Upgraded Silent Main Board with TMC2208 256 for 3D Printer Anet ET4 Pro Mute

 The 32-bit high-speed ARM chip is used as the main control chip STM32F407, the main frequency is up to 168MHZ, and it has its own FPU floating-point arithmeticunit (Compared to ROBIN STM32F103(72MHZ)and other mega2560(16MHZ), data processing power is faster and faster.
 The circuit board adopts high quality two-layer board and specially optimizesheat dissipation
 Using high quality MOSFET tube, the heat dissipation effect is better.
 Using dedicated power chip to support 12-24V power input.
 Can accept 24V input, the same system power can reduce the hot bed current to 1/4, effectively solve the hot bed MOS tube heating problem.
 Industrial grade chipset makes printing more accurate and fast. It has safety features like overcurrent protection, overload protection, over temperature protectionpre-over-temp alarm, (turn off the heating switch automatically)
 Support offline upgrade function. Copy the upgrade file into the memory card, theninsert it into the 3D printer to complete the program upgrade.
 The mainboard outer packaging adapt packaged with 350 g(Solid Bleached Sulphate)CIS( Coated one side)to draft a better second layer of protection,

Specification:
Compatible: only support ET5 Pro
TMC2208 driver: 256 micro steps
Size: 90*70mm
Microproces: STM32F407
Input Voltage: 8V-35V
Motor Driver: TMC2208
Sensor Type: 100K NTC Thermal resistance
Touch Screen: 2. 8 inch Screen
Firmware Update: Support off line upgrade function
Connection Mode: Online/Offline Printing
Resume Printing: Yes
FiIament Detection: Yes

Package Includes:
1x ET5 Pro Motherboard