Arduino millis() function: 5+ things to consider
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- เผยแพร่เมื่อ 9 มิ.ย. 2024
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It's been 4 years man I'm still waiting on you to tell me the tensile strength of a rubber band
6 years ago i learnt the basics of arduino from open source hardware, and now i see you again doing this amazing stuff .
amazing
Thanks so much!
The best video ever explaining millis. Thank you and please keep up the great work.
I could have Subscribed even before completing watching ; but content was great, so I subscribed after watching.
Keep up the good work.
Greetings from Tanzania 🇹🇿
So great! Look forward to seen something similar on timer interrupt.
One minor point of critique:
Explanations on absolute programming basics (like: What is a variable, what are datatypes, basics about functions etc.)
are best explained in a seperate, dedicated video.
Otherwise, it makes the video feel a bit tedious despite the well structured nature of this video.
Particularly unpleasant for people with some level of programming experience.
Other than that, this video was quite helpful.
this is the dedicated video for programming basics.
Your video lessons are fookin brilliant.
its just incredible how fast things can happen in programming, every millisecond is important
For a moment i was confused and angry? Why the hell You have only 107k broo...Ur content is soo sooo soo awsm you should me 10 millions
So what’s the tinsel strength of an elastic band?
Damn these videos are soooo good for beginners. Its a shame it dosn't have more views.
Hey! who are you man. Believe me you have some very special, good gifted skills in terms of explaining things. The way you elaborate is simply magnificent. This is a great learning experience and please continue this. Thanks
I never saw a video like your videos great. thank you ...
This is a very good video and super nice explanation.
This tutorial was incredibly useful! Thanks! I am trying to build a toggle button, like a push button that has the functionality of a switch, and was having trouble figuring out the code and set up. Any help would be appreciated. Thanks!
i was blooown away how its explained in detail, thanks
Thanks for watching Ivan!
Wow! What a video can explain everything! 👍👌
best for this topic, i have been looking for good tutorial like this, u make me have more interest in Arduino programming
Great to hear!
Hi thank for good explaination, I never a regret a penny to buy a lesson from you. Looking forward to learn more from you master.
Very helpful! Will you be creating more videos soon?
Great work!
beautifully described thank you.
Very nice. Thank you
it was very help full thank you
1:40
Correction. Most Arduinos use a ceramic resonator. This is not as accurate as a crystal. Generally, a crystal is needed for things like serial communication in order to control the baud rate. The crystal pictured in the time stamp is used for this purpose. It is the crystal for the USB to serial converter. In this case the converter is another AVR microcontroller, an ATmega16U2. The crystal resonator used for the ATmega328 is pictured just below "ITAL" in the Made in Italy text.
-Jake
Doht! Thanks Jake - that's much appreciated!
I wish I could annotate these after upload - I might correct and re-upload...hmmmm.
@@programmingelectronics
It's easy to miss this. I have a mini clone that had a bad resonator.
Thanks for sharing.. This helped in our project
Glad it helped!!!
best explanation i ever met. thnx
You are welcome!
Love ya man!
Excellently explained
Thank you!
My heartiest thanks to you....very helpful video.....
Thanks for watching!
Very excellent video, thanks!
Thanks so much! I hope it was helpful!
Thanks cool video!
woow a very nice video. thanks for effort and very good video made specially the explenation.
i like your work cant wait to see more, have a nice day.
thankyou very much this really helped me a lot
Glad it helped!
awesome sir...
gracias por poner mucho esfuerzo en hacer un video muy bueno
Great series about Arduino. Thanks. Question: is the “49 days waiting eating donuts and crab cakes” picture taken in Annapolis, MD?
Hello , can i use two functions at same time ? , first function is for running DS18B20 use millis() , seconde fonction while (for running stepper motors and many security sensors , thanks
Thank you. This video is the first step in my next project: Calculating the RPM of my stepper motor. The Arduino code that runs my stepper motor driver, turns a Pin connected to the PUL pin of the Driver to HIGH, has a delay of 500, then turns the pin to LOW. This code loops to run the motor at a constant RPM. This video will help. But if you have any suggestions/video recommendations to calculate the RPM, let me know. Thanks!
Hi, can you do a lesson on the RTC DS3231 displayed on a OLED with the correct to use library's. thx
Nice video, but there are some inaccuracies:
1. The timer/counter does not start counting “as soon as power is applied”: it starts counting when initialized by the Arduino core (see the setting of the TCCR0B register in init(), in wiring.c). Admittedly, this happens very shortly after power is applied.
2. The timer/counter does not overflow after 49 days: it overflows every 1024 µs. The 49.7 day rollover is for the millis() count, which is a different thing.
3. millis() does not give the running tally stored in the timer/counter: it returns a count of the timer/counter overflows, plus some correction to account for the fact that the overflow happens every 1024 µs instead of every millisecond. The micros() function, unlike millis(), does make use of the running tally kept by the timer/counter.
Thanks for this!!!
Finally, my weeks of frustration are over!
great video.
Thank you!
HEY! What about the tensile strength of a rubber band???? :)
Thanks for this amazing video
Challenge q2: The values goes from 0 to 32,767, then from -32,768 to 0 and this cycle repeats.
cool , thanks. :]
Did I miss it. I’m watching it again.
Great, BUT please sequence number on your videos properly to track which ones are next
Great point Frank...I'll have to do that!
great sir
Thank you!
Do you have any services or help on doing program
the best
can you please upload a video on 'color tracking robot using Arduino & android' ?
Thank you for explanation, Sir. I want to know, weather millis function can be used for RCWL sensor or not. I tried but nit succeeded. Can U plz guide me. Code as below and I want sensorVal=1 for 5 min
int =rcwlPin=2;
int=sensorVal;
cosnt unsigned long Interval=1000*60%5;
unsigned long PreviousTime=0;
void setup(){
pinMode(rcwlPin,INPUT);
Serial.begin(9600);
void setup(){
sensorVal=digitalWrite(rcwlPin);
millis()=unsigned long CurrentTime;
if(sensorVal==1){
if (CurrentTime-PreviousTime>=Interval){
sensorval==1
PreviousTime=CurrentTime;
}
}
else
{ (sensorVal==0)
}
Serial.println(sensorVal);
)
I upload this sketch, but not getting desired result.
Kindly resolve it. Thank you
Awesome
Thanks!
how to amplify a input signal in ardunio....or which function is used in the arduino codes??????!!!1
duckduckgo.com/?q=arduino+amplify+input+signal&ia=web
I having a big problem ... I don't know how to reset my timer timeout
When he uses:
if (millis() > 3000UL)
What does the "UL" do?
Great question! It means Unsigned Long which is a non-negative big data type
@@programmingelectronics, right , the UL or ul converting a number value to unsigned long , but what type is a value when convert a value using u , as example: 3000u what type unsigned is 3000u? integer or long ?
and my problem is "I'm making a digital clock [7-segment] using AT89s52 (NO RTC) but the time drifts about 5.6 seconds in every hour!! and this At89s52 microcontroller doesn't have any function like millis() inside AT89s52's IDE(Microvision Keil software), and a book suggests to play with the ppm and fix the error.But, yet the problem is At89s52 is not like Arduino "
BTW I'm using a 16MHz crystal with this microcontroller and using timer_0 to generate a 25ms delay and using interrupt_1 to count that 40times so that there will be 1 second completed, but that's not the problem I guess.. I just need help.. .😎😎
Neat project Chandrachur! I have not worked on an application like that so I can't be of much help...sorry and best of luck!
@@programmingelectronics It's Okay sir, 😃😇 I'm very happy with your so kind response.. .🤓🤓
I am a dumb engineer, but since you have quantified the deviations, why not make your seconds 5.6/3600 x frequency shorter?
It is quick and dirty, but I think given the hardware, there is not much else you can really do. There are too many sources of error at play.
@@juliusfucik4011 Will try this for sure, ❤️ and u r not a dumb at all, even we can learn a lot from u brother 😊❤️❤️. Thank you, love for u from India ❤️
what is 3000UL???
Unsigned long. It is an explicit cast of the number 3000 into the unsigned long format, so that you compare equal data types.
1:20 I find it amusing to suddenly see a photo that i made over 14 years ago and put on Wikipedia pop up in this video.
The circuit wasn't even fully wired up correctly. Now look at me, still trying to learn how to make electronics work properly!
and the rubber band?
5:40: isnt the clock going too fast?
I love you
Thank you.
you didn’t explain the tensile strength of a rubber band
Sorry about that
Noice
6:00
I suffered watching all that rubbish about electronics so I could see the bit about elastic bands. There was nothing there. I think this was click bait for lovers of elastic bands.
Keep up the good work on the presentation of technical stuff in a language I can follow.
I mentioned the rubber band before the re-upload and thought he must have re-uploaded to add the rubber band part. Nope, still nothing about rubber bands. I think it must be a joke.
I'm disappointed where is the tensile strength of a rubber band
I thought you are going to explain hardware side of Timer/Counter setup in registers. But then you changed your mind and focused on Unsigned datatypes. These lesson looks unfinished lesson. Please make another video about full of this hardware setup...