3D Printer Motherboard Kit Control Board with LCD Screen 5 A4988 Stepper Motor Drivers Mainboard Controller DC12~24V Item Type: 3D Printer Motherboard Kit For MKS TinyBee V1.0 Motherboard: Material: PCB Motherboard Model: For MKS TinyBee V1.0 MCU: For ESP32 WROOM 32U MCU Frequency: 240MHz Memory: 520K Input Power: DC12~24V <20A Heater: 2 Heater ends and 1 heater bed Temperature ADC: 3 NTC100K: TH1, TB, TH2(jumper selection required) Motor Interface: 5 Axes 6 motor interface (double Z axes parallel) Step Driven Mode: STEP or DIR Moode Drive Signal: Support external high current drive Subdivision Setting: DIP switch LCD Port: Support LCD 2004 or 12864, for MKS MINI12864 V3 Serial Port: For MKS TFT series screen reserved USART2 Terminal Stop: X, Y, Z, MT_DET 3D Touch: Supported Power Protection: Support power reverse protection and power surge protection Motor Back Electromotive Force: Can be absorbed by the phase sequence resistance to protect the stepper driver Firmware: For Marlin 2.0.x Firmware Update Mode: USB flash drive upload Small Memory Card: Not include For MKS Mini12864 V3.0 LCD Graphic Smart Display: Model: For MKS Mini 12864 V3 Material: PCB Logic Level: Support 3.3V, 5V logic input Backlight Mode: For Neopixel RGB adjustable backlight Backlight Adjustment: Light - slight preset(for Martin) Applicable Firmware: For Marlin 2.0, for Klipper Applicable Motherboards: For MKS Robin V2, V3, for SgenlV1, v2, Genl, for Robin E3 Features: Use the built in memory card(not include) slot. Compatible with both 3.3V and 5V logic signals. Support for Gcode backlight Settings, such as M150 R100 G100 U100. Support for MKS Robin V2, V3, for Sgen IV1, for Sgen V2, for GenI, for Robin E3. The for MKS MINI 12864 V3 smart display has an RGB backlight and support online change of backlight color via LCD. Supports color changes in different states during the printing process. SPI communication with the host microcontroller. For Klipper Marlin 2.0 firmware is supported. A4988 Driver Description: The A4988 is a complete microstepper motor driver with a built in converter for easy operation. Bipolar stepper motors can be operated in full step, half step, 1/4, 1/8 and 1/16 step modes with output drive capabilities up to 35V and ± 2A. The A4988 includes a fixed turn off time current regulator in slow or mixed attenuation mode. The A4988 converter is the key to easy implementation. The "stepping" input drives the motor one micro step forward by inputting a pulse. There are no phase sequence tables, high frequency control lines, or complex programming interfaces. The A4988 interface is ideal for situations where complex microprocessors are unavailable or overburdened. A4988 Driver Features and Benefits: · Low RDS(on) output · Automatic current attenuation mode detection, selection · Mixed with slow current attenuation mode · Synchronous rectification, low power consumption · Internal undervoltage lock · Cross flow protection · 3.3 and 5 V compatible logic power supply · Heat off circuit · Ground fault protection · Load short circuit protection · Five Step Modes Are Available: Full step, 1/2, 1/4, 1/8 and 1/16