The 1803BK DC motor speed control module has a supply voltage of 1.8 V to 15 V DC. The maximum output power of this module is 30 watts and it can control 1 DC motor through pulse width modulation (PWM) adjustment. Its continuous output current is 2 amps and this module has a 2 amp fuse to protect the controller, the module also has high current protection and reverse power supply. Among the features of this module, we can mention the duty cycle control of the PWM signal, changing the motor speed by means of a potentiometer, and the ability to turn the module on and off. The dimensions of this module are 32mmx32mm and its weight is 14 grams.