BigTreeTech E3 RRF V1.1 Wifi 32Bit Control Board Integrated TMC2209

1. Packs ARM Cortex-M4 STM32F407VGT6 chip with its main frequency up to 168MHz

2. Adopts AO1284 power chip with the power input of DC 12/24V and maximum output current up to 4A, greatly reducing power ripple and radiation interference

3. Integrated ESP8266 Wi-Fi module: ESP3D with Marlin & DWC with RepRapFirmware

4. Reserves the interface of Auto-leveling, MICRO USB, 2 CNC fans, RGB lights, power outage recovery, shutdown after printing, filament runout detection

5. Safety design, better protection

Doku: https://github.com/bigtreetech/BTT-E3-RRF