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SSD1322 5.5 OLED Display issue #2559

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fcig opened this issue Dec 30, 2024 · 3 comments
Open

SSD1322 5.5 OLED Display issue #2559

fcig opened this issue Dec 30, 2024 · 3 comments

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@fcig
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fcig commented Dec 30, 2024

Hi, I'm having an issue with a SSD1322 OLED that I bought from the link below.
https://pt.aliexpress.com/item/1005006049846504.html

I'm using U8g2 through 4P SPI and I've tried all SSD1322 256x64 constructors, NHD, ZJY, sw spi, hardware spi, enabled U8G2_16BIT, arduino nano, stm32 blue pill, checked the pins, 5v, 3v3... no success at all, the display simply doesn't show anything. Looking for images and youtube videos about this display I've noticed that everyone is using the display with a different board with 2x8 pin header on one side with resistors to choose the comunication method, while mine has the SPI pins one one side and 8080 on the other with no resistors to choose.

Did anybody tested this specific board and have any suggestion that I could try? I think it's easier to say I'm doing something wrong than expect the board to be broken...

EDIT: I tried to use the 8080 pins with the respective U8G2 constructor and it also didn't work, but I can hear the screen making noises...

@olikraus
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olikraus commented Jan 7, 2025

At least something should be visible.
The P8080 labeld SMD thing looks like a solder bridge. Did you remove this for your tests with SPI interface?

@fcig
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fcig commented Jan 7, 2025

Initially no, but after my post here I found another seller on aliexpress with one buyer comment saying to remove this bridge to work through SPI. I've tried that and still no success... I'm also confused about the specs because in some places there is information that this screen can work with 5v and in other places that it is 3v3 only, so I don't know if I damaged it doing this bunch of tests.

I've also bought a 3.1 OLED display, also with SSD1322 and the same 30 PIN connector behind... if I can make this new display work I'm willing to swap the boards to test the 5.5 screen, it should be compatible, right?

@olikraus
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olikraus commented Jan 7, 2025

some places there is information that this screen can work with 5v and in other places that it is 3v3 only

Be aware, that this not only applies to the power supploy, but also to the GPIO connections. A 5V Arduino Uno may not be able to drive a 3.3V display.

In the gallery https://github.com/olikraus/u8g2/wiki/gallery#2-oct-2016-ssd1322-256x64-nhd-display
there is an adapter board between the 5V Arduino Uno and the OLED. Not visible, but there is a 74HC4050 level shifter included to get 3.3V signals for the display. In Arduino world usually something like this https://www.az-delivery.de/en/products/logiklevel-wandler-3-3v-5v is used.

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