Hello! Need help with wiring everything correctly so i can controll dc motors with arduino, how should everything be wired? Would appreciate some help.
Best regards Jimmy 
Hello @jimmylarsson97,
If you want to control two motors independently with PWM, here are the connections:
Arduino pin 4 is connected to MDDS30 pin IN1.
Arduino pin 5 is connected to MDDS30 pin AN1.
Arduino pin 6 is connected to MDDS30 pin AN2.
Arduino pin 7 is connected to MDDS30 pin IN2.
Arduino pin GND is connected to MDDS30 pin GND
It is quite similar to this
I hope that helps!