuring it out. I wonder how long that battery lasts though!

@@Corbald can i use proximity sensor instead of hall sensor

This idea would be a more accurate version of what I was thinking. With even just the single index magnet, some mathematics and timing measurements could be involved to determine the RPM, wait for the motor to stabilize, and then "start up" the clock display. All the while keep measuring and readjusting the display to match inevitable but ever so slight variations in motor speed.

Bro ur bulid this project, this project are working or not working

@@dll7860 absolutely working when you will do everything right

Are you have code?

No there isn't, it is a crappy job.

@@robegatt Facile d'insulter et toi avec tes deux mains gauche quel est ta réalisation personnelle?

@@gerardmontessuit7854 What do you know about me? do not make assumptions. That is an hobbist thing and it is fine, but do not call it a skillful job.

Parabéns.....lindo projeto.....

круто!

ТОЛЬКО СУНУЛ АРДУИНО В ЮСБ ВХОД СГОРЕЛО САПРОТИВЛЕНИЕ ЧТО ЭТО МОЖЕТ БЫТЬ

Осталось только узнать, откуда берется время, и как его корректировать. :-))))))))

@@user-io7on2yt4u время захардкожено

@@user-io7on2yt4u можно использовать модуль реального времени, чтобы время бралось оттуда.

@@ryazanman Можно. Но я его здесь в упор не вижу. :-)))))))

@@user-io7on2yt4u время устанавливается тут: "byte hours = 12; // start time byte minutes = 15; byte seconds = 00;" корректировать только в скетче.

Hello, Have you did this project or not? I have to ask something regarding this project.

GyroGearloose-HackingRVsCheap wooooow

Yeah, it'll work forever..))

You will not need 10k Ohm as the port pin already pulled up in the programming. Please check this "pinMode(sensorPin,INPUT_PULLUP);" inside code.

Connect Arduino Nano Digital Pin 3 to 1K Ohm register and Arduino Analog Pin A0 to output of hall sensor. Same as Arduino Uno pins used in the diagram.

Can i replace the hall sensor with proximity sensor

I also cant able to find this sensor. I found but with another name. kindly help me too

Time setting options will be provided in the future video. Thanks

We will add in the future Videos

Very nice I wonder if you can send list of parts