Pin Mapping

Note

• This page lists the pin mapping of the FLY-Pro X10 mainboard after flashing Klipper firmware. Pin numbers are based on the mainboard schematic.
• UART/CS is the driver communication pin: used as UART with TMC2209, and as chip select CS when using SPI drivers such as TMC5160. The same pin is shared for both functions.
• EN is the enable pin. In Klipper configuration, it is typically active low (with ! prefix in enable_pin).
• DIAG is the driver diagnostic signal pin. When using sensorless homing, configure the corresponding diag_pin according to the table below.

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Driver Pins

The FLY-Pro X10 provides 10 driver ports:

Driver	STEP	DIR	EN	UART/CS	DIAG
DRIVER0	PE7	PG11	PG10	PG12	PG8
DRIVER1	PE8	PE14	PE13	PE15	PG7
DRIVER2	PE9	PG1	PG0	PE12	PG6
DRIVER3	PE10	PF14	PF13	PF15	PG5
DRIVER4	PE11	PF11	PB2	PF12	PG4
DRIVER5	PE2	PF10	PC0	PF5	PG3
DRIVER6	PE3	PF2	PF4	PF1	PG2
DRIVER7	PE4	PC15	PF0	PC14	PB1
DRIVER8	PE1	PB7	PC13	PB6	PF9
DRIVER9	PE0	PG14	PG15	PG13	PC6

Power Off Before Operation

Before starting, completely shut down the printer and disconnect the power supply. Do not plug or unplug wiring harnesses, rearrange interface wiring, or touch terminals while the device is powered on.

DIAG and Sensorless Homing

In the table, rows where the corresponding driver's DIAG is not - indicate that the driver's DIAG signal is already connected to the corresponding input port on the mainboard. When enabling sensorless homing, configure diag_pin directly according to the table. The corresponding input port will be occupied by the DIAG signal, so do not connect mechanical or optical endstop switches to it simultaneously. PWM-OUT / General Output and Servo Signal / BLTouch Control are output ports by nature. They can only be used as DIAG signal references for the corresponding driver when indicated in the table.

SPI Bus

SPI drivers such as the TMC5160 use the mainboard's hardware SPI bus. Configure spi_bus: spi1a in the configuration. There is no need to configure MOSI/MISO/SCLK pins separately:

[tmc5160 stepper_x]
spi_bus: spi1a
cs_pin: corresponding driver's UART/CS pin

Detailed information on software SPI and SPI speed: SPI Configuration Method

Endstops and Probe

Function	Pin	Corresponding Driver DIAG
Endstop Port 0 / IO0	PG8	DRIVER0
Endstop Port 1 / IO1	PG7	DRIVER1
Endstop Port 2 / IO2	PG6	DRIVER2
Endstop Port 3 / IO3	PG5	DRIVER3
Endstop Port 4 / IO4	PG4	DRIVER4
Endstop Port 5 / IO5	PG3	DRIVER5
Endstop Port 6 / IO6	PG2	DRIVER6
HV-IN / General Input	PB1	DRIVER7
PWM-OUT / General Output	PF9	DRIVER8
Servo Signal / BLTouch Control	PC6	DRIVER9
Probe	PC3	-

Servo Port as DIAG Signal

The servo signal port is an output port by nature and cannot be used as a signal input. This product allows direct use of the corresponding DIAG pin number from the driver table for sensorless homing only because the port is internally connected directly to the driver's DIAG pin.

Heaters

Function	Pin
Heated Bed	PC7
Heater Port 0	PF8
Heater Port 1	PF7
Heater Port 2	PF6
Heater Port 3	PE6
Heater Port 4	PE5

Temperature Sensors

Function	Pin
Heated Bed Thermistor	PF3
Thermistor Port 0	PC5
Thermistor Port 1	PC4
Thermistor Port 2	PA4
Thermistor Port 3	PB0
Thermistor Port 4	PC1

Supported Thermistor Types

The thermistor ports support NTC thermistors (100K) by default. It is recommended to configure sensor_type as Generic 3950.

List of Klipper built-in sensor_type options that can be directly connected and their applicable scenarios: Thermistor Configuration Method

K-type thermocouples, PT100, etc., require additional conversion chips and cannot be connected directly to the thermistor ports.

Fans

Function	Pin
Fan Port 0	PA0
Fan Port 1	PA1
Fan Port 2	PA2
Fan Port 3	PA3
Fan Port 4	PA15
Fan Port 5	PB10

Multi-function Fan Ports

FAN6 and FAN7 are multi-function fan ports that support PWM speed control, tachometer feedback, and servo mode:

Function	PWM Output	Tachometer Feedback
Fan Port 6	PB11	PD14
Fan Port 7	PD12	PD15

PWM

The FLY-Pro X10 provides 4 PWM output channels, which can be used for servos, fan speed control, etc.:

Pin	Remarks
PF9	IN / PWM_OUT
PC6	Servo / BLTouch Control
PB11	FAN6
PD12	FAN7

BL-Touch

Function	Pin
Servo Signal	PC6
Probe Signal	PC3