Como comparar hora e minutos no mit app inv2

Hello. I am trying to compare a date from a list with todays date to see how many days apart they are. Ideally I would like to find the dates that are less than a week apart. Here is what I have but i get an error which looks like all the dates are being populated from the list into the end date.

the 6/13/2022 is just a test date. I could probably move the get todaysdate into that spot. I just can't get the duration to work properly. I would like it to create a notifier when it finds the date in the list.

Thanks for any help

mark

Try this way, duration returns the milliseconds between instants

Make instant returns an instant in time specified by MM/dd/YYYY hh:mm:ss or MM/dd/YYYY or hh:mm.

Hi thank you that worked. it shows how many days till a certain date. I think in need to go the opposite way. I need to search the list and find the dates that will expire in 5 days from todays date. for example say the end date is set for 3/18/2022 and todays date is 3/13/2022. I want to be able to send a notify box saying 1 item will expire in 5 days. i assume the list? thing is where the change needs to be made? or is their and easier way? Here is what I modified so far

the label1.text is just there so i can see what it is doing. I will be removed

Something like this maybe

Or something like this: dateList.aia (5.3 KB)

3 Likes

Hi thank you dora and anke I got it working with your help

1 Like

Hi I have been stuck on this for a couple of days. I want to compare incoming data to already stored data and if it is different, update the database and then display the saved data.
The blocks I have work fine for one piece of data but as soon as I add another it breaks somehow.

I believe it is something to do with the clock timer, because the value will stay on screen if it's just one piece of data but as soon as I add another it only stays on the screen for the period I have set the timer.

I can receive and display data from arduino no problems, just comparing and saving giving me problems

The blocks I have work fine for one piece of data but as soon as I add another it breaks somehow.

try moving the block (call Update_All_Values​​3) inside Compare_to_Database3
For Example :

if Temp_RPM ≠ global RPM then [call Database .StoreValue]

[call Update_All_Values​​3]

1 Like

try moving the block (call Update_All_Values​​3) inside Compare_to_Database3
For Example :

if Temp_RPM ≠ global RPM then [call Database .StoreValue]

[call Update_All_Values​​3]

That works for the one value but as soon as I call compare_to_database in the second if/then it's the same problem. I also tried moving the compare_to_database outside the if/thens that replace the text and outside the receive bytes but that returns nothing.

1 Like

do you mean you just got value from RPM and Gain not give you any value?

1 Like

Yep, just blank in the text field. If i call compare_to_database in each if/then the text is displayed but only for the length of the timer.

If i change the length of the timer the data is displayed for that length.

Is DelimiteByte = 10 set?

What is the transmitter code like?

Delimiter is 10.
Thanks for making me look at the code again though, I was using \n to separate the values but that being the delimiter was causing the problem I believe.

I've changed the code and app and this seems to be working.

Code: (this obviously isn't my whole code, just the sending part) BTserial.print("R"); BTserial.print(rpm); BTserial.print("|"); BTserial.print("G"); BTserial.print(gain);

BTserial.println("\n");

The character i send before the value is just an identifier.

Here are the app blocks, short version, have tested these with 5 values so far.

Next question, is it best practice to clear globals and tags in database before replacing them or can I just write directly over them?

Thanks for the help

just write directly over them

Another idea would be to save time, RPM and Gain.

BTW, about println()

print("one"); ------> one

println("one"); ------> one\r\n

println(); ------> \r\n

print("one");
print("\n"); -----> one\n

\n is 10 in ASCII hex.

Another idea would be to save time, RPM and Gain.

BTW, about println()

print("one"); ------> one

println("one"); ------> one\r\n

println(); ------> \r\n

print("one");
print("\n"); -----> one\n

\n is 10 in ASCII hex.

Been working all day so my brain is a bit fried.
What your saying is the \n is redundant if I'm using println?

println("\n") -----> \n\r\n

try:

BTserial.println(gain);
// BTserial.println("\n");

I assume that your BTserial works the same as Serial.

println("\n") -----> \n\r\n

try:

BTserial.println(gain);
// BTserial.println("\n");

I assume that your BTserial works the same as Serial

Ah I see, thanks. Yep that's just the name i gave to the software serial on the arduino.

If you decide to save your data in a list for graphing it over time, see

Thanks, will keep that in mind for future. Mostly just saving the values now so they persist each time the app starts