A05-Mainboard for OpenPnP (microsmt pnpboard)

You can also order the same products on ebay

parameters

Material:  PCB  

Color: green

Thickness: 1.6mm 

MCU:   LPC1769FBD100

           120 MHz frequencies , 512 KB Flash, 64 KB SRAM, Ethernet, USB, LQFP100   Package

This mainboard is made according to the open source materials of smoothieboard, and the boot program and firmware have been configured. The firmware comes from  the version   provided by makr.

 you  can  download  the firmware  from

https://makr.zone/smoothieware-new-firmware-for-pnp/500/. 

special note

Precautions for adjusting the driving current of stepping motor

1: When you adjust the potentiometer to change the output current, you must remove the stepping motor first, otherwise the TMC2209 will be damaged

 2: When you measure the voltage of the potentiometer, you must connect the 24V power supply. USB power supply is not enough.

 3: Take care that the radiator does not touch the pin.

Packing list