For the u8glib, you have to ask in the u8glib thread if the display is supported.
I only started recently using u8glib with another super cheap OLED. http://forum.arduino.cc/index.php?topic=217290.0
Hello,
I just wanted to tell you, that the module is working now.
I wrote to the chinese seller, and he sent me a link to a chinese website with a working library and code: 14blog.com
Google-translate does hard work on this page
BTW the module doesn't need any resistors, and it works on every digital pin.
Interesting.
So they use I2C without acknowledge, because SDA can not pull the line low, as I suspected.
But they use a library with software I2C that can be used on any pin ?
I clicked the download link, but did not get a file.
Caltoa:
Interesting.
So they use I2C without acknowledge, because SDA can not pull the line low, as I suspected.
But they use a library with software I2C that can be used on any pin ?
I clicked the download link, but did not get a file.
Yes, I2C can be used on any pin. I am too much a newbie for finding that interesting.
I uploaded the rar-file to my box-account: Box
Still strange. The SSD1306 is a standard controller. According to the datasheet of the SSD1306, standard I2C should be fully supported. In fact U8glib has been reported to work fine with the Adafruit OLEDs (also based on SSD1306)
olikraus, I read that SDA is split into two pins for reading and writing. The heltec display uses only the input pin. I have been reading about those heltec displays for my own heltec display (SPI without CS interface).