GC9A01 1.28" round IPS 240x240 (SPI) with ESP32

Supply 3.3-5 V Bus SPI
VCCGNDSCLSDADCCSRSTBL

Pins and ESP32 wiring

PinRoleESP32 pinNotes
VCCPower3V3
GNDGroundGND
SCLSPI clockD18SPI clock, not I2C
SDASPI MOSID23SPI data (MOSI), not I2C
DCInput (the ESP32 drives it)D25Data / command select
CSSPI chip selectD5
RSTInput (the ESP32 drives it)D26Reset
BLNot wired to the ESP32—Backlight: to 3V3 or a PWM pin

Suggested wiring for the 30-pin ESP32 DevKit, avoiding flash, input-only and strapping pins. BoardPilot checks it for you as you wire.

Sources

Try it in 3D in BoardPilot

BoardPilot Part data (JSON)

Related parts

Part data: CC BY 4.0, free to reuse with credit to BoardPilot.