برد کنترلر پرینترهای سه بعدی MKS MELZI V2.0 controller board

Introduction
MKS Melzi is a cost-effective motherboard developed specifically for Prusa i3 printers and is ideal for Prusa i3 manufacturers.

Optimization:
1, increase the power supply terminal can support 20A current. (According to statistics 30% of the original failure is burned power terminal)
2, the use of MP1584 dedicated power supply chip to support 12V and 24V power input.
3, increase the hot bed terminal can support 20A current, the use of a selection of MOS tube (can support 20A current, has shipped tens of thousands of pieces, the basic trouble-free). (According to statistics 40% of the original failure is burned hot bed terminal)
4, increase the recoverable fuse and protection circuit, to ensure short-term short circuit when the motherboard security.
5, with HR4988 alternative A4988, and after a long test. Driven under the same conditions, the temperature is about 5 degrees lower, the same safe and reliable.
6, MicroUSB changed to ordinary USB more solid and reliable. (According to statistics 10% of the original failure is USB terminal damage)
7, support 2004,12864, MINI12864 display;
8, FT232 modified to CH340, to ensure a stable and reliable under the premise of reducing costs.
9, X motor, Y motor, Z motor, E motor, X limit, Y limit, Z limit, hot bed thermal, nozzle heat replacement for XH2.54 interface, and MKS Base / MKS Gen / MKS MINI Such as uniform, more general, more convenient connection.
10, Z motor has two sockets, suitable for I3 machine dual Z-axis structure
11, motor and limit switch using color terminals, similar to MKS Mini, convenient DIY
12, the fan interface with XH2.54, more suitable for connecting, add a 12V output connection to open the fan