Round LCD - GC9A01 - a status display for an IP-KVM with ESP-KVM

ESP-KVM is free, open-source firmware that turns an ESP32-P4 board into an IP-KVM: another computer's screen, keyboard and mouse in your browser, from the BIOS up. The Round LCD - GC9A01 is an optional extra: a small screen on the box that shows its address and health. What it does → Try the demo →

Round LCD - GC9A01

A 1.28" 240x240 round colour SPI LCD. The same status pages in colour, plus a hotspot QR code a phone camera can join from.

Status	Run on hardware
Controller	GC9A01, GC9A01A
Size	1.28" 240x240; the 1.5" GC9A01A modules work too
Wiring	SPI - SCLK, MOSI, CS, DC and RST to free GPIOs, plus 3V3 and GND
Setting	Settings → Display

Any GC9A01 board, such as the common one in the photo or the Waveshare 1.28inch LCD Module. Wire its SPI pins to any free GPIOs and pick them in the console. Each build offers a set of pins known to work on that board, so you only change them if you wired it differently.

Settings → Pins draws the board's expansion header the way it is printed, with what holds each pin, so a free GPIO is easy to find.

In hotspot mode it shows the join code, and it draws the recovery button's ring, which need the room.