128x32 View Aspect

[Phil2020]

library version

1.7.13 (unofficial)

LCD display type

128x32 SPI

Steps to reproduce the issue

When I run the demo ssd1306_demo from examples it displays text and images vertically compressed in the 128x32 display. I would think it should show in normal aspect but anything outside display size would be clipped and not shown?

I think to change the reference ssd1306_128x64_spi_init(n,n,n) to ssd1306_128x32_spi_init(n,n,n) in setup() section of example code, to correctly define my display, but I find there is no such call. Is there somewhere else I should be changing a setting or parameter to define the size?

Thanks

[Aleksei]

Hello,

This happens, because initialization steps for ssd1306 controller are slightly different for 128x64 and 128x32 displays (multiplex command for those displays is different). The ssd1306_128x64_spi_init() is defined like this:

void   ssd1306_128x64_spi_init(int8_t rstPin, int8_t cesPin, int8_t dcPin)
{
    if (rstPin >=0)
    {
        ssd1306_resetController( rstPin, 10 );
    }
    ssd1306_spiInit(cesPin, dcPin);
    ssd1306_128x64_init();
}

I didn't implement spi initialization for 128x32 oled, but you can use the code below to make ssd1306 128x32 working in your case:

    if (rstPin >=0)
    {
        ssd1306_resetController( rstPin, 10 );
    }
    ssd1306_spiInit(cesPin, dcPin);
    ssd1306_128x32_init();

[Aleksei]

Check commit f040280

[Phil2020]

That works great now thanks.