Feature:1. VARIOUS FUNCTIONS: This is an on board for ESP32 wifi 3D printer master board. Support for Marlin2.0 firmware. In addition to ordinary LCD2004 and 12864 screens, also support for MKS MINI12864 V3 and for MKS TFT serial screens. The motherboard can update the firmware via USB, and connect to the network and web pages through WIFI function to control the 3D printer2. TECHNICAL PARAMETERS: For ESP32 WROOM 32U(8M Flash) motherboard, built in for ESP32 DOWD V3 chip, for Xtensa dual core, 32 bit LX6 microprocessor, support clock frequency up to 240 MHz, 8192KBytes FLASH, 520KBytes RAM3. POWERFUL AND EFFICIENT: The motherboard use for ESP32 WROOM 32U module, embedded dual core 32 bit high speed MCU, and integrated WIFI, Bluetooth module, performance is very powerful4. SUPPORT FIRMWARES: The smart screen display for MKS MINI 12864 V3.0 memory card(not include) has an RGB backlight, allowing the light color to be changed online. Also support firmware such as for Robin v2 V3, for sgenIV1V2, for GenloMarlin2.x, and for Klipper. With encoder, parameter adjustment can be realized, as well as file selection printing. Plug and play on for RAMPS, but firmware support need to be modified5. STORAGE CAPACITY: The mainboard module has an 8 byte flash memory chip, which provide effective protection for more application scenariosSpecification:Item Type: 3D Printer Motherboard KitFor MKS TinyBee V1.0 Motherboard: Material: PCBMotherboard Model: For MKS TinyBee V1.0MCU: For ESP32 WROOM 32UMCU Frequency: 240MHzMemory: 520KInput Power: DC12~24V <20AHeater: 2 Heater ends and 1 heater bedTemperature 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 MoodeDrive Signal: Support external high current driveSubdivision Setting: DIP switchLCD Port: Support LCD 2004 or 12864, for MKS MINI12864 V3Serial Port: For MKS TFT series screen reserved USART2Terminal Stop: X, Y, Z, MT_DET3D Touch: SupportedPower Protection: Support power reverse protection and power surge protectionMotor Back Electromotive Force: Can be absorbed by the phase sequence resistance to protect the stepper driverFirmware: For Marlin 2.0.xFirmware Update Mode: USB flash drive uploadSmall Memory Card: Not includeFor MKS Mini12864 V3.0 LCD Graphic Smart Display: Model: For MKS Mini 12864 V3Material: PCBLogic Level: Support 3.3V, 5V logic inputBacklight Mode: For Neopixel RGB adjustable backlightBacklight Adjustment: Light - slight preset(for Martin)Applicable Firmware: For Marlin 2.0, for KlipperApplicable Motherboards: For MKS Robin V2, V3, for SgenlV1, v2, Genl, for Robin E3Features: 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.Package List:1 x Control Panel1 x USB Cable1 x Display Screen(memory card side insert version)2 x 10 Pin Colorful Flexible Flat Cable5 x A4988 Stepper Motor Driver5 x Driver Heat Sink