This module has a built-in 5v power supply when the driving voltage is 7v-35v, this supply is suitable for power supply, DO NOT input voltage to +5v supply interface, however leading out 5v for external use is available.
When ENA enable IN1 IN2 control OUT1 OUT2
When ENB enable IN3 IN4 control OUT3 OUT4
Note: Package is not included the screws.
1 x 236 L298N Dual H Bridge DC Stepper Motor Drive Controller Board Module Arduino