I am using the Particle SSD1306 library with an i2C module. All has been working well with a lot of different programs.
I just noticed I had been using:
`#define OLED_RESET 4`
`#define OLED_RESET D4`
I am surprised it has been working given that I must have copied the first statement from an old Arduino sketch.
Given that D4 happens to also be TX on the Xenon(Serial2), would this cause any problems?
Thanks in advance for any help.