Oled voltage support

[MichaelMeissner]

I did not see a datasheet on the oled wiki page (and the digistump product page does not yet list the DigiSpark Pro shields, though it lists the DigiSpark Pro itself).  What is the voltage that the OLED display supports?  I know the Digispark/DigisparkPro's run at 5v, but I wanted to know if it is safe to run them at 3.3v on other processors?  Most of the other OLED screens that I've seen run at 3.3v and 5v (such as the Adafruit 0.96" OLED, the digi-ole OLEDs, most of the OLEDs from the tindie seller Miker, etc.).

[defragster]

5v. Using the combo PCB for the OLED does the right thing, just powers it from the PRO VCC.

I set two up on breadboards after I got my Beta and they are still good, and I have built 3 of the Pro Oled PCB kits and all work well, in spite of my best efforts to abuse them with liquid metal, mixed power supplies and 20 exposed metal pins to short and random pokes with a DMM probe.

My first Beta time OLED's came from Amazon and EBay and they seem to be from the same 'mold' as the ones from Digistump.

[MichaelMeissner]

5v. Using the combo PCB for the OLED does the right thing, just powers it from the PRO VCC.

Pity, ok, I'll try to remember to only use it on 5v systems (or 3.3v systems with i2c level conversion to 5v).

[defragster]

I built this for my Serial Debugging & OLED project http://digistump.com/board/index.php/topic,1638.0.html - this version uses female headers - long pins bent up for the Pro to socket down on.  Also socketed the OLED.

[digistump]

You can use them at 3.3v as long as i/o and vcc into the shield are 3.3v

[MichaelMeissner]

Thanks for the update.