42 Stepper Motor Back Drive Control Board NEMA 17

Description

• Based on DRV8825 drive board, or A4988 board. Please buy it alone here.
• Board main control chip CH554
  • Accept control signal via USB or RS-485
  • Send pulse control signal to DRV8825
  • We provide simple demo code, USB CDC to send 1/2 to run motor
  • Back selectable power VCC 3.3V or 5V
• On board RS-485 chip, connect to CH554 UART1, P32/P34, DIR P12
• Back center magnetic encoder MT6816
  • The system can be built to close-loop
  • Communicate with CH554 via SPI interface
  • Optional PWM signal to P11 MCU by jumper
  • We don’t provide demo code for this yet
• Optional programmable LED P10
• Lead out serial debug interface and possible extra pins

Installation please see on this page.

Pin Definition please see here.

Additional information