I was able to get this working. My setup: ESP32-32 WROOM-1 Waveshare 2.4" LCD ILI9341 Controller SCLK_PIN GPIO_NUM_12 MOSI_PIN GPIO_NUM_11 DC_PIN GPIO_NUM_2 CS_PIN GPIO_NUM_15 RST_PIN GPIO_NUM_4 Baudrate 9600 (I have set this as high as 256000 without issue) I used the Adafruit Gfx library