I have NHD 2.7 12864 WDY3 OLED, I am able to initiliaze and execute sample arduino codes on it. But i have difficulty with putting characted o the screen my procedure to put character on the screen is:
void PutChar(char ch)
Set_Column_Address_12864(0x1C,0x5B); //1C & 5B = DISPLAY Start & End address.
But there is nothing to display on the screen, when i investigate D0..7 pins with logical analyzer there are some changes on the pins but no output on the screen. At that point what may i missing out here.
Does Font table change according to its pixel size for example 12864 requires different font table than 12832 or 25696
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