99 Pinout

📌 Pinout Reference

This document summarizes the GPIO pin mappings available for the firmware.

---

Cardputer

Function	GPIO	Notes
Grove Port	GPIO1 / GPIO2	General I/O
SD Card	GPIO40 / GPIO39 / GPIO14 / GPIO12	SPI interface

---

---

Cardputer ADV

Function	GPIO	Notes
Grove Port	GPIO1 / GPIO2	General I/O
Header	GPIO3 / GPIO4 / GPIO5 / GPI6 / GPIO8 / GPIO9 / GPIO40 / GPI15 / GPI14 / GP13	SPI/I2C/General

---

M5Stick C Plus 2

Function	GPIO	Notes
Header Pins	GPIO26 / GPIO25 / GPIO0
Grove Port	GPIO32 / GPIO33

---

M5Stick S3

Function	GPIO	Notes
Header Pins	GPIO1 / GPIO2 / GPIO3 / GPIO4 / GPIO5 / GPIO6 / GPIO7 / GPI08 / GPI010 / GPO43 / GPIO44
Grove Port	GPIO9 / GPI010

M5 StampS3

Function	GPIOs	Notes
Exposed Pins	GPIO1 / GPIO3 / GPIO5 / GPIO7 / GPIO9 / GPIO13 / GPIO15 / GPIO43 / GPIO44	General I/O

---

M5 AtomS3 Lite

Function	GPIOs	Notes
Onboard GPIOs	GPIO5 / GPIO6 / GPIO7 / GPIO8 / GPIO38 / GPIO39	Button, RGB, etc.
Grove Port	GPIO1 / GPIO2	I2C default

---

LILYGO T-Embed

---

LILYGO T-Embed CC1101

---

Seeed Studio Xiao ESP32-S3