Description:

On board two the L9110S motor control chip the module can simultaneously drive two DC motors or a 4-wire 2-phase stepper motor the module input voltage :2.5-12V the 800mA continuous current output capability per channel 1. Low static work current 2. Power supply voltage: DC2.5-12V 3. Each channel has 800mA continuous current output 4. Low saturation pressure drop 5. TTL/CMOS output level compatible, can be connected directly to the CPU 6. Output built-in clamping diode, apply to the perceptual load 7. Control and drive integrate in IC 8. Have pin high pressure protection function 9. Working temperature: 0-80 ° 10.Size:29.2(mm)x23(mm) 51 test code: #include<reg51.h> sbit MOTOR_A_1 = P0 ^ 0; sbit MOTOR_A_2 = P0 ^ 1; sbit MOTOR_B_1 = P0 ^ 2; sbit MOTOR_B_2 = P0 ^ 3; void delay(unsigned long cnt) { while(cnt--); } void forward(void) { MOTOR_A_1 = 1; MOTOR_A_2 = 0; MOTOR_B_1 = 1; MOTOR_B_2 = 0; } void backward(void) { MOTOR_A_1 = 0; MOTOR_A_2 = 1; MOTOR_B_1 = 0; MOTOR_B_2 = 1; } void main(void) { EX0 = 1; EX1 = 1; EA = 1; while(1) { forward(); delay(30000); backward(); delay(30000); } }