
- gpio.1 Air Assist
- gpio.2 LC
- gpio.4 Z Dir
- gpio.5 Z Step
- gpio.6 Y Dir
- gpio.7 Y Step
- gpio.8 XYZ Enable
- gpio.9 SD VCC Select
- gpio.10 SD Detect
- gpio.11 SD D1
- gpio.12 SD D0
- gpio.13 SD Clk
- gpio.14 SD CMD
- gpio.15 X Dir
- gpio.16 X Step
- gpio.17 TXD1
- gpio.18 RXD1
- gpio.19 X UART CS
- gpio.20 Y UART CS
- gpio.21 SD D3
- gpio.47 SD D2
- gpio.35 PWM
- gpio.36 Flame
- gpio.38 Probe
- gpio.39 X- LImit
- gpio.40 y- Limit
- gpio.41 Z- Limit
- gpio.42 Beeper

This uses an ESP32-S3 processor!