PICOBRICKS OLED Display Issues

Hi everyone,

In a recent seminar on MicroBlocks, we had the opportunity to use the new versions of the PB Kit. This version includes an IR sensor, replacing the outdated ESP01 module; as well as a new OLED display.

Some users have commented that the new display, when used with the OLED Library, intermittently goes dark and makes the display content not visible, when repetitive display writes were used.

We have traced the problem back to the contrast level differences between the old and new display models. To help you out with the identification, here are the images of both display types:

OLD Version:

New Version:

If you are experiencing this problem, here is a quick fix:

Use the Contrast adjustment block of the OLED library and set it to the highest value:4.

An upcoming version of the Library will adjust the default contrast level from 2 to 4 to address the problem.

Happy coding.