Hi,
Have just reverse engineered an eBay 0.96 Oled SPI display. Does anybody know what the diode on the reset pin is for? (The datasheet doesn't mention a diode in it's typical application. Would like to keep my custom pcb as small as possible and wondering if I can omit the diode from RES to 3V3 whilst running the Arduino on 3.3V).
It's there so that a leading edge of a reset pulse is steeper. You can probably live without it. Test it first and see.
(I got that wrong)
No.
It's to discharge the reset cap faster when power is turned off.
Don't know the inner workings of the oled chip, but it might be bad to have a higher voltage on the reset line than on the rest of the pins (phantom power).
Leo..
Thanks!