Glad you liked it!

My pleasure! Thank you for watching and taking the time to comment.

Thanks for the reply and the comment on pasting over typing. I prefer to paste. It speeds up the videos also. I watch videos by Brad Traversy on programming and he types it out which is nice if you are following along. I wish more people would give me their opinions on this. I will probably start leaning toward cut an paste as I get my website better configured for people to download the code. I thought I had the code for this video up on www.cheapcontrols.com but I do not yet. I will try to get it on there soon. I will try to remember to comment here when it is up.

Thanks for the compliment and for watching.

That is an interesting idea. Are you thinking of this running on a Nextion display or just a static timer that restarts every time you restart the Arduino? I have not been very good at uploading the code to the cheap controls website. If there is something specific complete the form on the cheap controls site and I will email you any file you ask for.

The timer would run on the display. My specific application is taking user input (from the Nextion) to specify the duration of a pump run and then displaying the time as a countdown timer on the Nextion. When the countdown timer completes the pump would stop (or any other action required at the completion of a countdown timer). The internet is replete with examples but none are as straightforward as it seems like it should be. Your help would be appreciated.

What is the time frame you are talking about, minutes hours days? This could be an interesting video.

I’d like the flexibility of user input configuring all three. Ideally with a daily / weekly recurrence option - but I’m dreaming here. My immediate need is to use input from the user via the Nextion to configure a countdown timer for hours / min / sec (and not rollover at 00:00:00) and execute something at the start and end (in my case a relay to start a pump and stop it when the countdown ends). You’d be an internet hero if you could make this simple. I’ve searched literally for two days and found very little (that I could understand anyway...). Maybe its just inherently a deceptively hard problem?

Sounds good. Consider going over to the Cheap Controls web page and entering a comment with your Email address so we can discuss this in more detail. If you don't want to do that I understand and will try to get a video out on this project next week.

I have not tried that but, you could try and set the objects you want to change to global or maybe You could set a global variable and test for that value on page load.

@@CheapControls thanks i will try that

@@CheapControls doesnt seem to work or i do it wrong. i have every button and page globally and the variable as well but it doesnt get found on other pages

​@@CheapControls but i cound try to send something to the esp32 and then it sets the font

Sorry, I have not had time to try this out but I will try to look at it tonight. I hope you would not need to store something away from the physical display on an external device but that is another option.

It doesn't work very well but if perfect accuracy is not needed, it works ok.

@@CheapControls if accuracy is need. do i have to install a specific library for its communication/Serial and what would it be?

No library. Millis is part of standard arduino code. Just use variables.

If you want accuracy you will need to add a Real time Clock chip