RUMBA Mainboard 32Bit 3D Printer Mainboard + 6*ST820 Stepper Motor Driver Kit for 3D Printer

Specifications of RUMBA Mainboard Input voltage recommended 12 24VInput voltage limit 6 35VStepping driver 6 support SPI socket StepStick MOSFET output 6Maximum bed current 20AMaximum heater current 5ANumber of thermistor connections 5Limit switch 6Firmware Marlin bufix 2 0About ST820 Driver Board overview The main characteristics of the board are Supply voltage from 7 V to 45 V Output current up to 1 5 A rms for each motor phase Peak current regulation through trimmer Form factor and connectivity compatible with RAMPS RepRap Mega Pololu Shield or similar boards Based on STSPIN820 driver featuring Stepper motor driving with a microstepping resolution up to 1 256th of step Overcurrent short circuit and overtemperature protectionsPackage Included rumba Mainboard 1USB Cable 1ST820 driver 6