BIGTREETECH E3 RRF V1.1 Wifi 32Bit Control Board Integrated TMC2209 - For Ender 3/5 Pro

E3 RRF Board.

Features:

• High performance main control chip:
  Packs ARM Cortex-M4 STM32F407VGT6 chip with its main frequency up to 168MHz.
• Power chip:
  Adopts AO1284 power chip with the power input of DC 12/24V and maximym output curent up to 4A, greatly reducing power ripple and radiation interference,
• Integrated ESP8266 Wi-Fi module:
  ESP3D with Marlin, DWC with RepRap Firmware
• Extensive expansion interfaces:
  Reserves the interface of Auto-leveling, MICRO USB, 2CNC fans, RBG lights, power outage recovery, shutdown after printing, filament runout detection.
• Removable fuse:
  The anti-reverse design on onboard power supply and removable fuse.
• Adds protection circuit: Adds protection circuit to the thermistor interface
• SD card slot: Uses stable SD card slot
• Strong compatibility: 
  Serial port touch screen of Bigtreetech and Ender3 original LCD12864 screen, LCD12864 with CR10_STOCKDISPLAY interface.
  Marlin and RepRapFirmware.
  Ender3 series 3D printers.
• Onboard sensorless homing:
  Onboard sensorless homing function by installing the jumpers on the board.
  Note: when selecting onboard sensorless homing, the external ENDSTOP can't be used.
• Enhaced heat dissipation:
  MOS Tube: The hotbed MOS Tube uses WSK220N04 for larger heat dissipation area
  Integrated heatsink: Integrated heatsink is applied for better heat dissipation.
• Onboard TMC2209 and onboard sensorless homing.
• Reserves the interface of PT100 thermocouple.
• Compatible with IDEX 3D printer.

Specs:

• Appearance size: 100.75x70.25mm.
• Board layer: 4 layers:
• MCU: ARM Cortex-M4 STM32F407VGT6.
• Power input: 12/24V
• Logic voltage: 3.3V.
• Motor driver: UART mode of onboard TMC2209
• Motor driver interface: XM, YM, ZAM, ZBM, EM
• Temperature sensor interface: TH0, THB, 2 channels100K NTC (thermal resistor)
• Dispaly: All serial port touch scressn of Bigtreetech, LCD 12864 screen
• PC communication interface: MICRO USB, easy to plug, communication baud rate 11520.
• Support file: G-code

More info.