*Dokumentation
Pinouts
CPU Pin Port/pin name Steppers/Drivers
11 PC3 X_ENABLE
10 PC2 X_STEP
57 PB9 X_DIR
2 PC13 Y_ENABLE
61 PB8 Y_STEP
59 PB7 Y_DIR
3 PC14 ZL_ENABLE
58 PB6 ZL_STEP
57 PB5 ZL_DIR
4 PC15 ZR_ENABLE (ZR is E1 in pins definitions)
8 PC0 ZR_STEP
9 PC1 ZR_DIR
50 PA15 E0_ENABLE
56 PB4 E0_STEP
55 PB3 E0_DIR
Fan outputs
14 PA0 FAN_PIN
49 PA14 FAN1_PIN (Controller fan)
27 PB1 E0_AUTO_FAN
Heater outputs
15 PA1 HEATER0
20 PA4 HEATER_BED
41 PA8 HEATER1
Sensor inputs
21 PA5 FILAMENT_RUNOUT
22 PA6 POWER_MONITOR_VOLTAGE
24 PC4 TEMP0
26 PB0 TEMP_BED
Limit switch inputs
23 PA7 X_MIN
25 PC5 Y_MIN
28 PB2 ZL_MIN
37 PC6 ZR_MIN
Other
42 PA9 SERIAL_TX (Usart 0, to CH340 USB serial)
43 PA10 SERIAL_RX
29 PB10 LCD_TX (Usart 2)
30 PB11 LCD_RX
16 PA2 WiFi_TX (Usart 1)
17 PA3 WiFi_RX
35 PB14 WiFi enable/power
33 PB12 AUTO_LEVEL_RX
34 PB13 AUTO_LEVEL_TX
44 PA11 USB_D (Unused?)
45 PA12 USB_P (Unused?)
36 PB15 BEEPER (output)
46 PA13 CASE_LIGHT (output)
SD card
38 PC7 SD_DETECT
39 PC8 SDIO_D0
40 PC9 SDIO_D1
51 PC10 SDIO_D2
52 PC11 SDIO_D3
53 PC12 SDIO_CLK
54 PD2 SDIO_CMD
