I bought the cheapest 1.3" OLED 128x64 display on Ebay. It has a 4-wire SPI mode, but the CS is fixed to ground.
Most libraries have a bad result, but the u8glib is almost working, only the characters are shifted some to the left.
Is this easy to fix in the library, or is there another library for it ?
Details for this display:
manufacturer: heltec http://heltec.taobao.com
The BS0,BS1,BS2 are connected to ground, so it is a 4-wire SPI interface.
On Ebay it is sometimes said that the driver IC is a SH1106, but the 128x64 display of this manufacturer has always the SSD1306 driver chip.
The labels on the board are wrong, the ‘sda’ is the data_in and the ‘scl’ is the clock. It is not possible to set it in I2C mode, since the BS0,BS1,BS2 are connected to ground and can not be changed.