When using a 128 x 64 OLED display the SSD1306 OLED driver displays the 16th character on a row incorrectly about esp-iot-solution

[simonliu009]

@fivdi Thank you, you save my day.

[cima]

It is not just about the letter is wrapping around. If I runaway from display it totally falls appart.
I suspect that author of this library bought display advertised as SSD1306 but obtained SH1106 that does have the two column shift. There's a couple of threads in arduino forum:

• problem with a 128X64 oled i2c display
• [SOLVED] SSD1306 can only write to part of screen (U8Glib works, AdaFruit not)
• Problem with SSD1306 LCD and U8glib

I have my firts two columns filled with "random mess" (new mess within each boot).

Your suggestions totaly cures my problem.

Thank you so much @fivdi

Offtopic: Some polishing is needed for this library. On my Lilygo the OLED display is at different pins and without modifying the code of this library I couldn't use it. Wires are hardcoded.

[fivdi]

Thank you so much @fivdi

@cima you're welcome 😄

[LucasCanete]

@fivdi why is iot_sdd1306.h no longer in this project? I can only find it from other people's bifurcations but it seems it is no longer supported

[fivdi]

It looks like it got moved to a different location. See: https://github.com/espressif/esp-iot-solution/tree/master/components/display/screen/controller_driver/ssd1306

[LucasCanete]

@fivdi Yes thanks for your answer. Kind of weird that now that it has been moved it lacks some useful functions like iot_ssd1306_draw_string() and iot_ssd1306_draw_char() right?. Probably they will update it later

[fivdi]

Kind of weird that now that it has been moved it lacks some useful functions like iot_ssd1306_draw_string() and iot_ssd1306_draw_char() right?.

Yes, that is strange. The implementation doesn't look finished. There doesn't appear to be any examples using the SSD1306 anymore. I can't say if it works, I've never tried it.

Probably they will update it later

Perhaps.