The OKY2156 is a DC-motor driver manufactured by OKYSTAR that uses the L293D, PWM, and analog functions to control the motor. It has a Uin mot range of 5-16V and a Uin log of 5V. This driver can be used to control various motors, such as a servo motor, without the need for additional external components. It features various features such as speed control, current-limiting, and overcurrent protection, as well as several other functions that can be used to customize the operation of the motor. This driver is simple to install and configure, making it an ideal choice for a wide range of applications.