Make: Volume 91

There are other variants of these PCBs (e.g.

without any touchscreen controller), but these

are the most commonly available models. The

first one in the list is the “original” CYD; the

second has the same product name, but is a very

different board! An outlier is the 2.2" version — it

has a fast, 8-bit parallel interface for the LCD. The

QSPI displays can update the LCD the fastest.

The “RGB Panel” displays have a very different

interface to the MCU. They use the ESP32-

S3’s PSRAM as a framebuffer. The pixels are

continuously streamed to the display by the

ESP32-S3’s LCD hardware component. This is

easier to manage from software; all ...