L9110S DC Motor Stepper Motor Drive Board H Bridge Arduino Motor Drive

L9110S DC Motor Stepper Motor Drive Board H Bridge Arduino Motor Drive

Features:
- Low static working current
- Wide voltage range: 25-12V
- Each channel has 800mA continuous current output ability
- Comparably low saturation voltage drop
- TTL/ CMOS output level compatible, can direct connect with CPU
- Output built in diode, suitable for sensitive loading
- Control and driving integrate in singlchip IC
- Has high voltage protection function
- Working temp: 0-80degree

51 testing programme
DC motor:
#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);
}