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E3 Free-runs TMC2209 32-bit Open Source Silent Motherboard
Input voltage:DC 24V
Logic voltage: 3.3V/5V
Main control chip: STM32F401RET6
Motor drive: UART mode with onboard TMC2209
Drive interface: XM, YM, ZM, EM
Temperature sensor interface: TB, TH (2-way 100K NTC)
Communication interface: USB Micro B
Support firmware: Marlin, Klipper
Net weight: 58g
Size: 100×70(mm)