4CH 4 Channel HG7881 Chip H-bridge DC 2.5-12V Stepper Motor Driver Module Controller PCB Board 4 Way

Features: ? Motor drive module comes with its own four HG7881 chip. Can drive 4 DC motors, or two 4-wire 2-phase stepping motor. ? Specifications: ? Module supply voltage: 2.5-12V Suitable for the motor range: motor operating voltage 2.5V-12V 0.8A maximum operating current Size: 49mm x 36mm Color: Blue ? Interface Description: ? [10P black curved pin instructions] ? 1 A1 external MCU IO port 2 A2 external MCU IO port 3 B1 external MCU IO port 4 B2 external MCU IO port 5 C1 external MCU IO port 6 C2 external MCU IO port 7 D1 external MCU IO port 8 D2 external MCU IO port 9 + external 2.5V-12V voltage 10 - External GND ? [8P PCB terminal block description] ? ? ?1 MOTORA is connected to DC motor with 2 pins, no direction ? ?2 MOTORB is connected to DC motor with 2 pins, no direction ? ?3 MOTORC connects DC motor with 2 pins, no direction ? ?4 MOTORD connects DC motor with 2 pins, no direction ? Instructions for Use: ? Turn on VCC, GND module power indicator is on A1 input high level, A2 input low level, MOTORA motor forwards; A1 input low level, A2 input high level, MOTORA motor reversed; B1 inputs high level, B2 inputs low level, MOTORB motor rotates forward; B1 input low level, B2 input high level, MOTORB motor reverses; C1 input high level, C2 input low level, MOTORC motor forwards; C1 input low level, C2 input high level, MOTORC motor reversed; D1 input high level, D2 input low level, MOTORD motor forward rotation; D1 input low level, D2 input high level, MOTORD motor reverses; ? Package Incldued: ? 1 x HG7881 4-Channel DC Stepper Motor Driver Controller Board for