-1 doesn't work either, tried the software spi and the other option in the adafruit code, nothing. do I have the pins wrong? i've tried a few different pin combinations as well. thanks for your fast replies.

Copying what you sugested threw this "'null' was not declared in this scope" But, if null is removed, it does compile, I will upload the software when I get to work in the morning. Thank you, I will let you know what happens when it gets uploaded.

Hello, I am trying to make a small electronic multi tool, using an ESP32 dev board with an OLED screen. I have a dht11, and a chronoDot both using I2C just fine, but the OLED (https://www.adafruit.com/product/938) using SPI will not display anything. I know the screen and code are good (code works p...