Hi,
I've got a datasheet for an OLED and it shows recommended input circuitry for the charge pump and various other pins. I've got 2 questions.
1) It all seems fairly simple apart from the input labelled GPIO. Why would you need a GPIO input at that point? What should it be connected to?
2) It's a bit annoying that the VBAT_in voltage is 3.5-4.2V. What would I need to change to use 3.3V or 5V for VBAT_in?
thanks!
I've got a datasheet for an OLED and it shows recommended input circuitry for the charge pump and various other pins. I've got 2 questions.
1) It all seems fairly simple apart from the input labelled GPIO. Why would you need a GPIO input at that point? What should it be connected to?
2) It's a bit annoying that the VBAT_in voltage is 3.5-4.2V. What would I need to change to use 3.3V or 5V for VBAT_in?
thanks!