I bought an ESP32 development board before, and I wanted to find out if there was an expansion board for this board in Kaiyuan Plaza. After all, it would be too ugly to just use Dupont cables to connect it. After searching for a long time and finding nothing suitable, I made one myself. In order to reduce the difficulty of re-engraving this board, no patches are added. Just solder a pin header and a female header and it can be used directly. This board also reserves a lot of space. If necessary, you can add some LEDs and resistors yourself, so that the high and low levels of the GPIO are more direct. Regarding display, the 0.96-inch OLED can already meet most needs, but for special needs, a 240x2401.3-inch TFT is also connected. There is also a lot of space reserved on the back, and you can modify it yourself to add a TF card slot and camera pin header.
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