How to clear display?

[rozrabiak]

Hi, after restart cpu display always show last digits.
My setup:

  tmDisplay.begin();  
  tmDisplay.setBrightnessPercent(90);

tmDisplay.clearScreen();

Above set's display to 00.

 tmDisplay.offMode();

Above switch off display's, but when I turned ON again - on displays I have last number's :-(

What I can do to clear registry (buffer) in TM1637 using this library?
I want to have my display without any digits after start program.

Regards!

[rozrabiak]

I need turn ON only colon - as status.

And another question, how to select (I have two displays) which colon turn ON?
Now when:

tmDisplay.colonOn();

Two colons are turned ON :-)

[AKJ7]

Hi, after restart cpu display always show last digits. My setup:

  tmDisplay.begin();  
  tmDisplay.setBrightnessPercent(90);

tmDisplay.clearScreen();

Above set's display to 00.

 tmDisplay.offMode();

Above switch off display's, but when I turned ON again - on displays I have last number's :-(

What I can do to clear registry (buffer) in TM1637 using this library? I want to have my display without any digits after start program.

Regards!

Hey,

sorry. It has been almost a year since you posted your question. I wanted to run and test the issue myself but i never got to doing so. Is the problem still an issue? If not then try this:

You see the library caches the last display value so it wouldn't need to physically send it to the display device every time. It is also the trick used to handle animations.

#include <TM1637.h>

TM1637 tm(2, 3);

void setup()
{
    tm.begin();
}

void loop()
{
    // Display Integers:
    tm.display(1234);
    delay(1000);

    tm.clearScreen();
    delay(1000);
}

does exactly what you are expecting. clearScreen() clears the buffers, resets the animation and displays nothing on the display. Try it here: https://wokwi.com/projects/423979794621847553 .

If there are no other questions, make sure to close the ticket.

Thanks.