Description of the firstPage/nextPage funktion is here: https://github.com/olikraus/u8glib/wiki/tpictureloopThe idea is only to save RAM.Also: Please consider to use U8g2, which still has the firstPage/nextPage loop but also inclused a full buffer mode (for systems with sufficient RAM) .Oliver
My SSD1306 128x64 is running I2C, works fine, then locks up after 20 seconds, the screen does not refresh until I power off.So I was looking at this thread for help, assuming I am having a RAM issue? but I have 2K (Nano 328P)and my sketch upload sjows 52% of programme memory and 14% dynamic memory.. ?Should I change to U8g2lib ?Some threads say not to use the 5v from the Nano and to power the OLED sperately?And I remember you asking someone if they were using pull up resistors (on I2C)?What are my first steps would you say?
Serial interface (SPI-4) is also supported (write only)
U8G2_ST7567_JLX12864_1_4W_HW_SPI(rotation, cs, dc [, reset]) [page buffer, size = 128 bytes]