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Is it possible to connect two oled displays via SPI to my Uno and send a single image to both displays, with each refreshing at an identical rate?

I have gotten a single oled display (SSD1306) to work using the U8g2 library, however i am not sure which pins can be shared in a dual display setup. There are no CS pin on my displays, only GND, VCC, SCL, SDA, D/C, and RST.

thanks!

markersniffen
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    Those displays use I2C, not SPI. – Gerben Feb 21 '17 at 19:32
  • Here is a link to the displays I purchased: http://www.ebay.com/itm/141494092860?ul_noapp=true I have a single screen running using the 4 Wire SPI bus setup in the U8g2 lib, is that possible if the displays are I2C? I'm new to this, so honest question... – markersniffen Feb 21 '17 at 21:01
  • My bad. The labeling made me think it was I2C, but apparently it support both I2C and SPI. Since in 4 wire SPI, you can only write to the display, and not read, I don't see why you shouldn't be able to connect two displays. Just connect all six lines in parallel. – Gerben Feb 21 '17 at 21:18

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