Follow the flowchart below and you’ll be up and running soon. If you still get stuck, let us know where you got up to.

LED and power jumper locations
Components useful for getting your Mini Gerbil board going
Start
Start
NY
LED1=on?
LED1=on?
NY
Is K40 on?
Is K40 on?
Turn On K40
Turn On K40
Y
Does board get 5V?
Does board get 5V?
NY
Is Jumper set to 5Vext?
Is Jumper set to 5Vext?
Move jumper 5Vext
Move jumper 5Vext
NY
is jumper set to 5vUSB?
is jumper set to 5vUSB?
Put jumper in 5VUSB or 5Vext
Put jumper in 5VUSB or 5Vext
NY
IS USB cable plugged in working PC?
IS USB cable plugged in working PC?
Plug in USB comms cable
Plug in USB comms cable
NY
IS cable working?
IS cable working?
Replace USB cable (not a charger cable)
Replace USB cable (not a charger cable)
NY
Is USB cable plugged in?
Is USB cable plugged in?
Plug in USB cable
Plug in USB cable
NY
Led2 gives a heart beat?
Led2 gives a heart beat?
NY
Is comm port connected?
Is comm port connected?
Replace board
Replace board
Use a Laser program to connect @ 230400 baud
[Not supported by viewer]
Check which program is using the comm port
[Not supported by viewer]
Check program if it communicates or close program and use a laser program to connect
[Not supported by viewer]
N
Does program connect?
Does program connect?
[Not supported by viewer]NY
OS is WIN10?
OS is WIN10?
Use discover STM32 VCP comm driver (32 or 64 bits) in Windows
[Not supported by viewer]
N
Controller’s firmware is working
Controller’s firmware is working
NY
Steppers move when manually issue commands?
[Not supported by viewer]
NY
IS 24V available on Mini Gerbil?
IS 24V available on Mini Gerbil?
Rectify 24V DC issue (wiring or power supply)
[Not supported by viewer]
Send $X command via console in LB or Gcode sender
[Not supported by viewer]
NY
Steppers move
Steppers move
Replace step sticks
Replace step sticks
Put gantry in home, Check Limits via “?” command in console LB or Gcode sender
[Not supported by viewer]
YN
Does the machine home?
Does the machine home?
Controller works
Controller works
Status is pn:XY?
Status is pn:XY?
Just X?
Just X?
Just Y?
Just Y?
Limits work
Limits work
Mechanical switches?
Mechanical switches?
Increase pull off distance via $27 i.e. 4mm
[Not supported by viewer]
Rectify Y limit or invert via $5
Rectify Y limit or invert via $5
Rectify X limit or invert via $5
Rectify X limit or invert via $5
[Not supported by viewer]
Rectify wiring or switches or invert limits
[Not supported by viewer]
Windows should auto discover the drivers when USB is plugged in
[Not supported by viewer]
Use Admin user and check Windows up to date
[Not supported by viewer]
Try different Laptop or PC
Try different Laptop or PC