Product description: 1,Standard double panel design,fine workmanship, board size:38mm X 30mm 2, Use ULN2003 drive chip,500mA 3,In stepping motor port,four channels highlight SMD green LED diode indicates working status 4, In DC motor port,one channel highlight SMD green LED diode indicates working status 5, Power light:highlight red SMD LED diode 6, Equipped with stepping motor standard interface and DC motor standard interface,can directly call waiting when using 7,Choose through red short circuit hat,support different working voltage motors connect short circuit hat,choose 5V as the working voltage for steeping motor/DC motor Take off short circuit hat,steeping motor/DC motor can choose external voltage for power supply through pins Wiring method: The wiring method for stepping motor: Left 1 N 1 ¡« 1 N 4 connect to the four corresponding IO wires of MCU The right black pins are defined from top to VCC,A,B,C,D £¨ connect to the concentric line,phase A,B,C,D of stepping motor)s The wiring method for DC motor: Left 1 N1 ¡« 1 N 4 connect correspondingly to the four IO wires of MCU The right black pins are defined as:below is VCC Power supply method: Connect short circuit hat,choose 5V as the working voltage for stepping motor/DC motor Take off short circuit hat,stepping motor/DC motor can choose external voltage for power supply via pins Speed down stepping motor Voltage:5V Stepping angle:5.625 X 1/64 Speed reduction ratio:1/64 Five lines four phases,can be driven by common uln2003,can be used as connecting two phase;can be used with PCB board,direct plug and socket,easy to use on PCB board PACKAGE: 1 xDC 5V Step Motor? 1 xULN2003 Driver Board