Hi, I recently bought an OLED 2x16 display (I was going to use it an a classic arduino board). I’ve seen some of the topics already about connecting displays and using the LiquidCrystal library, but I have a few questions about connecting this sort of display to the spark…
As far as I can see, the display requires 5v. What are the best solutions to power the spark and the display from usb? (I’m hoping I can do all this from the one usb cable, possibly plugged into the spark?)
Also, how could I power both from a battery? (what sort of battery would be suitable and how could I get the 3.3v needed for the spark and then a separate 5v for the display).
I’ve read somewhere that D2 on the spark is not 5v tolerant, would it be better to not use this pin with the display and use an alternative?
Sorry if these are really simple questions, but i’m not a very good hardware person. I want to learn though, so would be very grateful for any ideas/advice.