Arduino for STM32

Interesting. The data output has become clearly more correct.

If previously information was displayed mainly in integers 80,81,82, etc., now
113.50
113.00
113.25
113.25
113.50
112.50
112.00
but for some reason a bug remains - at one point the readings are not readable.
Log
65.25
65.25
65.25
65.25 ...

Here's my sketch, maybe I'm missing something?

maybe you want to change the way you write your code. I would do something like this.


//update the display
if (millis() - timer_display > PR_DISPLAY) {
timer_display += PR_DISPLAY; //advance to the next update point
//update the display ...

in setup() add

timer = millis();


you forgot to initialize the variable. And use \[code\] blocks to enclose the code in posts here, that makes it much more readable.
(global) variables that are uninitialised takes an undefined value, not necessary 0 (zero). imagine that it is 0xffffff, then ...

The code that I presented works but the sensor readings are not menud. are read only once at startup.

I use a standard K type thermocouple. I also know that it is not read quickly. The problem is that it is not read when calling millis, but only when delay.

Yes, I know about the problem of reading ...

Hi all.
I encountered a problem on the bluepill board, the max6675 library with a mils delay refuses to work correctly.
For the library itself to work, a delay of 250 or more is required, but since the sketch uses a PID, such delays lead to unstable operation.

When using classic milis processing ...