Hi guys, I've been trying to make my two cheapo OLEDs work (1.3 inch 128x64 SH1106) and I get no reaction whatsoever from them. The backlight won't light up, they just appear exactly like not connected.
But what I mean to ask you guys is: the ADD SELECT pads on the back of my OLEDs state the addresses 0x78 and 0x7B (written on the silkscreen). Should I adjust the tiar object(s) to these addresses?
(PB8 to SCK, PB9 to SDA
SCK and SDA each via a 10k pull-up to VDD
GND to GND
VCC to VDD (3.3V should be no problem?))
Sorry I don't have more information, I just can't seem to find the right datasheet. If found some info via this link: http://robotcantalk.blogspot.tw/2015/03/interfacing-arduino-with-ssd1306-driven.html
"The I2C slave address is 0x3C, as the OLED address select jumpers have been soldered to 0x78 (I’ll explain this part later)."
That means I won't have to change anything software-wise, right?