Pinout

SCE2-M module has some STM32 pins routed to external pads. Pads grouped by functionality provided in tables below.

GPIO pin mapping table
IO pin CPU port Function CPU features
1 PB1 SPINDLE ENABLE ADC
2 PB9 PROBE I2C SDA
3 PA8 PWM OUTPUT  
4 PB4 FLOOD  
5 PB3 MIST  
6 PB0 SPINDLE DIR ADC
7 PB5 STOP  
8 PB8   I2C SCL
Limit switch mapping table
Port Net name
PB12 LIMIT1
PB13 LIMIT2
PB14 LIMIT3
PB15 LIMIT4
PA9 LIMIT_EN
UART pin mapping table
CPU port Net name
PB7 USART1_RX
PB6 USART1_TX
Schematic symbol

SCE2-M.png