The pin names of the Fly-E3 in the firmware

Fly-E3 Pinout Diagram

Fly-E3 Pinout

Fly-E3 Drivers Pins in Firmware

Driver pin numbers. They are separated into driver number.

Pin Type 0 (X) 1 (Y) 2 (Z) 3 (E0)
Step Pins C.13 E.3 B.9 B.3
Direction Pins C.14 E.4 E.0 B.4
Enable Pins C.15 E.5 E.1 B.5
UART Pins E.6 E.2 B.8 D.7

Fly-E3 Other Pins in Firmware

If more than one pin name is availble, either name can be used in the firmware (config.g).
If the pins aren’t in the table (due to not having a special name), then the pin itself can be used in the form of PA0, PA.0, PA_0, A0, A.0 or A_0.

Pin Number Pin Name 1 Pin Name 2
A.0 bed hbed
A.1 ymin ystop
A.2 xmin xstop
A.3 bedtemp tb
A.4 e0temp t0
A.5 e0heat he0
A.6 fan1  
A.7 fan0 fan
A.9 TX1  
A.10 RX1  
A.13 SWDIO  
A.14 SWCLK  
A.15 SDCD  
B.0 servo0  
B.1 lcden  
B.10 FPC1  
B.11 FPC2  
C.4 probe  
C.5 zmin zstop
C.6 FPC9  
C.8 SDD0  
C.9 SDD1  
C.10 SDD2  
C.11 SDD3  
C.12 SDSCK  
D.0 FPC10  
D.1 FPC11  
D.10 FPC3  
D.11 FPC4  
D.12 FPC5  
D.13 FPC6  
D.14 FPC7  
D.15 FPC8  
E.7 lcdrs  
E.8 lcdd4  
E.9 btnen2  
E.10 btnen1  
E.11 btnenc  
E.12 beep