ESP8266 Community Forum

Hello @danbicks,

Thanks, I found the message with the required changes to "flip" the output of the screen upsidedown.

Sidetone : If you ever need a compact (text only) SSD1306 library I can recommend the library from Bill Greiman
http://www.esp8266.com/viewtopic.php?f=29&t=7841&p=39726&hilit=wemos#p39726
Works a treat on Arduino and ESP.

Thanks for starting this topic, gave me a jump-start using the SSD1306 Oled display.

fats699 wrote:hi guys i need help was trying to upload this and keep getting "'StartUp_OLED' was not declared in this scope"
any help would be great

Regards Martin

I too get this - perhaps it's because I'm on 1.6.7 - will uninstall and try 1.6.5 later

yes, the "automatic prototyping" in 1.6.7 is ... different or broken or ... in short: doesn't work as before / expected.

I just hadn't time to check if only esp8266 sketches are incompatible or if it bites "original" AVR sketches, too?

Hi Martin & mhlangensiepen,

These functions are in a separate source file in the original zip OLED_MOD.ino, simplest way is probably just to copy them into the main source file and compile.

Mark