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adafruit / Adafruit_SSD1306

Arduino library for SSD1306 monochrome 128x64 and 128x32 OLEDs
http://www.adafruit.com/category/63_98
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New version of the 128x32 (STEMMA) display remains off after power cycle #223

Closed fxframes closed 2 years ago

fxframes commented 2 years ago

New version of the 128x32 (STEMMA) display remains off after power cycle.

I have two generations of the 128x32 OLED display. My PCB is based on a standalone ATMega328P which I'm programming through an Arduino Uno (as ISP). When I cycle power to my PCB (or the UNO for that matter) the old one (#931) comes back up normally as expected. The new one (#4440), though, remains blank after a power cycle. If I re-upload the code to the ATMega328P it then works normally again.

The code calls and as I said is working normally on both screens except for the power cycle scenario.

For the new displays is there an extra line of code that needs to be in there to bring it back up after turning it off/on?

Thanks.

ladyada commented 2 years ago

theres no reason it wouldnt work, please post your code and wiring to the adafruit forums for tech support :)