SparkFun_Micro_OLED_Arduino_Library

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The SPI interface needs transactions support

1

For more detail, see here: http://dorkbotpdx.org/blog/paul/spi_transactions_in_arduino At the moment this OLED device cannot be operated at the same time as the [Adafruit BLE device](http://www.adafruit.com/product/1697) as the latter sets itself up...

goatchurchprime

Second SPI OLED instance has blank display

1

As reported in this forum issue: https://community.sparkfun.com/t/multiple-sparkfun-micro-oled-display/66302 I can replicate the OP's issue: with two 0.96" OLEDs on an ESP32 Thing Plus C. Using the SPI Hello example, whichever OLED...

PaulZC