OLED display issues, gLCD_SH1106_I2C1, Arduino Nano

[mnfisher]

Great, got it going. The esp32 lets you choose the pins for most functions. There are some limitations- a12 for example - connect to this and you can't reprogram the board - as I discovered whilst testing:-(

Thought of a way to do i without the extra buffer (more of an issue on other MCUs) - but FC's name mangling makes it much harder (especially for late night hacks...)

Martin