This is an example code to load an image from the SD card and draw it on the OLED screen.
- Photon – SparkFun Photon RedBoard https://www.sparkfun.com/products/13321
- Adafruit OLED Breakout Board - 16-bit Color 1.5" w/microSD holder http://www.adafruit.com/products/1431
- Adafruit mfGFX and SSD1351 Library https://github.com/pkourany/Adafruit_SSD1351_Library/
- bmpDraw Code https://github.com/adafruit/Adafruit-SSD1351-library/blob/master/examples/bmp/bmp.ino